Sumida Corporation

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        Patent 326
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[Owner] Sumida Corporation 339
Pontiac Coil, Inc. 2
Date
New (last 4 weeks) 3
2026 January (MTD) 2
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2025 October 5
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IPC Class
H01F 27/29 - TerminalsTapping arrangements 67
H01F 27/28 - CoilsWindingsConductive connections 63
H01F 27/24 - Magnetic cores 46
H01F 17/04 - Fixed inductances of the signal type with magnetic core 45
H01F 27/02 - Casings 45
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NICE Class
09 - Scientific and electric apparatus and instruments 9
17 - Rubber and plastic; packing and insulating materials 6
12 - Land, air and water vehicles; parts of land vehicles 4
35 - Advertising and business services 4
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1.

Electronic Component, Electric Device, Bus Bar, Method For Manufacturing Electronic Component, And Method For Manufacturing Electric Device

      
Application Number 19338309
Status Pending
Filing Date 2025-09-24
First Publication Date 2026-01-15
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Fukuchi, Takenori
  • Koyama, Ryoga
  • Ishii, Ryota
  • Hatano, Yusuke

Abstract

An electronic component includes a main body and a bus bar. The main body includes an electronic element. The bus bar is electrically connected to the electronic element. The bus bar includes a hole. The hole opens at a contact surface. An unevenness region is formed at the contact surface. The unevenness region has an unevenness structure around the hole.

IPC Classes  ?

2.

Method For Manufacturing Electronic Component, Electronic Component, And Bus Bar

      
Application Number 19338368
Status Pending
Filing Date 2025-09-24
First Publication Date 2026-01-15
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Fukuchi, Takenori
  • Murakami, Hiroaki
  • Koyama, Ryoga

Abstract

An electronic component includes a main body that includes an electronic element, a bus bar that is electrically connected to the electronic element, and a cover portion that covers a part of an outer surface of the bus bar. A method for manufacturing an electronic component includes molding the cover portion. In molding the cover portion, a pressing member including a pressing surface with unevenness is used. In molding the cover portion, the pressing member covers another part of the outer surface such that the pressing surface comes into pressure contact with the another part, the cover material is placed around the pressing member to mold the cover portion, and the unevenness is transferred to the another part when the pressing surface comes into pressure contact with the another part, thereby forming an unevenness structure.

IPC Classes  ?

  • H01R 43/16 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
  • H01R 43/24 - Assembling by moulding on contact members
  • H02G 5/04 - Partially-enclosed installations, e.g. in ducts and adapted for sliding or rolling current collection

3.

Coil Device, Chip Capacitor Holder, And Method Of Manufacturing Coil Device

      
Application Number 19306127
Status Pending
Filing Date 2025-08-21
First Publication Date 2025-12-25
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Hata, Ryuhei
  • Takahashi, Nobuyuki
  • Chiba, Kenta
  • Gemba, Daichi

Abstract

A coil device includes a coil and a chip capacitor. A coil wire is wound around the coil. The chip capacitor has an electrode surface. The electrode surface is electrically connected to the coil. A connecting portion is a partial length region of the coil wire extracted from the coil. The connecting portion is directly connected to the electrode surface.

IPC Classes  ?

  • H01F 27/40 - Structural association with built-in electric component, e.g. fuse
  • H01F 27/28 - CoilsWindingsConductive connections
  • H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils

4.

CURRENT SENSOR CIRCUIT

      
Application Number 19309693
Status Pending
Filing Date 2025-08-26
First Publication Date 2025-12-11
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

A current sensor circuit includes a detection coil configured such that an inductance changes with a direct current, a resonant capacitor, a phase adjusting circuit that receives a feedback signal from the resonant capacitor and outputs a drive signal, a switching circuit that includes a plurality of switching elements forming a half-bridge circuit or a full-bridge circuit and supplies an alternating current signal to the detection coil and the resonant capacitor by causing the plurality of switching elements to perform a switching operation in accordance with a pulse period of the drive signal, a signal converting circuit that converts the drive signal output from the phase adjusting circuit into a detection signal indicating a change in the direct current, and a detection terminal that outputs the detection signal to the outside.

IPC Classes  ?

  • G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

5.

STEP-UP CONVERTER CIRCUIT AND ELECTRIC TRANSPORT MACHINE INCLUDING SAME

      
Application Number JP2024019728
Publication Number 2025/248665
Status In Force
Filing Date 2024-05-29
Publication Date 2025-12-04
Owner
  • SUMIDA CORPORATION (Japan)
  • OSAKA SANGYO UNIVERSITY (Japan)
Inventor
  • Miyazaki, Hiroyuki
  • Saito, Masaki
  • Iwata, Akihiko

Abstract

A step-up converter circuit (1) comprises a reactor (L1), a first half-bridge circuit (11), a second half-bridge circuit (12), a first step-up capacitor (C1), a second step-up capacitor (C2), a smoothing capacitor (C0) for smoothing the outputs that are inputted in parallel from the first and second half-bridge circuits, and a switching control circuit (15) for carrying out phase control of a switching operation between the first half-bridge circuit and the second half-bridge circuit. The voltage of the first step-up capacitor is superimposed on the voltage of a voltage source and outputted from the first half-bridge circuit, and the voltage of the second step-up capacitor is superimposed on the voltage of the voltage source and outputted from the second half-bridge circuit.

IPC Classes  ?

  • H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode

6.

BOOST CONVERTER CIRCUIT AND ELECTRIC CONVEYOR PROVIDED THEREWITH

      
Application Number JP2025018392
Publication Number 2025/249266
Status In Force
Filing Date 2025-05-21
Publication Date 2025-12-04
Owner
  • SUMIDA CORPORATION (Japan)
  • OSAKA SANGYO UNIVERSITY (Japan)
Inventor
  • Miyazaki, Hiroyuki
  • Saito, Masaki
  • Iwata, Akihiko

Abstract

A boost converter circuit (1) is provided with a reactor (L1), a first half-bridge circuit (10), a second half-bridge circuit (20), a first boost capacitor (C1), a second boost capacitor (C2), a smoothing capacitor (C0) for smoothing the output from an output line linking to a connection line connecting the first boost capacitor and the second boost capacitor, and a switching control circuit (15) for executing control with separate excitation so that the first half-bridge circuit and the second half-bridge circuit perform a switching operation in antiphase. A current pathway for superimposing the voltage of the second boost capacitor onto the voltage of a voltage source and charging the first boost capacitor, and a second current pathway for superimposing the voltage of the first boost capacitor onto the voltage of the voltage source and outputting same are implemented.

IPC Classes  ?

  • H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode

7.

ANTENNA DEVICE AND METHOD FOR MANUFACTURING THE SAME

      
Application Number 19108350
Status Pending
Filing Date 2022-09-29
First Publication Date 2025-11-20
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Hata, Ryuhei
  • Takahashi, Nobuyuki
  • Gemba, Daichi
  • Morita, Junji
  • Tanita, Tomoya
  • Maeno, Kai

Abstract

A method for manufacturing an antenna device comprises melting a brazing material and a removing a part of an insulating film. The antenna device includes an antenna portion formed by winding a coil wire having a coil core covered with the insulating film, and a base having a pad portion to which a part of the coil wire is brazed with the brazing material. In melting the brazing material, the brazing material supplied onto the pad portion is irradiated with a laser beam so that the brazing material melts. In removing a part of the insulating film, the coil wire is immersed in the molten brazing material so that a part of the insulating film is removed from the coil wire, and the coil wire and the pad portion are joined with the brazing material.

IPC Classes  ?

  • B23K 1/005 - Soldering by means of radiant energy
  • B23K 1/00 - Soldering, e.g. brazing, or unsoldering
  • B23K 101/36 - Electric or electronic devices
  • H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

8.

COIL BOBBIN, COIL COMPONENT, AND METHOD OF MANUFACTURING COIL BOBBIN

      
Application Number 18873568
Status Pending
Filing Date 2022-07-21
First Publication Date 2025-11-20
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Yanai, Yosuke
  • Kuriki, Hiromitsu

Abstract

A coil bobbin includes a winding, a first bobbin, and a second bobbin. The first bobbin and the second bobbin are arranged side by side so that axial directions are aligned with each other. The winding is wound in a continuous manner around the first bobbin and the second bobbin and is made to traverse from the first bobbin to the second bobbin through an inside space sandwiched between the first bobbin and the second bobbin that are arranged side by side. In addition, the winding includes a slack portion in the inside space.

IPC Classes  ?

  • H01F 41/098 - Mandrels Formers
  • H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support

9.

COIL COMPONENT

      
Application Number JP2024017746
Publication Number 2025/238703
Status In Force
Filing Date 2024-05-14
Publication Date 2025-11-20
Owner SUMIDA CORPORATION (Japan)
Inventor Tanaka, Kei

Abstract

A cover (40) includes a top surface portion (42) and a leg portion (44). The top surface portion (42) covers over a core (10) and a coil (20) from above. The leg portion (44) extends downward from the top surface portion (42) along the side of the core (10). The leg portion (44) has a claw portion (46). The claw portion (46) protrudes from a part of the leg portion (44) toward the core (10). The cover (40) is attached to the core (10) by engagement of the claw portion (46) with an engagement portion (12) of the core (10). The core (10) is provided with a recess (14) in an outer edge of the upper surface of the core (10). The recess (14) is formed as a downward depression in the upper surface of the core (10). An insertion portion (48), which is a part of the cover (40), is accommodated in the recess (14).

IPC Classes  ?

  • H01F 17/04 - Fixed inductances of the signal type with magnetic core

10.

Coil Component

      
Application Number 19260198
Status Pending
Filing Date 2025-07-03
First Publication Date 2025-10-30
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanifuji, Masami
  • Suzuki, Kaito
  • Ujiie, Tomomi

Abstract

A coil component includes a base portion, a terminal that protrudes from a lower surface of the base portion, and a coil that is electrically connected to the terminal. The lower surface of the base portion includes a lowermost portion that is positioned furthest downward and a protruding surface that is positioned above the lowermost portion. The terminal includes an embedded portion, a protruding portion, a bent portion, and a mounting portion. The embedded portion is embedded in the base portion. The protruding portion is continuous from the embedded portion, protrudes downward from the protruding surface, and has a linear shape. The bent portion is continuous from the protruding portion and is bent toward a side of the base portion. The mounting portion includes a mounting surface that faces downward and the mounting portion is continuous from the bent portion.

IPC Classes  ?

11.

Electronic Component

      
Application Number 19260574
Status Pending
Filing Date 2025-07-06
First Publication Date 2025-10-30
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanaka, Kei
  • Murakami, Asami

Abstract

An electronic component includes a base portion having an accommodating portion that accommodates an electronic element and a terminal. The terminal has a part embedded in the base portion, and one end portion of the terminal protrudes from the base portion toward outside of the base portion. The base portion has a covering portion. The covering portion extends from an outer surface of the base portion and covers at least a part of a periphery of a base end in the one end portion of the terminal.

IPC Classes  ?

  • H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils

12.

Vector Potential Coil Device, Vector Potential Generation Device, And Treatment Device

      
Application Number 19258792
Status Pending
Filing Date 2025-07-02
First Publication Date 2025-10-23
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Saito, Masaki
  • Daibo, Masahiro

Abstract

A vector potential coil device includes a layered conductor member in a spiral roll shape, a first end surface part on an inner circumferential side of a roll of the layered conductor member, and a second end surface part on an outer circumferential side of a roll of the layered conductor member. A power supply device conducts a current to the layered conductor member via the first end surface part and second end surface part to generate a vector potential in the layered conductor member.

IPC Classes  ?

  • H01F 7/20 - ElectromagnetsActuators including electromagnets without armatures
  • A61N 2/00 - Magnetotherapy
  • A61N 2/02 - Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
  • H01F 27/28 - CoilsWindingsConductive connections

13.

MEASUREMENT APPARATUS AND MEASUREMENT METHOD

      
Application Number 18560916
Status Pending
Filing Date 2022-06-07
First Publication Date 2025-10-16
Owner
  • SUMIDA CORPORATION (Japan)
  • Kyoto University (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Mizuochi, Norikazu
  • Takemura, Yuki

Abstract

A light receiving device 13 receives fluorescence emitted by a magnetic resonance member 1 correspondingly to excitation light and generates a fluorescence sensor signal corresponding to an intensity of the fluorescence. A CMR calculation unit 25 performs for the fluorescence sensor signal common mode rejection based on a reference sensor signal generated by receiving a reference light obtained as a branch of the excitation light and thereby generates a CMR signal. An analog-digital converter 26 digitizes the CMR signal and an analog-digital converter 27 digitizes a reference light sensor signal. The processor 31 divides the digitized CMR signal by the digitized reference light sensor signal and thereby generates a detection signal, and derives a measurement value of the measurement target field on the basis of the detection signal; and performs a noise-removal digital filter process for the digitized CMR signal or the detection signal.

IPC Classes  ?

  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
  • G01N 24/00 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
  • G01R 33/32 - Excitation or detection systems, e.g. using radiofrequency signals

14.

INVERTER CIRCUIT AND ELECTRIC FIELD COUPLING NON-CONTACT POWER FEEDING DEVICE

      
Application Number 18285470
Status Pending
Filing Date 2022-01-26
First Publication Date 2025-10-02
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

An inverter circuit comprises: a primary-side circuit including a plurality of self-excited oscillator circuits connected to a DC power supply; and a secondary-side circuit for outputting the multi-phase AC powers in accordance with the oscillations of the self-excited oscillator circuits. Each of the self-excited oscillator circuits includes power transmission coils, a resonant capacitor, a pair of switching elements, a drive coil, and a phase-shift filter. The respective control electrodes of the pair of switching elements are applied with voltages from the drive coil of another one of the self-excited oscillator circuits. The phase of the voltage applied to each of the electrodes of the pair of switching elements is shifted in association with the action of at least the phase-shift filter, with respect to each of the self-excited oscillator circuits, by a phase-shift amount according to the number of phases of output power.

IPC Classes  ?

  • H02M 7/5383 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
  • H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

15.

IMPLANTABLE DEVICE SYSTEM

      
Application Number JP2024038370
Publication Number 2025/191907
Status In Force
Filing Date 2024-10-28
Publication Date 2025-09-18
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Sako Akifumi
  • Detmod Thitaporn
  • Terao Kenji
  • Saito Masaki
  • Daibo Masahiro

Abstract

This implantable device system comprises: an extracorporeal apparatus (2) including an electromagnetic and vector potential generation sensing apparatus (21); and an implantable device (1) including an electromagnetic and vector potential generation sensing apparatus (14) for sensing a vector potential generated by the electromagnetic and vector potential generation sensing apparatus (21). The extracorporeal apparatus (2) includes: a communication circuit (23) that generates a modulation signal indicating transmission data; and a drive circuit (22) that, while modulating the vector potential on the basis of the modulation signal, drives the electromagnetic and vector potential generation sensing apparatus (21) so that the electromagnetic and vector potential generation sensing apparatus (21) generates a modulated vector potential. The implantable device (1) includes a communication circuit (13) that demodulates the modulated vector potential, extracts the modulation signal, generates the transmission data, and outputs the transmission data to a specific functional unit (11).

IPC Classes  ?

  • A61N 1/372 - Arrangements in connection with the implantation of stimulators
  • A61N 1/378 - Electrical supply
  • H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
  • H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

16.

Vehicle Electronic Component Holder Set And Vehicle Electronic Component Holder

      
Application Number 19218838
Status Pending
Filing Date 2025-05-27
First Publication Date 2025-09-11
Owner SUMIDA CORPORATION (Japan)
Inventor Iwasaki, Noriaki

Abstract

A vehicle electronic component holder set includes a shaft member having a circular cross section, and a vehicle electronic component holder. The vehicle electronic component holder includes a base portion provided with an attachment hole through which the shaft member is inserted. The base portion includes a protrusion protruding from a peripheral wall defining the attachment hole toward an inside of the attachment hole. As viewed from the depth direction of the attachment hole, a distance between the protrusion and a center of the attachment hole is smaller than a radius of the shaft member. When the shaft member is inserted into the attachment hole, the protrusion comes into pressure contact with a side surface of the shaft member.

IPC Classes  ?

  • B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems

17.

COIL COMPONENT AND METHOD FOR ASSEMBLING THE SAME

      
Application Number JP2024007450
Publication Number 2025/181987
Status In Force
Filing Date 2024-02-28
Publication Date 2025-09-04
Owner SUMIDA CORPORATION (Japan)
Inventor Fujimaki Takanari

Abstract

The purpose of the present invention is to improve workability and identification of each lead wire when a terminal portion of an electric wire used for a winding coil of a coil component is pulled out to the outside. The present invention comprises a coil component (transformer) body 100 comprising: magnetic cores 1, 2, a bobbin 4 mounted on the magnetic cores 1, 2, and coil windings 6A, 6B formed by winding an electric wire around a winding shaft part (21) of the bobbin 4. The bobbin 4 has suppressing parts 11A, 11B, 12A, 12B having a fulcrum for bending terminal portions 81A, 81B, 91A, 91B in a routing path of the terminal portions 81A, 81B, 91A, 91B of the coil windings 6A, 6B. The terminal portions 81A, 81B, 91A, 91B are held so as to be pressed against pressed portions 13A, 13B, 14A, 14B facing the suppressing parts 11A, 11B, 12A, 12B by a reaction force in a direction opposite to the bent direction caused by the terminal portions 81A, 81B, 91A, 91B being bent with the suppressing parts 11A, 11B, 12A, 12B as fulcrums.

IPC Classes  ?

18.

COIL DEVICE

      
Application Number JP2024007596
Publication Number 2025/182026
Status In Force
Filing Date 2024-02-29
Publication Date 2025-09-04
Owner SUMIDA CORPORATION (Japan)
Inventor Kikuchi, Shuichi

Abstract

A coil portion (10) is fixed to a case (40) by a first resin (50) and a second resin (60). The first resin (50) and the second resin (60) are both disposed in an accommodation space (44). The second resin (60) is softer than the first resin (50). The first resin (50) seals the opening of an accommodation recess (42). The second resin (60) is disposed closer to the bottom side of the accommodation recess (42) than the first resin (50) in the accommodation space (44). At least part of the coil portion (10) is exposed from the first resin (50). Said part is covered by the second resin (60).

IPC Classes  ?

19.

OUTPUT STABILIZING CIRCUIT AND DC/DC CONVERTER CIRCUIT

      
Application Number 18576261
Status Pending
Filing Date 2022-03-23
First Publication Date 2025-08-21
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

An output stabilization circuit (1) includes: a primary-side circuit (2) including a self-oscillation circuit (10) connected to a DC power supply; and a secondary-side circuit (3) obtaining an output voltage by oscillation of the self-oscillation circuit, wherein the self-oscillation circuit includes a drive transformer of which a secondary-side coil is connected to a gate electrode of each of a plurality of switching elements connected in a half-bridge configuration or a full-bridge configuration, a feedback transformer of which a primary-side coil is connected to a power transmission coil, and a phase shift filter that is connected between a secondary-side coil of the feedback transformer and a primary-side coil of the drive transformer and includes a primary-side control coil having a characteristic that an inductance changes in accordance with a current flowing through a secondary-side control coil of the secondary-side circuit.

IPC Classes  ?

  • H02M 3/338 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
  • H02M 1/00 - Details of apparatus for conversion
  • H02M 3/00 - Conversion of DC power input into DC power output
  • H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

20.

Inductor

      
Application Number 19185612
Status Pending
Filing Date 2025-04-22
First Publication Date 2025-08-14
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Kajiyama, Tomohiro
  • Oki, Juichi

Abstract

An inductor includes a coil, a core that encloses the coil, a pair of terminals conducted with the coil, and a conductor shield that covers a surface of the core. The conductor shield covers at least a part of an upper surface or a side surface of the core. The conductor shield is directly conducted with any one terminal of the pair of terminals. The conductor shield is indirectly conducted with the other terminal via the coil.

IPC Classes  ?

21.

Vector Potential Coil Device That Applies Electrical Stimulation To Skin

      
Application Number 19187283
Status Pending
Filing Date 2025-04-23
First Publication Date 2025-08-07
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Terao, Kenji
  • Saito, Masaki
  • Daibo, Masahiro

Abstract

A support part has a housing space that accommodates skin of a living body. A vector potential coil in a vector potential coil device is arranged at at least one of the housing space and an outside of the support part. A power supply section conducts an alternating current through the vector potential coil, generates a vector potential corresponding to the alternating current in the housing space, and provides an electrical stimulation to the skin by applying an electrical field generated based on the vector potential to the skin of the living body.

IPC Classes  ?

  • A61N 1/32 - Applying electric currents by contact electrodes alternating or intermittent currents

22.

Electrical Stimulation Vector Potential Coil Device For Use In Ophthalmic Treatment

      
Application Number 19187349
Status Pending
Filing Date 2025-04-23
First Publication Date 2025-08-07
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION IWATE UNIVERSITY (Japan)
Inventor
  • Terao, Kenji
  • Saito, Masaki
  • Arakaki, Yosuke
  • Daibo, Masahiro

Abstract

A vector potential coil is a solenoid coil extending along a coil axis which is curved. A ferromagnetic member extends in an inside of the solenoid coil along the coil axis. A power supply device conducts a current through the vector potential coil. The vector potential coil and the ferromagnetic member have openings in a circumferential direction.

IPC Classes  ?

  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers

23.

METHOD FOR INHIBITING DECREASE OR PROMOTING INCREASE OF AT LEAST ONE AMONG BONE DENSITY AND BONE STRENGTH, AND VECTOR POTENTIAL GENERATING DEVICE

      
Application Number JP2025013629
Publication Number 2025/146831
Status In Force
Filing Date 2025-04-03
Publication Date 2025-07-10
Owner
  • SUMIDA CORPORATION (Japan)
  • TOYO UNIVERSITY (Japan)
Inventor
  • Moriya Hitoshi
  • Saito Masaki
  • Ohsako Masafumi
  • Minamizono Wataru
  • Yashima Nao
  • Matsunaga Hiroya
  • Suito Hirai
  • Fujikawa Kaoru

Abstract

[Problem] To provide a method for inhibiting the decrease or promoting the increase of at least one among bone density (bone mass) and bone strength. [Solution] A method for inhibiting the decrease or promoting the increase of at least one among bone density and bone strength in the tissue of a living body, the method including a step for applying electrical stimulation to the tissue using a vector potential generating device 1, wherein controlling the electrical stimulation by adjusting the alternating current frequency applied to the vector potential generating device 1 inhibits the decrease or promotes the increase of at least one among bone density and bone strength.

IPC Classes  ?

  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers

24.

MANUFACTURING METHOD OF COIL COMPONENT AND COIL COMPONENT

      
Application Number 19033907
Status Pending
Filing Date 2025-01-22
First Publication Date 2025-07-10
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Takahashi, Motomi
  • Kajiyama, Tomohiro
  • Tanaka, Teruaki
  • Sakamoto, Shinichi
  • Oki, Juichi
  • Kawarai, Mitsugu
  • Otsuka, Tsutomu

Abstract

A manufacturing method of a coil component comprising the steps of: preparing a coil assembly body in which a coil is attached on a magnetic core and a mold body which is formed with a cavity portion in the inside thereof and which includes at least one opening portion, putting a viscous admixture including magnetic powders and thermosetting resin and the coil assembly body in the cavity portion, pushing the put-in viscous admixture in the mold body, and thermally-curing the pushed-in viscous admixture and forming a magnetic exterior body which covers the coil assembly body

IPC Classes  ?

  • B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
  • B22F 1/08 - Metallic powder characterised by particles having an amorphous microstructure
  • B22F 1/10 - Metallic powder containing lubricating or binding agentsMetallic powder containing organic material
  • B22F 3/12 - Both compacting and sintering
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/52 - Heating or cooling
  • B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
  • B29K 105/16 - Fillers
  • B29K 505/00 - Use of metals, their alloys or their compounds, as filler
  • B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
  • H01F 17/04 - Fixed inductances of the signal type with magnetic core
  • H01F 27/28 - CoilsWindingsConductive connections
  • H01F 27/29 - TerminalsTapping arrangements
  • H01F 41/00 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 41/061 - Winding flat conductive wires or sheets
  • H01F 41/076 - Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire

25.

MOVING BODY POWER SUPPLY SYSTEM AND MOVING BODY DEVICE

      
Application Number 18849296
Status Pending
Filing Date 2023-04-03
First Publication Date 2025-07-03
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Kaneko, Tsunaki
  • Saito, Masaki
  • Detmod, Thitaporn
  • Terao, Kenji
  • Daibo, Masahiro
  • Sato, Asahi

Abstract

An alternating current flows in a primary conductor. A moving body device (such as a vehicle) has a vector potential coil. The vector potential coil senses a vector potential in a contactless manner generated by the alternating current flowing in the primary conductor. The vector potential coil conducts a current generated from a voltage difference due to the vector potential. Further, the primary conductor is a part or an entirety of a conductor wire that is continuously arranged along a moving path (such as a road) of the moving body device. The vector potential coil continuously senses the vector potential in the contactless manner and conducts the current when the moving body device (such as the vehicle) is on the moving path (such as the road).

IPC Classes  ?

  • B60L 53/12 - Inductive energy transfer
  • B60L 53/30 - Constructional details of charging stations
  • H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
  • H02M 1/14 - Arrangements for reducing ripples from DC input or output
  • H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

26.

COIL COMPONENT AND METHOD FOR ASSEMBLING COIL COMPONENT

      
Application Number JP2023046590
Publication Number 2025/141680
Status In Force
Filing Date 2023-12-26
Publication Date 2025-07-03
Owner SUMIDA CORPORATION (Japan)
Inventor Fujimaki Takanari

Abstract

The present invention facilitates adjustment to a desired leakage inductance value and prevents narrowing of a coil winding area. The present invention comprises: first and second magnetic cores (not illustrated) combined such that three legs of each of the cores have leading-end parts that oppose each other and the middle leg is inserted into a hollow part 42C of a bobbin 4; and a ring-shaped third magnetic core 3 divided circumferentially and mounted on the outer circumferential surface of a winding shaft part 21 of the bobbin 4 so that a desired leakage inductance value is generated according to the positional relation to the two magnetic cores, wherein the mounting of the third magnetic core 3 on the winding shaft part 21 is achieved by the mutual engagement of a plurality of first engaging parts 64 arranged circumferentially on the outer circumferential surface of the winding shaft part 21 and a second engaging part 65 arranged circumferentially on the inner circumferential surface of the third magnetic core 3 (only one magnetic core portion 3A is illustrated) so as to correspond with the first engaging parts 64.

IPC Classes  ?

  • H01F 37/00 - Fixed inductances not covered by group
  • H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support

27.

COIL COMPONENT

      
Application Number JP2023046354
Publication Number 2025/141630
Status In Force
Filing Date 2023-12-25
Publication Date 2025-07-03
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanifuji, Masami
  • Suzuki, Kaito
  • Monma, Toshimasa
  • Maesawa, Sho

Abstract

A coil component (1) has a first core (10), a second core (20), and a base section (30) in which an accommodating recess (32) is formed. The second core (20) includes a flat plate section (22) and legs (24). The legs (24) extend from one end of the flat plate section (22) toward the bottom surface of the accommodating recess (32) in the axial direction of the coil (50). The accommodating recess (32) includes a first space (34) and a second space (36). A winding core section (12) of the first core (10) is accommodated in the first space (34). The second space (36) is a space different from the first space (34). The legs (24) are accommodated in the second space (36). The base section (30) has leg-restricting sections (38). The leg-restricting sections (38) are disposed on the inner side of the legs (24) in the axial direction.

IPC Classes  ?

  • H01F 17/04 - Fixed inductances of the signal type with magnetic core
  • H01F 27/02 - Casings
  • H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support

28.

SURFACE MOUNT COIL COMPONENT

      
Application Number 18849754
Status Pending
Filing Date 2022-03-29
First Publication Date 2025-06-26
Owner SUMIDA CORPORATION (Japan)
Inventor Hatakeyama, Takeshi

Abstract

Provided is a surface mount coil component comprising: a winding wire with a lead portion; an insulating bobbin with a winding shaft portion for the winding wire; a plurality of mounting terminals protruding from the bobbin; and a plurality of entangling terminals which are formed from the same member as each of the mounting terminals and which are used to entangle the lead portion of the winding wire. A plurality of adjacent entangling terminals are bent with respect to the direction of protrusion from the bobbin; the lead portion is entangled on the bent portions of the entangling terminals.

IPC Classes  ?

  • H01F 27/29 - TerminalsTapping arrangements
  • H01F 27/32 - Insulating of coils, windings, or parts thereof

29.

Coil Component

      
Application Number 19066385
Status Pending
Filing Date 2025-02-28
First Publication Date 2025-06-19
Owner SUMIDA CORPORATION (Japan)
Inventor Kawarai, Mitsugu

Abstract

A coil component includes a coil, a magnetic core which is housed inside the coil, and a fixing unit which fixes the magnetic core to the coil such that the magnetic core is located within the coil in an axial direction. The coil is configured to include a winding wire which extends helically. The magnetic core has a high magnetic permeability and is housed in a central core portion which is inside the coil.

IPC Classes  ?

  • H01F 17/04 - Fixed inductances of the signal type with magnetic core
  • H01F 27/00 - Details of transformers or inductances, in general
  • H01F 27/02 - Casings

30.

HIGH-FREQUENCY MAGNETIC FIELD GENERATING DEVICE

      
Application Number 19044750
Status Pending
Filing Date 2025-02-04
First Publication Date 2025-06-12
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Saito, Masaki
  • Mizuochi, Norikazu
  • Hayashi, Kan

Abstract

A high-frequency magnetic field generating device includes two coils arranged with a predetermined gap in parallel with each other, the two coils (a) in between which electron spin resonance material is arranged or (b) arranged at one side from electron spin resonance material; a high-frequency power supply that generates microwave current that flows in the two coils; and a transmission line part connected to the two coils, that sets a current distribution so as to locate the two coils at positions other than a node of a stationary wave.

IPC Classes  ?

  • G01R 33/60 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance using electron paramagnetic resonance
  • G01N 24/10 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using electron paramagnetic resonance
  • G01R 33/032 - Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday
  • G01R 33/12 - Measuring magnetic properties of articles or specimens of solids or fluids
  • G01R 33/32 - Excitation or detection systems, e.g. using radiofrequency signals
  • G01R 33/34 - Constructional details, e.g. resonators
  • G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver

31.

Magnetic Field Measurement Device

      
Application Number 19046878
Status Pending
Filing Date 2025-02-06
First Publication Date 2025-06-12
Owner
  • SUMIDA CORPORATION (Japan)
  • Kyoto University (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Hamada, Shingo
  • Sako, Akifumi
  • Takemura, Yuki
  • Mizuochi, Norikazu

Abstract

A microwave from a high frequency magnetic field generator and a static magnetic field from a magnet are applied to a magnetic resonance member. An FT senses a measured magnetic field with a primary coil and applies an applied magnetic field corresponding to the sensed measured magnetic field to the magnetic resonance member with a secondary coil. A light guide member guides incident light of a specific wavelength to the magnetic resonance member, and a light guide member guides fluorescence generated by the magnetic resonance member from the magnetic resonance member. The magnetic resonance member is arranged to be sandwiched between an end surface of the light guide member and an end surface of the light guide member in a hollow part of the secondary coil of the FT and in a hollow part of the magnet. In addition, the secondary coil is a bobbinless coil.

IPC Classes  ?

  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
  • G01R 33/00 - Arrangements or instruments for measuring magnetic variables

32.

Electronic Component And Method For Holding Conducting Wire End

      
Application Number 19059509
Status Pending
Filing Date 2025-02-21
First Publication Date 2025-06-12
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Moriya, Hitoshi
  • Morimoto, Yasunori
  • Ishii, Ryota
  • Chiba, Kenta
  • Kosai, Ryuta

Abstract

An electronic component includes: a conducting wire having conductivity; and a conductive member having a bent terminal that holds an end of the conducting wire. The bent terminal includes: a base portion that supports the conducting wire; a folding portion that is continuous from one end side of the base portion and that is bent and folded back; and a bending portion that is continuous from the folding portion and that is provided to a distal end side opposite to the base portion. The conducting wire is sandwiched between the base portion and the folding portion or the bending portion. The bending portion is bent toward a side closer to the base portion than a tangential direction of the folding portion, so that a gap between the bending portion and the base portion is smaller than a width of the conducting wire.

IPC Classes  ?

33.

COIL COMPONENT AND METHOD FOR MANUFACTURING COIL COMPONENT

      
Application Number JP2023043775
Publication Number 2025/120793
Status In Force
Filing Date 2023-12-07
Publication Date 2025-06-12
Owner SUMIDA CORPORATION (Japan)
Inventor Murakami, Asami

Abstract

A base (30) is provided with a pedestal part (36) and a standing part (38). Terminal members (40) are disposed at the pedestal part (36). A coil (20) or a core (10) is placed on the pedestal part (36). The standing part (38) is disposed standing to intersect a surface of the pedestal part (36) in the standing direction. In the base (30), the pedestal part (36) and the standing part (38) are integrally formed. One end surface of each of a plurality of coils (20) faces an opposite surface (38a) which is a side surface of the standing part (38).

IPC Classes  ?

  • H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support

34.

SENSOR DEVICE

      
Application Number JP2024035640
Publication Number 2025/109883
Status In Force
Filing Date 2024-10-04
Publication Date 2025-05-30
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Miyazaki, Hiroyuki
  • Hatakeyama, Takeshi

Abstract

A sensor device (1) comprises: a magnetic material core part (2) capable of forming a closed magnetic circuit including two outer leg parts; two coil parts (L1 and L2) that are respectively formed by winding wires around the two outer leg parts and each generate a signal magnetic flux according to an alternating-current signal applied; a magnetic flux generation unit that generates a bias magnetic flux so that the bias magnetic flux circulates through the closed magnetic circuit; an alternating-current signal circuit (3) for applying an alternating-current signal to each of the two coil parts so that a signal magnetic flux in the same direction as the bias magnetic flux is generated in each of the outer leg parts; and signal output terminals (V1 and V2) for outputting detection signals that allow for detection of voltage balance between the two coil parts (L1 and L2) that changes according to an external magnetic field acting on the magnetic material core part (2).

IPC Classes  ?

  • G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
  • G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers

35.

PACKAGING MATERIAL, PACKAGED ELECTRONIC COMPONENT, AND PACKAGING METHOD

      
Application Number JP2023042032
Publication Number 2025/109726
Status In Force
Filing Date 2023-11-22
Publication Date 2025-05-30
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Haga, Takashi
  • Ono, Akihiro

Abstract

A support part (20) includes an upper surface part (22), a lower surface part (26), and an intermediate part (24). The upper surface part (22) is a flat plate part extending in the horizontal direction. In addition, a load of a second packaging material (1x) is applied to the upper surface part (22). The lower surface part (26) is disposed below the upper surface part (22). In addition, the lower surface part (26) is a flat plate part extending in the horizontal direction. The intermediate part (24) is a portion sandwiched between an end section of the upper surface part (22) and an end section of the lower surface part (26). The upper surface part (22), the lower surface part (26), and the intermediate part (24) are integrally formed of a member having a predetermined thickness. The upper surface part (22) and the lower surface part (26) face each other in the loading direction and overlap each other.

IPC Classes  ?

  • B65D 85/86 - Containers, packaging elements or packages, specially adapted for particular articles or materials for electrical components
  • B65D 21/02 - Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together

36.

DRUG DELIVERY DEVICE

      
Application Number JP2024023968
Publication Number 2025/094448
Status In Force
Filing Date 2024-07-02
Publication Date 2025-05-08
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Terao Kenji
  • Saito Masaki
  • Sako Akifumi
  • Arakaki Yosuke
  • Daibo Masahiro

Abstract

In the present invention, a vector potential coil device (VP coil (11)) generates a vector potential. A power supply device drives the vector potential coil device. A bed (41) allows the vector potential coil device (1) to be positioned so that the vector potential is applied to a site (101a) to which a drug is delivered in a living body (101). The power supply device causes the vector potential coil device to generate a vector potential so that the drug is delivered to the site (101a) through electrophoresis using an electric field formed by the vector potential.

IPC Classes  ?

  • A61N 1/30 - Apparatus for iontophoresis or cataphoresis
  • A61N 2/02 - Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets

37.

S SUMIDA

      
Application Number 240362200
Status Pending
Filing Date 2025-05-01
Owner Sumida Corporation (Japan)
NICE Classes  ? 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

(1) Ropeways for cargo or freight handling, unloading tipplers (for tilting railway freight cars), mine-car pushers, mine-car pullers, tractors, non-electric prime movers for land vehicles (not including "their parts"), shafts, axles or spindles (for land vehicles), bearings (for land vehicles), shaft couplings or connectors (for land vehicles), power transmissions and gearings (for land vehicles), shock absorbers (for land vehicles), springs (for land vehicles), brakes (for land vehicles), parachutes, anti-theft alarms for vehicles, wheelchairs, AC motors or DC motors for land vehicles (not including "their parts"), vessels and their parts and fittings (other than "air cushion vehicles"), air-cushion vehicles, aircraft and their parts and fittings, railway rolling stock and their parts and fittings, automobiles and their parts and fittings, two-wheeled motor vehicles, bicycles and their parts and fittings, baby carriages (prams), rickshaws, sleighs and sleds, wheelbarrows, carts, horse drawn carriages, bicycle trailers (Riyakah), adhesive rubber patches for repairing tubes or tires.

38.

MAGNETICALLY COUPLED INDUCTOR AND METHOD OF ASSEMBLING THE SAME

      
Application Number 18834911
Status Pending
Filing Date 2022-03-29
First Publication Date 2025-05-01
Owner SUMIDA CORPORATION (Japan)
Inventor Fujimaki, Takanari

Abstract

An annular-shaped spacer member is attached in a split manner in a circumferential direction of a winding shaft portion of a bobbin through which middle leg portions are inserted. The spacer member includes: a cylindrical portion on which an annular third core is placed; and flange portions provided at both ends thereof. The third core is split in the circumferential direction and mounted on the outer circumferential portion of the cylindrical portion of the spacer member in a state in which, of elements of the shape of the third core and the material characteristic of the third core, the magnitude of at least one of the elements is set so that a desired leakage inductance value is generated.

IPC Classes  ?

  • H01F 3/10 - Composite arrangements of magnetic circuits
  • H01F 5/02 - Coils wound on non-magnetic supports, e.g. formers
  • H01F 17/04 - Fixed inductances of the signal type with magnetic core
  • H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
  • H01F 38/14 - Inductive couplings
  • H01F 41/098 - Mandrels Formers

39.

ANTENNA UNIT AND DOOR HANDLE

      
Application Number JP2023035176
Publication Number 2025/069257
Status In Force
Filing Date 2023-09-27
Publication Date 2025-04-03
Owner SUMIDA CORPORATION (Japan)
Inventor Iwasaki, Noriaki

Abstract

A long antenna unit (10) which is connected to an external circuit board (110). The antenna unit (10) has an antenna part (20) and a flexible part (30). In the antenna part (20), a coil wire (22) is wound around a core (24). The flexible part (30) can bend in a bending direction. The bending direction is a direction intersecting the longitudinal direction of the antenna unit (10). When a force is applied to the antenna unit (10) so as to bend the antenna unit (10) as a whole in one direction of the bending direction, the flexible part (30) can bend larger than the core (24) in the one direction.

IPC Classes  ?

  • H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
  • B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof
  • E05B 85/16 - Handles pivoted about an axis parallel to the wing a longitudinal grip part being pivoted at one end about an axis perpendicular to the longitudinal axis of the grip part

40.

Coil component

      
Application Number 18728951
Grant Number 12260984
Status In Force
Filing Date 2024-07-15
First Publication Date 2025-03-25
Grant Date 2025-03-25
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanifuji, Masami
  • Suzuki, Kaito
  • Monma, Toshimasa
  • Maesawa, Sho

Abstract

A coil component includes a first core, a second core, and a base unit in which a housing recess is formed. The second core includes a flat plate section and a leg. The leg extends from one end portion of the flat plate section toward the bottom surface of the housing recess in the axial direction of a coil. The housing recess includes a first space and a second space. A winding core section of the first core is housed in the first space. The second space is a space different from the first space. The leg is housed in the second space. The base unit includes a leg restricting section. The leg restricting section is disposed on the inward side of the leg in the axial direction.

IPC Classes  ?

41.

Antenna Device

      
Application Number 18943135
Status Pending
Filing Date 2024-11-11
First Publication Date 2025-02-27
Owner SUMIDA CORPORATION (Japan)
Inventor Iwasaki, Noriaki

Abstract

An antenna device includes a base having a mounting portion, and a chip electronic component. The land includes at least a pair of mounting terminals for mounting the capacitor chip. The base has an uneven portion formed at an edge portion of an opening. The uneven portion includes a recess and a protrusion, and protrudes and is recessed in a direction in which the mounting terminals that form a pair are aligned at the edge portion of the opening. The protrusion defines a mounting space at a position where at least a pair of terminals of the capacitor chip faces the mounting terminals that form a pair.

IPC Classes  ?

  • H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
  • H01Q 1/12 - SupportsMounting means

42.

MAGNETIC COUPLING REACTOR AND ASSEMBLY METHOD THEREFOR

      
Application Number JP2023030395
Publication Number 2025/041320
Status In Force
Filing Date 2023-08-23
Publication Date 2025-02-27
Owner
  • SUMIDA CORPORATION (Japan)
  • MITSUBISHI HEAVY INDUSTRIES, LTD. (Japan)
Inventor
  • Fujimaki Takanari
  • Yamaguchi Takayuki
  • Chizuwa Shuhei
  • Masuzawa Takashi

Abstract

A magnetic coupling reactor 100 includes: an outer peripheral core 130 including E-type cores 110 or the like equipped with a first magnetic outer peripheral wall 140 or the like, a second magnetic outer peripheral wall 150a or the like curved from both ends thereof, a third magnetic outer peripheral wall 150b or the like, and a magnetic middle leg section 150c or the like erected on an inner surface of the first magnetic outer peripheral wall 140 or the like, in which the outer peripheral core 130 is formed in a hexagonal shape by causing the end sections of the second magnetic outer peripheral walls 150a or the like and the end sections of the third magnetic outer peripheral walls 150b or the like to abut each other in adjacent E-type cores 110 or the like among three E-type cores 110 or the like and thereby arranging said E-type cores 110 or the like in the peripheral direction; a Y-type core 160 in which a gap is left between the three magnetic middle leg sections 150c or the like and constricted parts 161 are arranged facing each other in a space formed by central parts 135 with each of the magnetic middle leg sections 150c or the like extending toward the central parts 135; and a coil 170 or the like wound around each of the magnetic middle leg sections 150c or the like.

IPC Classes  ?

  • H01F 37/00 - Fixed inductances not covered by group

43.

INDUCTOR ASSEMBLY

      
Application Number JP2023030101
Publication Number 2025/041251
Status In Force
Filing Date 2023-08-22
Publication Date 2025-02-27
Owner SUMIDA CORPORATION (Japan)
Inventor Minamidate, Satoshi

Abstract

Each of a pair of first terminals (30) has a mounting part and a standing part (34). The mounting part extends along a lower surface (105) of an inductor assembly (100). The standing part (34) stands relative to the mounting part. Each of a pair of second terminals (40) has a mounting part and a standing part (44). The mounting part extends along the lower surface (105) of the inductor assembly (100), and the standing part (44) stands relative to the mounting part. The standing part (34) of one first terminal (30a) and the standing part (44) of one second terminal (40a) are formed on a first side surface (101) of the inductor assembly (100). The pair of first terminals (30) and the pair of second terminals (40) are not formed on a second side surface (102) different from the first side surface (101) of the inductor.

IPC Classes  ?

  • H01F 27/00 - Details of transformers or inductances, in general

44.

BIOLOGICAL VECTOR POTENTIAL GENERATION DEVICE AND METHOD FOR OPERATING SAME

      
Application Number JP2024018466
Publication Number 2025/041394
Status In Force
Filing Date 2024-05-20
Publication Date 2025-02-27
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Saito Masaki
  • Kaneko Tomoyuki
  • Detmod Thitaporn
  • Daibo Masahiro

Abstract

[Problem] To provide a biological vector potential generation device capable of suppressing resistance and inductance of a solenoid coil while also conducting a large current. [Solution] A biological vector potential generation device 1 comprises a vector potential coil 10 obtained by winding solenoid coils 20a-20d, which are formed by winding conductors 22a-22d connected in series around core wires 21a-21d, along substrates 30a-30d having insulating properties. Further, an oscillator 36 and amplifiers 31-34 are provided, the amplifiers being connected to the oscillator 36 and being connected respectively to a plurality of vector potential coils 10a-10d. The vector potential coils 10a-10d are layered so that the central axes of the substrates 30a-30d coincide with each other. A vector potential is generated in an internal space by making a current flow through the vector potential coils 10a-10d connected to the amplifiers 31-34.

IPC Classes  ?

  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
  • A61N 1/06 - Electrodes for high-frequency therapy

45.

COIL COMPONENT, COIL DEVICE, AND METHOD FOR PRODUCING COIL COMPONENT

      
Application Number 18718330
Status Pending
Filing Date 2022-01-26
First Publication Date 2025-02-13
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Kawashima, Hiroshi
  • Morita, Junji
  • Gemba, Daichi

Abstract

A coil component, in which the axial direction length including a gap and a coupling part of two coil elements is shortened for size reduction, and deterioration in characteristics and the risk of heat generation that could occur when the leakage magnetic flux comes into contact with a twisted portion can be reduced; a coil device; and a method for producing the coil component. The component includes: first and second coil elements formed from a coil winding body obtained by rectangularly stacking one rectangular wire in an edge-wise manner, which is divided into two and folded back, and in which the opposing side surfaces of the are disposed to be parallel and in close contact; and a coupling part that couples the coil elements, which straddles the upper surfaces of both coil elements. The coupling part includes, at one portion, a twisted section where the rectangular wire is twisted 180°.

IPC Classes  ?

46.

THERAPEUTIC DEVICE

      
Application Number JP2024022770
Publication Number 2025/032991
Status In Force
Filing Date 2024-06-24
Publication Date 2025-02-13
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
  • ITO CO., LTD. (Japan)
Inventor
  • Terao Kenji
  • Saito Masaki
  • Daibo Masahiro
  • Takanaka Keita
  • Nakamura Tatsuya

Abstract

A vector potential coil device (1) generates a vector potential and applies electrical stimulation to an affected area by the generated vector potential. A heating means (actuator (3)) heats the affected area. A vector potential coil drive device (2) drives the vector potential coil device (1). A high-frequency power supply (4) drives the actuator (3). A controller (5) controls the vector potential coil drive device (2) and the high-frequency power supply (4) to cause the vector potential coil device (1) to generate a vector potential under a predetermined condition based on combined therapy of the hyperthermic therapy and the electrical stimulation, and to cause the heating means to heat the affected area.

IPC Classes  ?

  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
  • A61F 7/00 - Heating or cooling appliances for medical or therapeutic treatment of the human body
  • A61N 7/02 - Localised ultrasound hyperthermia

47.

NUCLEAR MAGNETIC RESONANCE SENSING DEVICE AND NUCLEAR MAGNETIC RESONANCE SENSING METHOD

      
Application Number 18700532
Status Pending
Filing Date 2022-08-12
First Publication Date 2025-01-02
Owner
  • SUMIDA CORPORATION (Japan)
  • KYOTO UNIVERSITY (Japan)
Inventor
  • Ohki, Izuru
  • Mizuochi, Norikazu
  • Yoshii, Yoshiharu
  • Kaneko, Tsunaki
  • Sako, Akifumi

Abstract

A nuclear magnetic resonance sensor applies a high frequency magnetic field based on an RF signal to a target and generates an observation signal with a frequency shifted from that of the RF signal by a frequency of an NMR signal. A mixer generates an IF demodulation signal including the NMR signal. A low-pass filter passes a low frequency component of the IF demodulation signal. In a digitizing device, a physical field generator generates a magnetic field corresponding to the IF demodulation signal passed through the low-pass filter, an optical quantum sensor generates light corresponding to the magnetic field by a sensing member and converts the light into a sensor signal by a photoelectric element, and an analog/digital converter digitizes the sensor signal. The optical quantum sensor performs a quantum operation on the sensing member and causes the sensing member to generate the light corresponding to the magnetic field.

IPC Classes  ?

  • G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver

48.

Coil Component

      
Application Number 18830922
Status Pending
Filing Date 2024-09-11
First Publication Date 2024-12-26
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Monma, Toshimasa
  • Yamamoto, Shin

Abstract

A coil component includes a magnetic core having a core portion; an insulation frame housing the magnetic core; an electrode terminal member provided on the insulation frame; and at least one coil, which is formed of an insulatingly coated lead wire and is electrically connected to the electrode terminal member, wherein at least one coil includes a winding portion wound around the insulation frame and the core portion so as to be in contact with a second wall portion and a fifth wall portion of the insulation frame.

IPC Classes  ?

49.

TRANSFORMER TURNS NUMBER TESTING CIRCUIT

      
Application Number 18698628
Status Pending
Filing Date 2022-08-08
First Publication Date 2024-12-19
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

Provided is a circuit capable of accurately testing the number of coil turns even with a transformer having a high turns ratio. Provided is a circuit capable of accurately testing the number of coil turns even with a transformer having a high turns ratio. A transformer turns number testing circuit (1) is configured to be able to connect primary-side coils (Np1 and Np2) and secondary-side coils (Ns1 and Ns2) of a reference transformer (CT1) and a to-be-tested transformer (CT2) in phase and in series, and includes: a reference-side resistance element (R1) included in a reference-side loop circuit (Lp1) formed between both ends of the secondary-side coil of the reference transformer; a to-be-tested-side resistance element (R2) included in a to-be-tested-side loop circuit (Lp2) formed between both ends of the secondary-side coil of the to-be-tested transformer; and a voltage detector (Rd) provided in a common line of the reference-side loop circuit and the to-be-tested-side loop circuit, the common line connecting a midpoint between the secondary-side coils of the reference transformer and the to-be-tested transformer and a midpoint between the reference-side resistance element and the to-be-tested-side resistance element.

IPC Classes  ?

  • G01R 29/20 - Measuring number of turnsMeasuring transformation ratio or coupling factor of windings

50.

DIGITIZING DEVICE AND DIGITIZING METHOD

      
Application Number 18700602
Status Pending
Filing Date 2022-09-20
First Publication Date 2024-12-19
Owner
  • SUMIDA CORPORATION (Japan)
  • Kyoto University (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Kaneko, Tsunaki
  • Mizuochi, Norikazu
  • Ohki, Izuru

Abstract

A physical field generator generates a magnetic field or an electric field corresponding to an input signal. An optical quantum sensor part generates light corresponding to the magnetic field or the electric field by a sensing member and converts the light into an electrical signal as a sensor signal by a photoelectric element. An analog/digital converter digitizes the sensor signal. Further, the optical quantum sensor part performs a quantum operation with respect to the sensing member mentioned above and causes the sensing member mentioned above to generate the light mentioned above corresponding to the magnetic field or the electric field mentioned above.

IPC Classes  ?

  • G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver
  • B82Y 15/00 - Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
  • B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
  • H03M 1/08 - Continuously compensating for, or preventing, undesired influence of physical parameters of noise

51.

MEASUREMENT DEVICE AND MEASUREMENT METHOD

      
Application Number 18701719
Status Pending
Filing Date 2022-09-20
First Publication Date 2024-12-12
Owner
  • SUMIDA CORPORATION (Japan)
  • Kyoto University (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Mizuochi, Norikazu
  • Takemura, Yuki

Abstract

A light receiving device receives fluorescence emitted by a magnetic resonance member in response to excitation light and generates a fluorescence sensor signal corresponding to a fluorescence intensity. A CMR arithmetic part performs common mode rejection with respect to the fluorescence sensor signal based on a reference light sensor signal of reference light that is obtained by branching the excitation light in consideration of nonlinearity of a level of the fluorescence sensor signal corresponding to an amount of the excitation light and generates a CMR signal. An A/D converter digitizes the CMR signal. An analog/digital converter digitizes the reference light sensor signal. An arithmetic processing device derives a measurement value of a measured field based on the digitized CMR signal and the digitized reference light sensor signal.

IPC Classes  ?

  • G01N 24/00 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
  • G01N 21/64 - FluorescencePhosphorescence
  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping

52.

CONTROL CIRCUIT AND CONTROL METHOD FOR LLC RESONANT CONVERTER CIRCUIT

      
Application Number JP2023020860
Publication Number 2024/252488
Status In Force
Filing Date 2023-06-05
Publication Date 2024-12-12
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

This control circuit (30) for an LLC resonant converter circuit is equipped with: a drive control circuit (50) that outputs, to a drive circuit, a drive signal indicating a switching frequency corresponding to the voltage level of a frequency control terminal and a duty ratio corresponding to the voltage level of a duty control terminal; a detection circuit (40) that detects an output voltage from the LLC resonant converter circuit; a voltage divider circuit (60) that divides an input voltage and applies same to the duty control terminal as a duty control voltage; and a regulation circuit (70) that is connected to the voltage divider circuit and the detection circuit and can adjust the duty control voltage and a frequency control voltage, and which, in response to a switch from an input of a first instruction signal to a second instruction signal, changes the duty control voltage so that the duty ratio indicated by the drive signal increases and changes the frequency control voltage so that the switching frequency indicated by the drive signal decreases.

IPC Classes  ?

  • H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC

53.

LLC RESONANT CONVERTER CIRCUIT

      
Application Number JP2023016449
Publication Number 2024/224510
Status In Force
Filing Date 2023-04-26
Publication Date 2024-10-31
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

An LLC resonant converter circuit (1) comprises: a resonant capacitor (Cr); a resonant coil (Np) that is a primary winding of a transformer (3) and, in conjunction with the resonant capacitor, forms a serial resonance circuit (11); an inverter circuit (12); and a frequency control circuit (15) that outputs a drive signal, the frequency of which is made to vary in accordance with the voltage of a feedback signal, to the inverter circuit. The LLC resonant converter circuit further comprises: a circuit (30) that detects an output power from a secondary-side circuit (20) and generates the feedback signal; a circuit (40) that detects a potential difference between a resonance signal of the serial resonance circuit and the drive signal; and a circuit (50) that controls the voltage of the feedback signal so that decreases in frequency in the drive signal due to the frequency control circuit (15) are suppressed in accordance with the potential difference.

IPC Classes  ?

  • H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC

54.

NUCLEAR MAGNETIC RESONANCE SENSING DEVICE AND NUCLEAR MAGNETIC RESONANCE SENSING METHOD

      
Application Number JP2023016805
Publication Number 2024/224587
Status In Force
Filing Date 2023-04-28
Publication Date 2024-10-31
Owner
  • SUMIDA CORPORATION (Japan)
  • KYOTO UNIVERSITY (Japan)
Inventor
  • Yoshii Yoshiharu
  • Sako Akifumi
  • Hamada Shingo
  • Mizuochi Norikazu
  • Ohki Izuru

Abstract

A nuclear magnetic resonance sensing unit 1 applies, to a target object, a high-frequency magnetic field based on an RF signal and generates an observation signal having a frequency shifted from a frequency of the RF signal by a frequency of an NMR signal. A mixer unit 6 generates an IF demodulated signal that includes the NMR signal. A low-pass filter 7 transmits a low-frequency band component of the IF demodulated signal. In a digitizing device 21, a physical field generation device generates a magnetic field and the like corresponding to the IF demodulated signal that has been transmitted through the low-pass filter 7, an optical quantum sensor unit causes a sensing member to generate light corresponding to said magnetic field and the like and causes a photoelectric element to convert said light to a sensor signal, and an analogue-digital converter digitizes said sensor signal. This optical quantum sensor unit applies a quantum operation to the above-mentioned sensing member and causes the sensing member to generate the light corresponding to the above-mentioned magnetic field and the like.

IPC Classes  ?

  • G01N 24/00 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects

55.

COIL COMPONENT, AND METHOD FOR MANUFACTURING COIL COMPONENT

      
Application Number JP2023015501
Publication Number 2024/218870
Status In Force
Filing Date 2023-04-18
Publication Date 2024-10-24
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanaka, Kei
  • Moriya, Hitoshi
  • Murakami, Asami

Abstract

A coil component (100) comprises a magnetic core (10), a coil (90), a body member (20) having a base part (30), and a terminal member (80). A fitting recess (50) is formed in the base part (30). The terminal member (80) is a coil component that is fitted into the fitting recess (50) by a fitting structure. The fitting recess (50) includes a pair of first planar parts facing each other. At least a portion of the terminal member (80) is disposed between the pair of first planar parts. The fitting structure is one or a plurality of projections (55) formed on the fitting recess (50). The projections (55) are crushed between the terminal member (80) and one of the first planar parts. The terminal member (80) is fitted into the fitting recess (50) in a state of being pressed toward at least the other first planar part among the pair of first planar parts by the projections (55).

IPC Classes  ?

56.

COIL DEVICE, CHIP CAPACITOR HOLDER, AND METHOD FOR MANUFACTURING COIL DEVICE

      
Application Number JP2023014739
Publication Number 2024/214183
Status In Force
Filing Date 2023-04-11
Publication Date 2024-10-17
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Hata, Ryuhei
  • Takahashi, Nobuyuki
  • Chiba, Kenta
  • Gemba, Daichi

Abstract

A coil device (100) is provided with a coil (110) and a chip capacitor (120). The coil (110) is formed by winding a coil wire (111). The chip capacitor (120) has an electrode surface (121a). The electrode surface (121a) is electrically connected to the coil (110). A connection part (111b) is a partial length region of the coil wire (111) drawn out from the coil (110). The connection part (111b) is directly connected to the electrode surface (121a).

IPC Classes  ?

  • H01F 27/00 - Details of transformers or inductances, in general
  • H01F 27/40 - Structural association with built-in electric component, e.g. fuse
  • H01G 4/40 - Structural combinations of fixed capacitors with other electric elements not covered by this subclass, the structure mainly consisting of a capacitor, e.g. RC combinations

57.

METHOD FOR CONTROLLING NUMBER OF ADIPOCYTES

      
Application Number JP2024006001
Publication Number 2024/214393
Status In Force
Filing Date 2024-02-20
Publication Date 2024-10-17
Owner
  • SUMIDA CORPORATION (Japan)
  • TOYO UNIVERSITY (Japan)
Inventor
  • Saito Masaki
  • Ohsako Masafumi
  • Suito Hirai

Abstract

[Problem] To control the number of adipocytes in a tissue of a living body. [Solution] Provided is a method including a step for applying electrical stimulation to a tissue of a living body by using a vector potential generator. According to this method for controlling the number of adipocytes, the number of adipocytes can be increased or decreased by the electrical stimulation in which the frequency of alternating current applied to the vector potential generator is controlled.

IPC Classes  ?

  • A61N 1/32 - Applying electric currents by contact electrodes alternating or intermittent currents

58.

METHOD FOR MANUFACTURING ELECTRONIC COMPONENT, ELECTRONIC COMPONENT, AND BUS BAR

      
Application Number JP2023013994
Publication Number 2024/209561
Status In Force
Filing Date 2023-04-04
Publication Date 2024-10-10
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Fukuchi, Takenori
  • Murakami, Hiroaki
  • Koyama, Ryoga

Abstract

The electronic component (100) comprises: a body portion that includes an electronic element; a bus bar (120) that is electrically connected to the electronic element; and a cover portion (130) that covers a part of an outer surface of the bus bar (120). The method for manufacturing the electronic component (100) comprises a molding step. In the molding step, a pressing member that has a pressing surface having ridges and valleys is used. In the molding step, the pressing member covers another portion of the outer surface so that the pressing surface comes into pressure contact with the other portion, and a cover member is disposed around the pressing member so that the cover portion is molded and the ridges and valleys are transferred to the other portion by bringing the pressing surface into pressure contact with the other portion, whereby a ridge-and-valley structure (123) is formed.

IPC Classes  ?

  • H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
  • H01R 43/16 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

59.

ELECTRONIC COMPONENT, ELECTRIC DEVICE, BUS BAR, METHOD FOR MANUFACTURING ELECTRONIC COMPONENT, AND METHOD FOR MANUFACTURING ELECTRIC DEVICE

      
Application Number JP2023013995
Publication Number 2024/209562
Status In Force
Filing Date 2023-04-04
Publication Date 2024-10-10
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Fukuchi, Takenori
  • Koyama, Ryoga
  • Ishii, Ryota
  • Hatano, Yusuke

Abstract

An electronic component (100) includes a main body (110) and a bus bar (120). The main body (110) includes an electronic element (111). The bus bar (120) is electrically connected to the electronic element (111). The bus bar (120) has a hole (121). The hole (121) opens at a contact surface (122). In the contact surface (122), an uneven region (122a) is formed. The uneven region (122a) has an uneven structure (123) around the hole (121).

IPC Classes  ?

  • H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members

60.

COIL COMPONENT

      
Application Number JP2023014433
Publication Number 2024/209691
Status In Force
Filing Date 2023-04-07
Publication Date 2024-10-10
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanaka, Kei
  • Moriya, Hitoshi
  • Murakami, Asami

Abstract

A coil component (100) comprises: a magnetic core (10) which is formed in an annular shape and which has a structure divided into a plurality of divided cores (11) in the circumferential direction; a coil (90) which is wound around the magnetic core (10); a body member (20) which holds the magnetic core (10); and a plurality of metal terminal members (80) to which the coil (90) is electrically connected. The body member (20) has, in an integral manner: a base part (30) to which the plurality of terminal members (80) are provided and on which the magnetic core (10) is disposed; a cover part (60) that covers the magnetic core (10); and a connection part (70) that connects the base part (30) and the cover part (60) to each other.

IPC Classes  ?

  • H01F 37/00 - Fixed inductances not covered by group
  • H01F 17/04 - Fixed inductances of the signal type with magnetic core
  • H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support

61.

POWER OUTPUT CIRCUIT

      
Application Number JP2023013855
Publication Number 2024/209518
Status In Force
Filing Date 2023-04-03
Publication Date 2024-10-10
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

[Problem] With regard to a power output circuit that uses resonance to generate sinusoidal power, to provide a circuit technology for varying the set frequency of output power. [Solution] A power output circuit (1) comprises: a primary-side circuit (10) including a series resonant circuit; a transformer (3); and a secondary-side circuit (20) that outputs sinusoidal power obtained from the primary-side circuit via the transformer. The power output circuit is capable of changing the set frequency of the outputted sinusoidal power. The primary-side circuit (10) includes: a resonant capacitor (11); a variable inductance circuit (12) capable of changing the inductance of a resonance coil (13); an inverter circuit (15) including a plurality of switching elements; a power control circuit (16) for controlling power supplied to the inverter circuit; and a frequency control circuit (17) for outputting, to the inverter circuit, a drive signal which is controlled to correspond to a change in resonance frequency of the series resonant circuit, the change accompanying a change in the inductance of the resonance coil.

IPC Classes  ?

  • H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC

62.

Electrical Stimulator

      
Application Number 18738304
Status Pending
Filing Date 2024-06-10
First Publication Date 2024-10-03
Owner SUMIDA CORPORATION (Japan)
Inventor Yoshii, Yoshiharu

Abstract

An electrical stimulator is provided including: a base wire configured with a core wire and an outer winding wire wound around the core wire with the core wire serving as a winding axis. The core wire is entirely coated by an insulating film, and an annulus is formed by spiraling or looping the base wire. One end of the core wire is electrically connected to one end of the outer winding wire. The other end of the core wire is connected to a first terminal of an external circuit. Further, the other end of the outer winding wire is connected to a second terminal of the external circuit. Thus, the annulus can apply an electrical stimulation to a living body.

IPC Classes  ?

  • A61N 1/20 - Applying electric currents by contact electrodes continuous direct currents
  • A61N 1/22 - Electromedical belts
  • A61N 1/32 - Applying electric currents by contact electrodes alternating or intermittent currents
  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers

63.

CURRENT SENSOR CIRCUIT

      
Application Number JP2023007734
Publication Number 2024/180751
Status In Force
Filing Date 2023-03-02
Publication Date 2024-09-06
Owner SUMIDA CORPORATION (Japan)
Inventor Miyazaki, Hiroyuki

Abstract

A current sensor circuit (1) comprises: a detection coil (N1) configured such that the inductance thereof changes by a direct current; a resonant capacitor (C1); a phase adjustment circuit (10) that receives a feedback signal from the resonant capacitor and outputs a drive signal; a switching circuit (20) that includes a plurality of switching elements (Q1, Q2) for forming a half-bridge circuit or a full-bridge circuit, and that causes the plurality of switching elements to perform a switching operation in accordance with the pulse period of the drive signal, thereby supplying an alternating-current signal to the detection coil and the resonant capacitor; a signal conversion circuit (40) that converts the drive signal output from the phase adjustment circuit into a detection signal indicating a change in the direct current; and a detection terminal (DCSIG) that outputs the detection signal to the outside.

IPC Classes  ?

  • G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

64.

ELECTRONIC COMPONENT

      
Application Number JP2023004955
Publication Number 2024/171288
Status In Force
Filing Date 2023-02-14
Publication Date 2024-08-22
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanaka, Kei
  • Murakami, Asami

Abstract

This electronic component (100) comprises a base portion (10) that has a housing portion (16) that houses an electronic element, and a terminal (30). The terminal (30) is partially embedded in the base portion (10), one end portion of the terminal (30) protruding from the base portion (10) toward the outside of the base portion (10). The base portion (10) has a cover portion (11). The cover portion (11) extends from an outer surface of the base portion (10), and covers at least a portion of the surrounding of a proximal end of said end portion of the terminal (30).

IPC Classes  ?

  • H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
  • H01F 27/02 - Casings
  • H01F 27/29 - TerminalsTapping arrangements
  • H05K 5/00 - Casings, cabinets or drawers for electric apparatus

65.

COIL PART

      
Application Number JP2023004980
Publication Number 2024/171296
Status In Force
Filing Date 2023-02-14
Publication Date 2024-08-22
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Tanifuji, Masami
  • Suzuki, Kaito
  • Ujiie, Tomomi

Abstract

This coil part comprises a base part (10), a terminal (20) that protrudes from the lower surface of the base part (10), and a coil that is electrically connected to the terminal (20). The lower surface of the base part (10) includes a lowermost part positioned the furthest downward, and a protruding surface (13a) positioned above the lowermost part. The terminal (20) has a buried part (21b), a protruding part (21a), a bending part, and a mounting part (25). The buried part (21b) is buried in the base part (10). The protruding part (21a) is continuous with the buried part (21b), protrudes downward from the protruding surface (13a), and is linear. The bending part is continuously bent from the protruding part (21a) toward the base part (10). The mounting part (25) is continuous from the bending part including a mounting surface (25a) that faces downward.

IPC Classes  ?

66.

Apparatus and method for grid-based virtual reality attraction

      
Application Number 17476865
Grant Number RE050071
Status In Force
Filing Date 2021-09-16
First Publication Date 2024-08-06
Grant Date 2024-08-06
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Gutierrez, Kalon Ross
  • Duncan, John Joseph
  • Griffin, Douglas
  • Schulze, Richard

Abstract

A comprehensive solution is provided to transforming locations and retail spaces into high-traffic virtual reality (VR) attractions that provide a VR experience blended with a real-world tactile experience. A grid-based stage and kit of fixed and moveable accessories suitable for a wide variety of commercial venues contain all of the necessary equipment, infrastructure, technology, and content to assemble and operate a tactile, on-site VR attraction. Utilizing a modular set of set design and physical props, the physical structure and layout of the installations are designed to be easily rearranged and adapted to new VR content without requiring extensive construction or specialized expertise.

IPC Classes  ?

  • A63G 33/00 - Devices allowing competitions between several persons, not otherwise provided for
  • A63F 9/02 - Shooting or hurling games
  • A63F 13/216 - Input arrangements for video game devices characterised by their sensors, purposes or types using geographical information, e.g. location of the game device or player using GPS
  • A63G 31/00 - Amusement arrangements
  • A63G 31/16 - Amusement arrangements creating illusions of travel
  • A63J 1/02 - SceneryCurtainsOther decorationsMeans for moving same
  • A63J 5/02 - Arrangements for making stage effectsAuxiliary stage appliances
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06T 19/00 - Manipulating 3D models or images for computer graphics
  • G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

67.

MEASUREMENT DEVICE AND MEASUREMENT METHOD

      
Application Number JP2023028771
Publication Number 2024/157500
Status In Force
Filing Date 2023-08-07
Publication Date 2024-08-02
Owner
  • SUMIDA CORPORATION (Japan)
  • KYOTO UNIVERSITY (Japan)
Inventor
  • Sako Akifumi
  • Yoshii Yoshiharu
  • Takemura Yuki
  • Mizuochi Norikazu
  • Nakamura Masaya

Abstract

A field being measured is applied to a measurement magnetic resonance member (1) but is not applied to a reference magnetic resonance member (1R). High-frequency magnetic field generators (2, 2R) perform an electron spin quantum operation for the measurement magnetic resonance member (1) and the reference magnetic resonance member (1R) using measurement microwave and reference microwave, respectively. A power divider (11a) distributes high-frequency current from a high-frequency power supply (11) to the high-frequency magnetic field generators (2, 2R). A light distributor (21) distributes excitation light from a light emitting device (12) to the measurement magnetic resonance member (1) and the reference magnetic resonance member (1R). Light receiving devices (13, 13R) receive fluorescent light from the measurement magnetic resonance member (1) and the reference magnetic resonance member (1R), respectively, and generate fluorescent light sensor signals, respectively. An arithmetic processing unit (30) derives a measurement value on the basis of the fluorescent light sensor signals.

IPC Classes  ?

  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
  • G01N 21/64 - FluorescencePhosphorescence
  • G01N 24/00 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
  • G01R 33/032 - Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday

68.

MAGNETIC FIELD MEASUREMENT APPARATUS AND MAGNETIC FIELD MEASUREMENT METHOD

      
Application Number 18560882
Status Pending
Filing Date 2022-06-07
First Publication Date 2024-08-01
Owner
  • SUMIDA CORPORATION (Japan)
  • Kyoto University (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Ootsuka, Tsutomu
  • Hamada, Shingo
  • Mizuochi, Norikazu
  • Takemura, Yuki

Abstract

A high-frequency magnetic field generator 2 applies microwave to a magnetic resonance member 1. A magnet 3 applies a static magnetic field to the magnetic resonance member 1. An irradiating device 12 irradiates the magnetic resonance member 1 with incident light of a specific wavelength. An FT 4 senses a measurement target magnetic field using a primary coil 4a and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member 1 using a secondary coil 4b. A pillar-shaped light guide member 41 guides the incident light to the magnetic resonance member 1, and a pillar-shaped light guide member 42 guides fluorescence that the magnetic resonance member 1 emits from the magnetic resonance member 1. Further, the magnetic resonance member 1 is arranged between an end surface of the light guide member 41 and an end surface of the light guide member 42 in a hollow part of the secondary coil 4b of the FT 4 and in a hollow part of the aforementioned magnet 3.

IPC Classes  ?

  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
  • G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver

69.

Magnetic field measurement apparatus and magnetic field measurement method

      
Application Number 18560860
Grant Number 12379428
Status In Force
Filing Date 2022-03-08
First Publication Date 2024-08-01
Grant Date 2025-08-05
Owner
  • SUMIDA CORPORATION (Japan)
  • Kyoto University (Japan)
Inventor
  • Hamada, Shingo
  • Otsuka, Tsutomu
  • Yoshii, Yoshiharu
  • Mizuochi, Norikazu
  • Takemura, Yuki

Abstract

b of the flux transformer 4 and in a hollow part of the magnet 3.

IPC Classes  ?

  • G01R 33/00 - Arrangements or instruments for measuring magnetic variables
  • G01R 33/383 - Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
  • G01R 33/60 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance using electron paramagnetic resonance

70.

VECTOR POTENTIAL COIL DEVICE, VECTOR POTENTIAL GENERATION DEVICE, AND THERAPEUTIC DEVICE

      
Application Number JP2023030578
Publication Number 2024/150460
Status In Force
Filing Date 2023-08-24
Publication Date 2024-07-18
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Saito Masaki
  • Daibo Masahiro

Abstract

A vector potential coil device (1) includes: a layered conductive member (11) that is spiral roll-shaped; a first end surface (11a) on the inner circumferential side of the roll of the layered conductive member (11); and a second end surface (11b) on the outer circumferential side of the roll of the layered conductive member, wherein a power supply device (2) conducts a current to the layered conductive member (11) via the first end surface (11a) and second end surface (11b) to generate a vector potential in the layered conductive member (11).

IPC Classes  ?

  • A61N 2/04 - Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets using variable fields, e.g. low frequency or pulsating fields

71.

DEVICE FOR PROMOTING MUSCLE FIBER FORMATION AND METHOD FOR PROMOTING MUSCLE FIBER FORMATION

      
Application Number JP2023030573
Publication Number 2024/150459
Status In Force
Filing Date 2023-08-24
Publication Date 2024-07-18
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Detmod Thitaporn
  • Daibo Masahiro

Abstract

A bioreactor (10) has a housing space 101 in which muscle fiber is formed with specific cells using a culture medium. A VP coil (11) is provided to the housing space (101) of the bioreactor (10) and/or the outside of the of the bioreactor. A power supply device (2) allows a current to pass through the VP coil (11), generates a vector potential corresponding to the current in the housing space (101), and applies an electric field, which is generated on the basis of the vector potential, to the specific cells and/or the culture medium to thereby electrically stimulate the specific cells.

IPC Classes  ?

  • C12N 5/077 - Mesenchymal cells, e.g. bone cells, cartilage cells, marrow stromal cells, fat cells or muscle cells
  • C12M 1/00 - Apparatus for enzymology or microbiology
  • C12M 1/42 - Apparatus for the treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic wave

72.

Electronic Component And Method For Manufacturing Electronic Component

      
Application Number 18535085
Status Pending
Filing Date 2023-12-11
First Publication Date 2024-07-11
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Sakamoto, Shinichi
  • Cheng, Zhigang
  • Chan Mock, Fernando
  • Kawarai, Mitsugu

Abstract

An electronic component comprises: a magnetic core having a flat base and a core, the flat base having a top, a bottom, and first and second opposite sides, the core is on the top; a winding having an edgewise coil including a wound flat wire and the core, the winding having two non-wound flat wires extending therefrom; and a magnetic exterior body covering the core and the edgewise coil. The two non-wound flat wires extend along the top, the first side, the bottom and then the second side, and the two non-wound flat wires are non-adhesively positioned around the flat base. The two non-wound flat wires on the bottom are externally exposed electrodes. The second side inclines towards the core. The two ends of the two non-wound flat wires are embedded into the magnetic exterior body to fix the two non-wound flat wires to the magnetic exterior body.

IPC Classes  ?

  • H01F 27/28 - CoilsWindingsConductive connections
  • H01F 27/24 - Magnetic cores
  • H01F 27/29 - TerminalsTapping arrangements
  • H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
  • H01F 41/061 - Winding flat conductive wires or sheets

73.

ELECTRONIC COMPONENT HOLDING TOOL SET FOR VEHICLE AND ELECTRONIC COMPONENT HOLDING TOOL FOR VEHICLE

      
Application Number JP2022046639
Publication Number 2024/134715
Status In Force
Filing Date 2022-12-19
Publication Date 2024-06-27
Owner SUMIDA CORPORATION (Japan)
Inventor Iwasaki, Noriaki

Abstract

This electronic component holding tool set for a vehicle includes a shaft member (210) having a circular cross-section, and an electronic component holding tool for a vehicle. The electronic component holding tool for a vehicle has a base part (10) provided with an attachment hole into which the shaft member (210) is inserted. The base part (10) has a protruding section (14a1) that protrudes toward the inside of the attachment hole from a circumferential wall (14) that defines the attachment hole. The distance between the protruding section (14a1) and the center of the attachment hole is less than the radius of the shaft member (210) when viewed from the depth direction of the attachment hole (12). When the shaft member (210) is inserted into the attachment hole, the protruding section (14a1) is in pressure contact with the side surface of the shaft member (210).

IPC Classes  ?

  • B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric

74.

ELECTRICAL STIMULATION VECTOR-POTENTIAL COIL DEVICE USED IN OPHTHALMOLOGICAL TREATMENT

      
Application Number JP2023026195
Publication Number 2024/127700
Status In Force
Filing Date 2023-07-18
Publication Date 2024-06-20
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Terao Kenji
  • Saito Masaki
  • Arakaki Yosuke
  • Daibo Masahiro

Abstract

A vector-potential coil (11) has a vector potential and is a solenoid coil that extends along a coil axis which is curved. A ferromagnetic body member (11A) extends inside the solenoid coil along the coil axis thereof. A power-source device causes the vector-potential coil (11) to conduct current. The vector-potential coil (11) and the ferromagnetic body member (11A) have an opening in the circumferential direction.

IPC Classes  ?

  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
  • A61N 1/40 - Applying electric fields by inductive or capacitive coupling
  • H01F 5/00 - Coils
  • H01F 5/02 - Coils wound on non-magnetic supports, e.g. formers
  • A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
  • A61F 9/007 - Methods or devices for eye surgery

75.

VECTOR POTENTIAL COIL DEVICE FOR APPLYING ELECTRICAL STIMULUS TO SKIN

      
Application Number JP2023026194
Publication Number 2024/111162
Status In Force
Filing Date 2023-07-18
Publication Date 2024-05-30
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Terao Kenji
  • Saito Masaki
  • Daibo Masahiro

Abstract

A supporting unit (10) is provided with a housing space (101) in which skin of a living organism is placed. In a vector potential coil device (1), a vector potential coil is disposed in at least one of the housing space (101) of the supporting unit (10) and the outside of the housing space (101). A power supply unit (2) allows an alternating current to pass through the vector potential coil to generate a vector potential corresponding to the alternating current in the housing space (101), and applies an electrical field generated on the basis of the vector potential to skin of a living organism to apply an electrical stimulus to the skin.

IPC Classes  ?

  • A61N 1/04 - Electrodes
  • A61N 1/06 - Electrodes for high-frequency therapy
  • A61N 1/32 - Applying electric currents by contact electrodes alternating or intermittent currents
  • A61N 1/40 - Applying electric fields by inductive or capacitive coupling
  • H01F 5/00 - Coils

76.

INDUCTOR

      
Application Number JP2022041685
Publication Number 2024/100792
Status In Force
Filing Date 2022-11-09
Publication Date 2024-05-16
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Kajiyama, Tomohiro
  • Oki, Juichi

Abstract

An inductor (100) comprises: a coil (20); a core (30) that contains the coil (20); a pair of terminals (40) that are electrically connected to the coil (20); and a conductor shield (10) that covers a surface of the core (30). The conductor shield (10) covers a top surface of the core (30) or at least a portion of side surfaces thereof. The conductor shield (10) and one terminal of the pair of terminals (40) are electrically connected directly to each other. Further, the conductor shield (10) and the other terminal are electrically connected indirectly to each other via the coil (20).

IPC Classes  ?

  • H01F 27/36 - Electric or magnetic shields or screens

77.

MAGNETIC FIELD MEASUREMENT DEVICE

      
Application Number JP2023039837
Publication Number 2024/080386
Status In Force
Filing Date 2023-11-06
Publication Date 2024-04-18
Owner
  • SUMIDA CORPORATION (Japan)
  • KYOTO UNIVERSITY (Japan)
Inventor
  • Yoshii Yoshiharu
  • Hamada Shingo
  • Sako Akifumi
  • Takemura Yuki
  • Mizuochi Norikazu

Abstract

Microwaves from a high-frequency magnetic field generator (2) and a static magnetic field from a magnet (3) are applied to a magnetic resonance member (1). An FT (4) uses a primary-side coil (4a) to sense a magnetic field to be measured and uses a secondary-side coil (4b) to apply an applied magnetic field corresponding to the sensed magnetic field to be measured to the magnetic resonance member (1). A light guide member (41) guides incident light of a specific wavelength to the magnetic resonance member (1), and a light guide member (42) guides fluorescence generated by the magnetic resonance member (1) from the magnetic resonance member (1). The magnetic resonance member (1) is disposed in a hollow section of the secondary-side coil (4b) of the FT (4) and in a hollow section of the magnet (3) so as to be sandwiched between an end surface of the light guide member (41) and an end surface of the light guide member (42). In addition, the secondary-side coil (4b) is a bobbinless coil.

IPC Classes  ?

  • G01R 33/20 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance
  • G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping

78.

ANTENNA DEVICE AND METHOD FOR MANUFACTURING ANTENNA DEVICE

      
Application Number JP2022036453
Publication Number 2024/069857
Status In Force
Filing Date 2022-09-29
Publication Date 2024-04-04
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Hata, Ryuhei
  • Takahashi, Nobuyuki
  • Gemba, Daichi
  • Morita, Junji
  • Tanita, Tomoya

Abstract

This method for manufacturing an antenna device (100) includes a melting step and a removal step. The antenna device (100) comprises: an antenna section (20) on which is wound a coil wire (40) having a coil core (47) covered by an insulation film (46); and a base (30) having a pad section (331) for which a portion of the coil wire (40) is soldered using a brazing filler material (50). In the melting step, a laser is radiated on the brazing filler material (50) supplied onto the pad section (331), melting the brazing filler material (50). In the removal step, the coil wire (40) is immersed in the melted brazing filler material (50) and a portion of the insulation film (46) is removed from the coil wire (40), and the coil wire (40) and the pad section (331) are joined by the brazing filler material (50).

IPC Classes  ?

  • H01P 11/00 - Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
  • H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

79.

COIL COMPONENT

      
Application Number JP2022036702
Publication Number 2024/069928
Status In Force
Filing Date 2022-09-30
Publication Date 2024-04-04
Owner SUMIDA CORPORATION (Japan)
Inventor Kawarai, Mitsugu

Abstract

A coil component (1) includes: a coil (3); a magnetic core (2) accommodated inside the coil (3); and a fixing means (winding end (3b)) for fixing the magnetic core (2) to the coil (3) such that the magnetic core (2) is positioned inside the coil (3) in the axial direction. The coil (3) is constituted of a winding (3a) that extends in a spiral shape. The magnetic core (2) has high magnetic permeability and is accommodated inside a central core portion (3c), which is the inside of the coil (3).

IPC Classes  ?

  • H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support

80.

ELECTRONIC COMPONENT AND METHOD FOR HOLDING CONDUCTING WIRE END PART

      
Application Number JP2022035185
Publication Number 2024/062557
Status In Force
Filing Date 2022-09-21
Publication Date 2024-03-28
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Moriya Hitoshi
  • Morimoto Yasunori
  • Ishii Ryota
  • Chiba Kenta
  • Kosai Ryuta

Abstract

An electronic component (coil component (1)) comprises a conductive conducting wire (3a) and a conductive member (5) that has a bent terminal (6) which holds an end part of the conducting wire (3a). The bent terminal (6) is provided with a base portion (6a) that supports the conducting wire (3a), a fold portion (6b) that is continuous from one end side of the base portion (6a) and that is bent and folded back, and a bend portion (6c) that is continuous from the fold portion (6b) and that is provided to the tip end side, which is the opposite side from the base portion (6a). The conducting wire (3a) is sandwiched between the base portion (6a) and the fold portion (6b) or the bend portion (6c). The bend portion (6c) is bent toward the base portion (6a) more than a direction tangential to the fold portion (6b), and the gap between the bend portion (6c) and the base portion (6a) is smaller than the width of the conducting wire (3a).

IPC Classes  ?

  • H01R 4/16 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by bending
  • H01R 43/04 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool

81.

BOBBIN FOR COIL DEVICE, COIL DEVICE, AND ASSEMBLY METHOD FOR COIL DEVICE

      
Application Number JP2022032562
Publication Number 2024/047739
Status In Force
Filing Date 2022-08-30
Publication Date 2024-03-07
Owner SUMIDA CORPORATION (Japan)
Inventor Yamaguchi Takayuki

Abstract

A bobbin for a coil device according to the present invention is for use in a coil device formed by winding a coil around the outer circumference of a magnetic core part of a magnetic core. The bobbin comprises a cylindrical bobbin (a second bobbin) 20 that has: an inside bobbin body 20A that comprises a cylindrical insulating member into which the magnetic core part of the magnetic core is inserted and protruding intermittent wall parts 21 that extend linearly over the outer circumferential surface of the cylindrical insulating member in the circumferential direction of the outer circumferential surface; a pipe (a second pipe) 41 that, guided by the intermittent wall parts 21, is wound onto the outer circumferential surface of the cylindrical insulating member; and an insulating outside bobbin body 20B that overmolds and thereby sandwiches the pipe (the second pipe) 41 with the inside bobbin body 20A.

IPC Classes  ?

  • H01F 5/02 - Coils wound on non-magnetic supports, e.g. formers

82.

TRANSFORMER, BOBBIN SET, AND METHOD FOR MANUFACTURING TRANSFORMER

      
Application Number JP2022031877
Publication Number 2024/042637
Status In Force
Filing Date 2022-08-24
Publication Date 2024-02-29
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Yanai Yosuke
  • Kuriki Hiromitsu

Abstract

This transformer (100) comprises: a bobbin (30) that extends in a winding axis direction; a first coil (11); a second coil (12); an interlayer tape (50); and one or more creepage surface tapes (60). The first coil (11) is wound inside among multiple coils (10) wound in layers about the bobbin (30). The second coil (12) is wound outside of the first coil (11). The interlayer tape (50) is wound between the first coil (11) and the second coil (12). The creepage surface tapes (60), when viewed in the winding axis direction, are wound outside of the first coil (11) or the second coil (12). At least some of the creepage surface tapes (60) and the interlayer tape (50) serve as an insulating tape (40) that is a single member.

IPC Classes  ?

83.

MEASUREMENT DEVICE AND MEASUREMENT METHOD

      
Application Number JP2023014755
Publication Number 2024/024181
Status In Force
Filing Date 2023-04-11
Publication Date 2024-02-01
Owner
  • SUMIDA CORPORATION (Japan)
  • KYOTO UNIVERSITY (Japan)
Inventor
  • Yoshii Yoshiharu
  • Sako Akifumi
  • Takemura Yuki
  • Mizuochi Norikazu

Abstract

A light receiving device 13 receives the fluorescence emitted from a magnetic resonance member 1 in response to excitation light and generates a fluorescence sensor signal corresponding to the fluorescence intensity, and an arithmetic processing unit 31 derives a measurement value on the basis of the fluorescence sensor signal or a detection signal obtained from the fluorescence sensor signal. By using a measurement value when a field to be measured is applied to the magnetic resonance member 1 as a main measurement value, using a measurement value that is measured before the measurement of the main measurement value when the field to be measured is not applied to the magnetic resonance member 1 as a pre-stage measurement value, and using a measurement value that is measured after the measurement of the main measurement value when the field to be measured is not applied to the magnetic resonance member as a post-stage measurement value, the arithmetic processing unit 31 subtracts the pre-stage measurement value and the post-stage measurement value from the main measurement value at a predetermined ratio, respectively, to derive the measurement value of the field to be measured.

IPC Classes  ?

  • G01N 24/00 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
  • G01R 33/20 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance
  • G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping

84.

COIL BOBBIN, COIL COMPONENT, AND METHOD FOR MANUFACTURING COIL BOBBIN

      
Application Number JP2022028337
Publication Number 2024/018588
Status In Force
Filing Date 2022-07-21
Publication Date 2024-01-25
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Yanai Yosuke
  • Kuriki Hiromitsu

Abstract

A coil bobbin (10) comprises: a winding (120); a first bobbin (111); and a second bobbin (112). The first bobbin (111) and the second bobbin (112) are arranged side by side such that the axial directions are aligned with each other. The winding (120) is wound on the first bobbin (111) and the second bobbin (112) in a continuous manner, and is passed from the first bobbin (111) through an internal space (130), which is held between the first bobbin (111) and the second bobbin (112) arranged side by side, to the second bobbin (112). In addition, the winding (120) has a slacking part (121) in the internal space (130).

IPC Classes  ?

85.

INDUCTOR, CORE SET, AND METHOD FOR MANUFACTURING INDUCTOR

      
Application Number JP2022026734
Publication Number 2024/009405
Status In Force
Filing Date 2022-07-05
Publication Date 2024-01-11
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Sasaki, Rannosuke
  • Yanai, Yosuke

Abstract

A gap material (40) is disposed between a first core (10) and a second core (20), and separates the first core (10) and the second core (20) from each other. An adhesive (50) is applied between the first core (10) and the second core (20). Both ends of a conductor (30) extend out from a groove (11), and are respectively arranged along first and second opposing lateral surfaces of the first core (10). The distance between the first lateral surface and the adhesive (50) when viewed in the extending direction of the groove (11) is equal to or less than that between the second lateral surface and the adhesive (50). The gap material (40) is disposed between the adhesive (50) and the first lateral surface when viewed in the extending direction of the groove (11).

IPC Classes  ?

  • H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
  • H01F 27/24 - Magnetic cores
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

86.

ANTENNA DEVICE

      
Application Number JP2022026005
Publication Number 2024/004088
Status In Force
Filing Date 2022-06-29
Publication Date 2024-01-04
Owner SUMIDA CORPORATION (Japan)
Inventor Iwasaki, Noriaki

Abstract

This antenna device comprises a base (4b) that has a mounting unit (land (16a)), and a chip electronic component (capacitor chip (12)). The land (16a) has at least a pair of mounting terminals (16c) for mounting the capacitor chip (12). The base (4b) has uneven sections (20) formed at edge portions (4g) of an opening (4e). The uneven sections (20) are each configured by a recess section (21) and a protruding section (22) that respectively protrude from and are recessed into the edge portions (4g) of the opening (4e) in the direction in which the mounting terminals (16c) that form a pair are aligned. The protruding sections (22) demarcate mounting spaces at positions where at least a pair of terminals (12a) of the capacitor chip (12) face the mounting terminals (16c) that form a pair.

IPC Classes  ?

  • H01Q 7/06 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
  • H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering

87.

MOVING BODY POWER SUPPLY SYSTEM AND MOVING BODY DEVICE

      
Application Number JP2023013839
Publication Number 2023/248574
Status In Force
Filing Date 2023-04-03
Publication Date 2023-12-28
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Kaneko Tsunaki
  • Saito Masaki
  • Detmod Thitaporn
  • Terao Kenji
  • Daibo Masahiro
  • Sato Asahi

Abstract

AC current conducts through a primary conductor 1. A moving body device (for example, a vehicle 101) comprises a vector-potential coil 2. The vector-potential coil 2 wirelessly senses a vector potential generated by the AC current conducting through the primary conductor 1 and causes the current induced by the vector potential to conduct. The primary conductor 1 is a part or whole of a conducting wire continuously disposed along a transfer path (for example, a road 102) for the moving body device. When the moving body device (for example, the vehicle 101) is on the transfer path (for example, the road 102), the vector-potential coil 2 continuously and wirelessly senses the vector potential and causes the current to conduct.

IPC Classes  ?

  • H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
  • B60L 5/00 - Current-collectors for power supply lines of electrically-propelled vehicles
  • B60L 53/12 - Inductive energy transfer
  • B60L 53/67 - Controlling two or more charging stations
  • B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
  • H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

88.

VECTOR POTENTIAL GENERATION DEVICE, VECTOR POTENTIAL COIL ARRANGEMENT METHOD, VECTOR POTENTIAL TRANSFORMER, AND CONTACTLESS POWER FEED SYSTEM

      
Application Number JP2023014505
Publication Number 2023/248580
Status In Force
Filing Date 2023-04-10
Publication Date 2023-12-28
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Daibo Masahiro
  • Sato Asahi
  • Kaneko Tsunaki
  • Saito Masaki
  • Detmod Thitaporn
  • Terao Kenji
  • Yoshii Yoshiharu

Abstract

In the present invention, a vector potential coil 11 is a vector potential coil constituting a solenoid coil extending along a curved coil axis. Inside the solenoid coil, a ferromagnetic body member 11A extends along the coil axis. A power supply device causes the vector potential coil 11 to conduct a current. Furthermore, the vector potential coil 11 and the ferromagnetic member 11A provide an opening 14 in a circumferential direction.

IPC Classes  ?

  • H01F 5/00 - Coils
  • A61N 2/04 - Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets using variable fields, e.g. low frequency or pulsating fields
  • H01F 27/28 - CoilsWindingsConductive connections
  • H01F 30/10 - Single-phase transformers
  • H01F 38/14 - Inductive couplings

89.

DEVICE FOR PROMOTING ALGA GROWTH

      
Application Number JP2023013589
Publication Number 2023/238486
Status In Force
Filing Date 2023-03-31
Publication Date 2023-12-14
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Kaneko Tsunaki
  • Saito Masaki
  • Detmod Thitaporn
  • Terao Kenji
  • Sato Asahi
  • Daibo Masahiro

Abstract

A bioreactor 10 has a housing space 101 that holds a liquid containing a specific alga. A vector potential coil of a vector potential coil device 1 is disposed in at least one of the housing space 101 and outside of the bioreactor 10. A power supply device 2 allows an alternating current to pass through the vector potential coil, generates a vector potential corresponding to the alternating current in the housing space 101, and applies an electric field, which is generated on the basis of the vector potential, to the liquid to thereby electrically stimulate the alga.

IPC Classes  ?

  • C12N 1/12 - Unicellular algaeCulture media therefor
  • C12M 1/00 - Apparatus for enzymology or microbiology

90.

LOW-PROFILE TRANSFORMER AND METHOD FOR PRODUCING SAME

      
Application Number JP2022019736
Publication Number 2023/218510
Status In Force
Filing Date 2022-05-09
Publication Date 2023-11-16
Owner SUMIDA CORPORATION (Japan)
Inventor Yoda Toshiyasu

Abstract

Provided are: a low-profile transformer which is equipped with a plurality of cylindrical secondary coils and is capable of being more compact and having a lower product height in comparison to the prior art; and a method for producing the same. Thus, a transformer equipped with a primary coil 34 which is wound around the outer circumference of the center legs 4c, 6c of first and second cores 4, 6 which constitute a magnetic core, and also equipped on the outer circumference thereof with cylindrical secondary coils 22, 24 which are concentrically arranged relative to one another and also relative to the primary coil 34, wherein: the cylindrical secondary coils 22, 24 are provided with cylindrical secondary coil main body sections 22d, 24d which encircle and sandwich slits 22c, 24c therebetween, and terminal units 22a, b, 24a, b which each extend toward the outside from a region near the end section of the cylindrical secondary coil main body sections, which face one another with the slits 22c, 24c sandwiched therebetween; and the cylindrical secondary coils 22, 24 are positioned in a manner such that there is overlap between one of the terminal units 22a, 24a in each of said coils, and there is no contact between the other of the terminal units 22b, 24b in each of said coils.

IPC Classes  ?

91.

CARGO CONTAINER AND CARGO CONTAINER MANAGEMENT SYSTEM

      
Application Number JP2023013584
Publication Number 2023/214489
Status In Force
Filing Date 2023-03-31
Publication Date 2023-11-09
Owner
  • SUMIDA CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY (Japan)
Inventor
  • Kaneko Tsunaki
  • Saito Masaki
  • Detmod Thitaporn
  • Terao Kenji
  • Daibo Masahiro
  • Sato Asahi

Abstract

In a cargo container 1, a vector-potential coil 11 senses, in a non-contact manner, a vector potential generated by AC current flowing through a trolley wire 4 or a rail 5 of a railway and causes the current induced by the vector potential to flow, and a power supply device 14 supplies power to an electronic device on the basis of the current induced in the vector potential coil 11.

IPC Classes  ?

  • H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
  • B65D 88/12 - Large containers rigid specially adapted for transport
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

92.

SURFACE MOUNT COIL COMPONENT

      
Application Number JP2022015643
Publication Number 2023/188028
Status In Force
Filing Date 2022-03-29
Publication Date 2023-10-05
Owner SUMIDA CORPORATION (Japan)
Inventor Hatakeyama, Takeshi

Abstract

Provided is a surface mount coil component (surface mount transformer 1) comprising: a winding wire (3) with a lead portion (3a); an insulating bobbin (2) with a winding shaft portion for the winding wire (3); a plurality of mounting terminals (4) protruding from the bobbin (2); and a plurality of entangling terminals (5 (6, 7)) which are formed from the same member as each of the mounting terminals (4) and which are used to entangle the lead portion (3a) of the winding wire. A plurality of adjacent entangling terminals (6, 7) are bent with respect to the direction of protrusion from the bobbin (2). The lead portion (3a) is entangled on the bent portions of the entangling terminals (5, (6, 7)).

IPC Classes  ?

93.

REACTOR BOBBIN AND REACTOR DEVICE

      
Application Number JP2022015442
Publication Number 2023/187984
Status In Force
Filing Date 2022-03-29
Publication Date 2023-10-05
Owner SUMIDA CORPORATION (Japan)
Inventor Kawashima Hiroshi

Abstract

[Problem] To provide a reactor bobbin and a reactor device with which it is possible to simply and quickly perform position adjustment of a bobbin flange portion when the bobbin flange portion and a bobbin are engaged with each other with the flange portion being matched with a coil length. [Solution] At least one flange portion is a movable flange portion 123 which is a separate body from a body portion (hereafter, bobbin shaft portion) 121. The movable flange portion 123 has a central hollow portion (124) into which an end of the bobbin shaft portion 121 can be fitted and inserted. A recess row 127 is provided on at least a partial outer surface of the bobbin shaft portion 121, the recess row 127 having a plurality of engagement recesses (hereafter, recesses) 126 arrayed therein in the axial direction of the bobbin shaft portion 121, and the movable flange portion 123 is provided with an engaging projection 125 that selectively engages with one of the recesses 126 in the recess row 127. In a state in which the movable flange portion 123 has been moved to a desired position of the bobbin shaft portion 121, one of the recesses 126 in the recess row 127 and the engaging projection 125 of the movable flange portion 123 are configured to engage with each other.

IPC Classes  ?

  • H01F 5/02 - Coils wound on non-magnetic supports, e.g. formers
  • H01F 37/00 - Fixed inductances not covered by group

94.

MAGNETIC COUPLING INDUCTOR AND ASSEMBLY METHOD THEREFOR

      
Application Number JP2022015627
Publication Number 2023/188026
Status In Force
Filing Date 2022-03-29
Publication Date 2023-10-05
Owner SUMIDA CORPORATION (Japan)
Inventor Fujimaki Takanari

Abstract

[Problem] In a magnetic coupling inductor in which two installed inductors are caused to operate in interleave, to facilitate adjustment of a leakage inductance value and, in such adjustment, to ensure the dimensional accuracy of terminal pin intervals of both terminal blocks and the rigidity of a winding shaft part of a bobbin. [Solution] The present invention comprises a ring-shaped spacer member 5 which is split in the circumferential direction and attached to a bobbin 4 in a circumferential direction of a winding shaft part (42) through which a middle leg part (11, 21) is inserted. The spacer member comprises: a cylinder section (5C) on which an annular third core 3 (3A, 3B) is placed; and flange sections 5A, 5B provided at both ends thereof. The third core 3 is split in the circumferential direction and mounted on the outer periphery of the cylinder section (5C) of the spacer member 5 in a state in which, of elements of the shape of the third core 3 and the material characteristic of the third core 3, the magnitude of at least one of the elements is set so that a desired leakage inductance value is generated.

IPC Classes  ?

  • H01F 5/02 - Coils wound on non-magnetic supports, e.g. formers
  • H01F 38/08 - High-leakage transformers or inductances
  • H01F 38/10 - Ballasts, e.g. for discharge lamps
  • H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
  • H01F 27/32 - Insulating of coils, windings, or parts thereof

95.

Method For Treating Living Body Using Electrical Stimulator

      
Application Number 18169319
Status Pending
Filing Date 2023-02-15
First Publication Date 2023-08-31
Owner
  • SUMIDA CORPORATION (Japan)
  • TOYO UNIVERSITY (Japan)
Inventor
  • Kaneko, Tsunaki
  • Saito, Masaki
  • Detmod, Thitaporn
  • Terao, Kenji
  • Ohsako, Masafumi
  • Zeng, Xueqian

Abstract

Provided is a method for treating a living body using an electrical stimulator including a base wire having a core wire and an outer winding wire wound around the core wire. An annulus is formed by winding the base wire in a loop shape. A first end of the core wire is electrically connected to a first end of the outer winding wire. A second end of the core wire is connected to a first terminal of an external circuit. A second end of the outer winding wire is connected to a second terminal of the external circuit. The method includes holding the living body or a part of the living body of a subject in the annulus and generating an alternating current in the external circuit for a therapeutically effective time period to apply an electrical stimulation to the living body or the part of the living body.

IPC Classes  ?

  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers

96.

High-frequency magnetic field generating device

      
Application Number 18306109
Grant Number 12248049
Status In Force
Filing Date 2023-04-24
First Publication Date 2023-08-17
Grant Date 2025-03-11
Owner SUMIDA CORPORATION (Japan)
Inventor
  • Yoshii, Yoshiharu
  • Saito, Masaki
  • Mizuochi, Norikazu
  • Hayashi, Kan

Abstract

A high-frequency magnetic field generating device includes two coils arranged with a predetermined gap in parallel with each other, the two coils (a) in between which electron spin resonance material is arranged or (b) arranged at one side from electron spin resonance material; a high-frequency power supply that generates microwave current that flows in the two coils; and a transmission line part connected to the two coils, that sets a current distribution so as to locate the two coils at positions other than a node of a stationary wave.

IPC Classes  ?

  • G01R 33/60 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance using electron paramagnetic resonance
  • G01N 24/10 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using electron paramagnetic resonance
  • G01R 33/032 - Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday
  • G01R 33/12 - Measuring magnetic properties of articles or specimens of solids or fluids
  • G01R 33/32 - Excitation or detection systems, e.g. using radiofrequency signals
  • G01R 33/34 - Constructional details, e.g. resonators
  • G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver

97.

Coil component

      
Application Number 29781296
Grant Number D0995430
Status In Force
Filing Date 2021-04-29
First Publication Date 2023-08-15
Grant Date 2023-08-15
Owner SUMIDA CORPORATION (USA)
Inventor Moriya, Hitoshi

98.

Core

      
Application Number 29781315
Grant Number D0995433
Status In Force
Filing Date 2021-04-29
First Publication Date 2023-08-15
Grant Date 2023-08-15
Owner SUMIDA CORPORATION (USA)
Inventor Moriya, Hitoshi

99.

Coil component

      
Application Number 29781301
Grant Number D0995431
Status In Force
Filing Date 2021-04-29
First Publication Date 2023-08-15
Grant Date 2023-08-15
Owner SUMIDA CORPORATION (USA)
Inventor Moriya, Hitoshi

100.

Core component

      
Application Number 29781310
Grant Number D0995432
Status In Force
Filing Date 2021-04-29
First Publication Date 2023-08-15
Grant Date 2023-08-15
Owner SUMIDA CORPORATION (USA)
Inventor Moriya, Hitoshi
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