Hitachi, Ltd.

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IPC Class
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures 2
G06F 21/55 - Detecting local intrusion or implementing counter-measures 2
B01D 11/02 - Solvent extraction of solids 1
B01D 12/00 - Displacing liquid, e.g. from wet solids or from dispersions of liquids or from solids in liquids, by means of another liquid 1
B01D 15/00 - Separating processes involving the treatment of liquids with solid sorbentsApparatus therefor 1
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Found results for  patents

1.

DESIGN SUPPORT DEVICE AND DESIGN SUPPORT SYSTEM

      
Document Number 03299559
Status Pending
Filing Date 2026-01-22
Open to Public Date 2026-09-21
Owner
  • HITACHI, LTD. (Japan)
  • HITACHI GE VERNOVA NUCLEAR ENERGY, LTD. (Japan)
Inventor
  • Hosokawa, Yuji
  • Ishida, Kazuya
  • Osaka, Masaaki
  • Ishiwatari, Yuki
  • Konishi, Wataru

Abstract

A design support device of the present invention includes: a virtual space creation unit which creates image data of a virtual space simulating a site of a design target; a penetration creation support unit which has a function of creating a penetration for a penetration formation target portion in the virtual space, and is capable of creating image data of an installation area image in which an image of an area where the penetration is formable is superimposed on an image of the penetration formation target portion in the virtual space in a case where information regarding a design specification of the penetration to be created in the penetration formation target portion is acquired from an external device; and a communication unit which is communicably connected to the external device, receives information regarding a design specification of the penetration from the external device, and transmits image data of the installation area image created by the penetration creation support unit to the external device.

IPC Classes  ?

  • G06F 30/10 - Geometric CAD
  • G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
  • G06F 30/20 - Design optimisation, verification or simulation

2.

VIRTUALIZATION SYSTEM AND CONTROL METHOD FOR VIRTUALIZATION SYSTEM

      
Document Number 03319488
Status Pending
Filing Date 2024-07-29
Open to Public Date 2026-09-21
Owner HITACHI, LTD. (Japan)
Inventor
  • Ono, Tatsuya
  • Ogawa, Masaaki

Abstract

A control server according to one aspect of the present invention includes an application computing core resource definition file in which correspondence between a plurality of applications to be operated in a container and virtual computing core numbers is defined, a physical-virtual computing core mapping generation unit that performs mapping between a physical computing core number allocated to a container and a virtual computing core number associated with an application, and an application operating computing core setting unit that fixedly associates an application to be started and a physical computing core number of an operating computing core based on information of the mapping and information described in the application computing core resource definition file.

IPC Classes  ?

  • G06F 9/50 - Allocation of resources, e.g. of the central processing unit [CPU]

3.

VIRTUALIZATION SYSTEM AND CONTROL METHOD FOR VIRTUALIZATION SYSTEM

      
Document Number 03318208
Status Pending
Filing Date 2024-07-29
Open to Public Date 2026-09-21
Owner HITACHI, LTD. (Japan)
Inventor
  • Ono, Tatsuya
  • Ogawa, Masaaki

Abstract

A control server in which a virtualization system according to one aspect of the present invention is constructed includes an application management mechanism unit that starts a plurality of applications based on description contents of an application startup monitoring definition file and performs response at a time of abnormal termination of the started applications. Then, the application management mechanism unit is mounted to the application container at the time of startup of the application container in which the application is executed, and is started as an entry point process of the application container.

IPC Classes  ?

  • G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance

4.

PROPULSION DEVICE FOR AIRCRAFT

      
Document Number 03318477
Status Pending
Filing Date 2024-09-30
Open to Public Date 2026-09-21
Owner HITACHI, LTD. (Japan)
Inventor
  • Kawashima, Tetsuya
  • Nakatsu, Kinya
  • Takahata, Ryouichi
  • Nakatsugawa, Junnosuke
  • Kamizuma, Hiroshi

Abstract

The present invention enables reductions in size and weight of a hybrid propulsion system for aircraft. A propulsion device for an aircraft according to the present invention comprises: an engine 30 that outputs rotational force; a propeller 20 that generates propulsion force; a motor 50 that outputs rotational force; an input shaft 41 that has a first cog (first gear) 44 and receives the rotational force output from the engine 30; an output shaft 42 that has a second cog (second gear) 45 and outputs rotational force to the propeller 20; and an intermediate shaft 43 that has a third cog (third gear) 46 and a fourth cog (fourth gear) 47. The first cog 44 and the third cog 46 mesh with each other, and the second cog 45 and the fourth cog 47 mesh with each other. The motor 50 is connected to the intermediate shaft 43, and the rotational force from the motor 50 is input to the intermediate shaft 43.

IPC Classes  ?

  • B64D 33/10 - Radiator arrangement
  • B64D 35/023 - Transmitting power from power plants to propellers or rotorsArrangements of transmissions specially adapted for specific power plants for electric power plants of hybrid-electric type of series-parallel type
  • B64U 20/98 - Cooling using liquid, e.g. using lubrication oil
  • B64U 50/11 - Propulsion using internal combustion piston engines
  • B64U 50/12 - Propulsion using turbine engines, e.g. turbojets or turbofans
  • B64U 50/19 - Propulsion using electrically powered motors
  • B64U 50/33 - Supply or distribution of electrical power generated by combustion engines
  • F16H 1/06 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

5.

ROTATING ELECTRIC MACHINE

      
Document Number 03315219
Status Pending
Filing Date 2024-10-02
Open to Public Date 2026-08-05
Owner HITACHI, LTD. (Japan)
Inventor
  • Nakatsugawa, Junnosuke
  • Takahata, Ryouichi
  • Ito, Makoto
  • Enomoto, Yuji
  • Wang, Zhi

Abstract

The purpose of the present invention is, in a rotating electric machine having a multipolar Halbach magnet arrangement, to suppress an increase in eddy current loss of a permanent magnet, to suppress an increase in temperature of the permanent magnet, and to hardly cause irreversible demagnetization. The rotating electric machine according to the present invention comprises: a stator in which a coil is wound around a stator core; and a rotor which faces the stator via a predetermined gap and in which a spoke magnet magnetized in the circumferential direction and a main pole magnet magnetized in the radial direction are embedded in a rotor core. The spoke magnet and the main pole magnet are respectively divided into a plurality of magnet pieces in at least one direction of the axial direction, circumferential direction, and radial direction of the rotor, and the length of the magnet piece of the spoke magnet in the division direction is shorter than the length of the magnet piece of the main pole magnet in the division direction.

IPC Classes  ?

  • H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

6.

ROTATING ELECTRICAL MACHINE

      
Document Number 03315595
Status Pending
Filing Date 2024-09-26
Open to Public Date 2026-08-05
Owner HITACHI, LTD. (Japan)
Inventor
  • Takahata, Ryouichi
  • Wang, Zhi
  • Nakatsugawa, Junnosuke
  • Fujima, Yuri
  • Iwano, Ryuuichirou

Abstract

Provided is a rotating electrical machine with ensured motor strength and improved cooling performance. A rotating electrical machine comprises: a stator; a rotor; a shaft connected to the rotor; a rotor core connected via a cylindrical rotor core holding section; and a plurality of permanent magnets inserted into the rotor core. The shaft has a first refrigerant flow path and a communication hole that communicates the first refrigerant flow path and the rotor core holding section. The rotor core holding section includes: a second refrigerant flow path extending to the outer circumferential side of the rotor through the communication hole; a third refrigerant flow path branching in the circumferential direction of the rotor from the second refrigerant flow path; a fourth refrigerant flow path reaching the permanent magnets from the third refrigerant flow path and a fifth refrigerant flow path extending along the permanent magnets from the fourth refrigerant flow path.

IPC Classes  ?

  • H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

7.

METHOD AND SYSTEM FOR DETERMINING ONE OR MORE FRONTIER BRANCHES DURING SOFTWARE TESTING

      
Document Number 03293293
Status Pending
Filing Date 2025-11-24
Open to Public Date 2026-06-21
Owner HITACHI, LTD. (Japan)
Inventor Mukherjee, Subhojeet

Abstract

The present disclosure relates to field of software testing that discloses method and system for determining frontier branches during software testing. System receives branch of software code under test from fuzzer. Further, system determines status of each of two end-points to be "processed" or "not-processed" based on corresponding key information. Thereafter, based on determination of status of each of two end points, system performs predefined operations for end-points whose status is determined to be not-processed, and for end-points whose status is determined to be processed. Furthermore, system determines status of at least one of, child blocks of second end-point based on basic block information of second end-point and sibling blocks of second end-point based on basic block information of first end-point. Finally, system determines frontier branches based on determined status of at least one of, child blocks and sibling blocks. The present disclosure helps in reducing time consumed for testing.

IPC Classes  ?

8.

COMMUNICATION RELAY SYSTEM AND COMMUNICATION RELAY DEVICE

      
Document Number 03312485
Status Pending
Filing Date 2024-08-21
Open to Public Date 2026-06-21
Owner HITACHI, LTD. (Japan)
Inventor
  • Tanaka, Daisuke
  • Nishikawa, Satoshi
  • Nomizu, Takuma

Abstract

A communication relay system includes two first communication relay devices to which either a working system or a standby system is set, the two first communication relay devices relaying the data between the first network and the first wireless network and between the first network the second wireless network, and two second communication relay devices to which either a working system or a standby system is set, the two second communication relay devices relaying the data to the second network between the second network and the first wireless network and between the second network the second wireless network. The first communication relay device set to be a working system relays data received from the first network to the first wireless network and the second wireless network, and the second communication relay device set to be a working system relays data received from the first wireless network and the second wireless network to the second network.

IPC Classes  ?

9.

CARRY SYSTEM, CONTROL APPARATUS, AND CONTROL METHOD

      
Document Number 03267809
Status Pending
Filing Date 2024-05-09
Open to Public Date 2025-10-30
Owner HITACHI, LTD. (Japan)
Inventor
  • Ikeda, Akiharu
  • Wada, Takuya
  • Nagahara, Satoshi
  • Okada, Yukihiro
  • Abe, Tetsuya

IPC Classes  ?

  • B65G 1/137 - Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed
  • G06Q 10/08 - Logistics, e.g. warehousing, loading or distributionInventory or stock management

10.

MALICIOUS WEBSITE LIFESPAN PREDICTION SYSTEM AND MALICIOUS WEBSITE LIFESPAN PREDICTION METHOD

      
Document Number 03211431
Status In Force
Filing Date 2023-09-07
Open to Public Date 2025-07-07
Grant Date 2026-03-24
Owner HITACHI, LTD. (Japan)
Inventor
  • Fujii, Shota
  • Yamagishi, Rei
  • Shigemoto, Tomohiro
  • Satou, Takayuki

Abstract

A malicious website lifespan prediction system includes a communication device that accesses a network, a storage device that stores information on malicious websites, and an arithmetic logic unit that observes predetermined events at the malicious websites, applies results of the observation to a decision rule defining a relationship between a tendency related to the predetermined event at the malicious website and a lifespan of the malicious website to predict the lifespan of the malicious website, and selects predetermined malicious websites from among the malicious websites according to the lifespan and generates a blacklist or a watchlist.

IPC Classes  ?

  • H04L 9/40 - Network security protocols
  • H04L 43/06 - Generation of reports
  • H04L 67/02 - Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]

11.

CONNECTION DESTINATION MALIGNANCY DETERMINATION SYSTEM, CONNECTION DESTINATION MALIGNANCY DETERMINATION PROGRAM, AND CONNECTION DESTINATION MALIGNANCY DETERMINATION METHOD

      
Document Number 03212401
Status Pending
Filing Date 2023-09-14
Open to Public Date 2025-07-07
Owner
  • HITACHI, LTD. (Japan)
  • NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY (Japan)
Inventor
  • Fujii, Shota
  • Kawaguchi, Nobutaka
  • Shigemoto, Tomohiro
  • Satou, Takayuki
  • Aoki, Sho
  • Terada, Masato
  • Tsuda, Yu

IPC Classes  ?

12.

MALWARE ANALYSIS SUPPORT SYSTEM AND MALWARE ANALYSIS SUPPORT METHOD

      
Document Number 03209989
Status Pending
Filing Date 2023-08-23
Open to Public Date 2025-06-18
Owner HITACHI, LTD. (Japan)
Inventor
  • Yamagishi, Rei
  • Fujii, Shota
  • Satou, Takayuki
  • Nishijima, Katsuya

IPC Classes  ?

  • G06F 21/55 - Detecting local intrusion or implementing counter-measures
  • G06F 21/56 - Computer malware detection or handling, e.g. anti-virus arrangements
  • G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities

13.

DISTANCE MEASUREMENT SYSTEM AND DISTANCE MEASUREMENT METHOD

      
Document Number 03146353
Status In Force
Filing Date 2020-06-11
Open to Public Date 2021-02-11
Grant Date 2025-02-04
Owner HITACHI, LTD. (Japan)
Inventor
  • Hariyama, Tatsuo
  • Watanabe, Masahiro
  • Taniguchi, Atsushi
  • Maruno, Kenji

Abstract

ABSTRACT According to the present invention, a measured distance is corrected in accordance with change in the surrounding environment. A distance measurement system includes: a first light-receiving unit configured to irradiate an object with one part of a split light beam as assessment light, and receive light reflected by the object to detect a target assessment beat signal; a second light¬ receiving unit configured to guide the other part of the split light beam as reference light to a reference optical path serving as a distance reference, and receive the reference light that has passed through the reference optical path to detect a reference optical path assessment beat signal; a distance measurement unit configured to measure a distance to the object on the basis of the target assessment beat signal and the reference optical path assessment beat signal; a temperature sensor configured to assess a temperature in the periphery of the reference optical path; and a correction unit configured to correct the measured distance on the basis of the assessed temperature.

IPC Classes  ?

  • G01B 9/02003 - Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies using beat frequencies
  • G01B 9/02056 - Passive reduction of errors

14.

SHAPE MEASURING SYSTEM AND SHAPE MEASURING METHOD

      
Document Number 03127579
Status In Force
Filing Date 2020-02-13
Open to Public Date 2020-08-27
Grant Date 2023-08-01
Owner HITACHI, LTD. (Japan)
Inventor
  • Hariyama, Tatsuo
  • Watanabe, Masahiro
  • Taniguchi, Atsushi
  • Maruno, Kenji
  • Yazaki, Akio

Abstract

A shape of an object is measured with a high degree of accuracy. A shape measurement system comprises: a distance measuring head for irradiating an object with light and receiving light reflected from the object; a distance measuring device for generating a distance detection waveform on the basis of the reflected light; and a control device for analyzing the distance detection waveform and calculating a measured distance value to the object. The shape measurement system is characterized in that the control device calculates a feature amount of the distance detection waveform and performs at least one of a process of correcting an error in the measured distance value by substituting the feature amount into a correction formula and a process of performing a confidence weighting of an error in the measured distance value by substituting the feature amount into a confidence weighting formula.

IPC Classes  ?

  • G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

15.

ALERT ANALYSIS SERVER AND METHOD OF OPERATION THEREOF

      
Document Number 03074663
Status In Force
Filing Date 2018-08-13
Open to Public Date 2019-08-29
Grant Date 2026-01-20
Owner HITACHI, LTD. (Japan)
Inventor
  • Mimura, Nodoka
  • Tsushima, Yuji
  • Ikegami, Kozo

Abstract

An analysis apparatus comprises: a processor; and a storage device that stores a prediction model that predicts results for contributing factors of a group of events, wherein the processor executes: a prediction error calculation process in which, on the basis of a first prediction value attained by providing the prediction model with a first appearance frequency for contributing factors of a first event among the group of events, and results corresponding to the first appearance frequency, a prediction error of the first prediction value is calculated; and an error factor extraction process in which, on the basis of a correlation between a second appearance frequency for a contributing factor of a second event among the group of events and the prediction error calculated by the prediction error calculation process, an error factor of the prediction error is extracted from among the contributing factors of the first event.

IPC Classes  ?

  • G06F 21/55 - Detecting local intrusion or implementing counter-measures
  • G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"

16.

DISTANCE MEASURING DEVICE AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS

      
Document Number 03053315
Status In Force
Filing Date 2018-05-22
Open to Public Date 2018-12-13
Grant Date 2021-08-17
Owner HITACHI, LTD. (Japan)
Inventor
  • Watanabe, Masahiro
  • Hariyama, Tatsuo
  • Taniguchi, Atsushi
  • Maruno, Kenji

Abstract

The purpose of the present invention is to provide a feature with which it is possible to reduce the size of a measurement part in a distance measurement device. This distance measurement device is characterized in that: there are provided a light-emitting unit that outputs measurement light, a polarization state control unit that controls the polarization of the measurement light outputted from the light-emitting unit, and an optical path switching element that selectively radiates the measurement light controlled by the polarization state control unit; the polarization state control unit controls the polarization so that the measurement light is radiated toward a plurality of directions from the optical path switching element; and the optical path switching element takes in light reflected by an object due to the measurement light radiated from the optical path switching element, the reflected light being used in measuring the distance to the object.

IPC Classes  ?

  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
  • G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
  • G01C 3/06 - Use of electric means to obtain final indication

17.

SOLID-LIQUID SEPARATOR

      
Document Number 02897553
Status In Force
Filing Date 2015-07-15
Open to Public Date 2016-03-26
Grant Date 2017-03-21
Owner HITACHI, LTD. (Japan)
Inventor
  • Sano, Tadashi
  • Matsuzawa, Mitsuhiro
  • Sekiya, Sachio
  • Kokugan, Yoko

Abstract

A solid-liquid separator separates a solid-liquid mixture into solids and liquids respectively independently by using a substance that is a gas at ambient temperature and becomes a liquid at a saturated vapor pressure or higher. The solid-liquid separator includes a compressor configured to compress the substance, a cooler configured to liquefy the substance, an accumulator configured to store the liquefied substance, a valve configured to regulate the flow of the liquefied substance, a sprayer configured to spray liquefied gas as droplets, a processing tank configured to contain the mixture and including the sprayer at an upper portion, a filter configured to prevent the solid from flowing out of the processing tank, and a vaporizer configured to vaporize the substance from a liquid mixture flowed out from the processing tank. An upper space of the inside of the processing tank is filled with the gaseous substance.

IPC Classes  ?

  • B01D 21/00 - Separation of suspended solid particles from liquids by sedimentation

18.

SOLID/LIQUID SEPARATION APPARATUS, AND METHOD FOR SAME

      
Document Number 02919612
Status In Force
Filing Date 2013-08-02
Open to Public Date 2015-02-05
Grant Date 2017-09-19
Owner HITACHI, LTD. (Japan)
Inventor
  • Sano, Tadashi
  • Sekiya, Sachio

Abstract

Provided is a solid/liquid separation apparatus utilizing a cycle of changes in state of a substance (A) that can dissolve water and oil, wherein the solid/liquid separation apparatus has reduced frequency of maintenance, and allows the charged amount of substance (A) within cycles to be easily controlled. This solid/liquid separation apparatus, employing a substance (A) that can dissolve water and oil, brings the substance (A) while in the liquid state into contact with a treated material composed of a mixture of water and a solid, oil and a solid, or water, oil, and a solid, and then brings about dewatering and deoiling of the treated material by vaporizing the substance (A), and is characterized by being provided with: a substance (B) that circulates while giving rise to changes in state within a closed system; a compressor for compressing the substance (B); a first heat exchanger for exchange of condensation heat of the substance (B) and vaporization heat of the substance (A); an expansion valve for depressurizing the condensed substance (B); a second heat exchanger for exchange of vaporization heat of the substance (B) and condensation heat of the substance (A); a treatment tank for condensing the vaporized substance (A) in the second heat exchanger while separating water or oil in the first heat exchanger, and mixing the liquid substance (A) with the treated material; and a pump situated on the pipeline in which the liquid substance (A) is present.

IPC Classes  ?

  • B01D 11/02 - Solvent extraction of solids
  • B01D 12/00 - Displacing liquid, e.g. from wet solids or from dispersions of liquids or from solids in liquids, by means of another liquid
  • B01D 15/00 - Separating processes involving the treatment of liquids with solid sorbentsApparatus therefor
  • B01J 20/34 - Regenerating or reactivating
  • C02F 11/00 - Treatment of sludgeDevices therefor

19.

FLOATING OFFSHORE WIND POWER GENERATION FACILITY

      
Document Number 02902306
Status In Force
Filing Date 2014-03-03
Open to Public Date 2014-09-18
Grant Date 2021-08-31
Owner
  • KYOTO UNIVERSITY (Japan)
  • HITACHI, LTD. (Japan)
  • TODA CORPORATION (Japan)
Inventor
  • Sato, Iku
  • Asano, Hitoshi
  • Utsunomiya, Tomoaki
  • Yoshida, Shigeo

Abstract

There is provided a spar-type floating offshore wind power generation facility that suppresses a reduction in pcwer generation efficiency caused by tilting of a tower, suppresses rotational motion (yaw motion) arcund a vertical axis, prevents a ship from coming into contact with a mooring cable, and, at the same time, appropriately holds the tilted posture state of the tower. A floating offshore wind power generation facility 1 includes a floating body 2, a mooring cable 3, a tower 4, and a windmill 5 installed at the top of the tower 4, the windmill 5 including a nacelle 6 and a plurality of blades 7. The rotation axis of the windmill 5 has a predetermined upward angle to avoid contact between the blades 7 and the tower 4, and the windmill 5 is of a downwind type in which the blades 7 are attached to the leeward side of the nacelle 6 and installed with the back surfaces of the blades 7 facing windward, and the mooring point of the mooring cable 3 to the floating body 2 is set at a position below the surface of the sea and higher than the center of gravity of the floating body 2.

IPC Classes  ?

  • B63B 5/14 - Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced
  • B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
  • F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
  • F03D 13/25 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors specially adapted for offshore installation

20.

MAP DATA CREATION DEVICE, AUTONOMOUS MOVEMENT SYSTEM AND AUTONOMOUS MOVEMENT CONTROL DEVICE

      
Document Number 02869374
Status In Force
Filing Date 2012-04-05
Open to Public Date 2013-10-10
Grant Date 2019-04-16
Owner HITACHI, LTD. (Japan)
Inventor
  • Ono, Yukihiko
  • Yamamoto, Kenjiro
  • Ichinose, Ryoko
  • Oshima, Akira

Abstract

The invention is intended to be able to generate map data even if a location not suited for identification of a matching position exists. A map data creation device creates map data, the map data being used for autonomous movement by a vehicle (1a), a vehicle (1b) and/or other vehicles (1), based on a relative position of the vehicle (1b) which exists around the vehicle (1a), relative to the vehicle (1a), the relative position being measured by the vehicle (1a), and object shape data of an object which exists around the vehicle (1b), the object shape being measured by the vehicle (1b). Moreover, the relative position of the vehicle (1b) relative to the vehicle (1a) is calculated based on the object shape data measured by the vehicle (1a).

IPC Classes  ?

  • G01C 21/00 - NavigationNavigational instruments not provided for in groups

21.

CONTROL SYSTEM INCLUDING SOE DEVICE

      
Document Number 02764203
Status In Force
Filing Date 2012-01-17
Open to Public Date 2012-07-19
Grant Date 2014-11-18
Owner HITACHI, LTD. (Japan)
Inventor
  • Imazawa, Takao
  • Furuta, Yasuyuki
  • Otani, Tatsuyuki
  • Shiraishi, Masahiro
  • Ohashi, Akihiro
  • Kobayashi, Eiji

Abstract

A control system comprises a computing device, an input/output device, and an SOE device which are connected through a shared communication line. The input/output device transmits a status signal inputted from a control target to the computing device and outputs a control signal transmitted from the computing device to the control target, and the SOE device imports the control signal or the status signal to record a predetermined change thereof as event data, wherein the SOE device has a communication control portion which receives a read request from the computing device with a predetermined reception cycle, and transmits the event data to the computing device with a predetermined transmission cycle in response to the read request.

IPC Classes  ?

  • G05B 15/02 - Systems controlled by a computer electric
  • G05B 23/02 - Electric testing or monitoring

22.

CO2 SEPARATION AND RECOVERY EQUIPMENT, AND A COAL GASIFICATION COMBINED POWER PLANT COMPRISING CO2 SEPARATION AND RECOVERY EQUIPMENT

      
Document Number 02813714
Status In Force
Filing Date 2011-09-12
Open to Public Date 2012-04-12
Grant Date 2015-10-27
Owner HITACHI, LTD. (Japan)
Inventor Takeuchi, Hiroto

Abstract

Provided are CO2 separation and recovery equipment that yields a higher CO2 recovery rate, and a coal gasification combined power plant including the CO2 separation and recovery equipment with high plant efficiency. The CO2 separation and recovery equipment of the invention, having a CO shift reactor in which a gas containing main components of CO and H2O is introduced and converted into CO2 and H2, includes: an inlet valve that is provided on the inlet side of the CO shift reactor; an outlet valve that is provided on the outlet side of the CO shift reactor; a steam control valve for applying high-temperature steam to a foregoing part of the inlet valve; and a gas composition analyzer that senses a gas composition of a stream flowing into the CO shift reactor. The steam control valve is controlled by the difference in the molar amount of CO and H2O that is calculated from the analysis results of the gas composition analyzer, and the inlet valve and the outlet valve of the CO shift reactor are controlled on the basis of the catalyst tank temperature of the CO shift reactor.

IPC Classes  ?

  • C01B 3/14 - Handling of heat and steam
  • C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
  • C10K 3/04 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment reducing the carbon monoxide content
  • F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
  • F02C 6/00 - Plural gas-turbine plantsCombinations of gas-turbine plants with other apparatusAdaptations of gas-turbine plants for special use

23.

MULTI UNIT CONTROLLER

      
Document Number 02743968
Status In Force
Filing Date 2011-06-22
Open to Public Date 2011-12-25
Grant Date 2014-09-02
Owner HITACHI, LTD. (Japan)
Inventor
  • Sugimoto, Yuta
  • Nishioka, Atsushi
  • Kobayashi, Eiji
  • Ohashi, Akihiro
  • Yoshida, Katsumi
  • Nakamura, Satoshi
  • Nemoto, Fumihiko

Abstract

A multi unit controller has a plurality of base units each of which includes a control unit connector, a base unit connector through which the base units juxtaposed to each other are connected to each other, and a plurality of control units connected to the base units respectively through the respective control unit connector, wherein the base units juxtaposed vertically.

IPC Classes  ?

  • G05B 99/00 - Subject matter not provided for in other groups of this subclass
  • H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
  • H01R 25/00 - Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits

24.

ULTRASONIC FLAW DETECTING METHOD AND ULTRASONIC FLAW DETECTOR

      
Document Number 02496370
Status In Force
Filing Date 2005-02-07
Open to Public Date 2005-08-23
Grant Date 2008-09-09
Owner HITACHI, LTD. (Japan)
Inventor
  • Kono, Naoyuki
  • Matsui, Tetsuya
  • Koike, Masahiro
  • Tooma, Masahiro
  • Musha, Yoshinori
  • Miki, Masahiro

Abstract

In order to make it possible in ultrasonic flaw detection to generate ultrasonic waves containing a main beam only by use of an array probe and clearly identify a defect in a specimen by use of images, an element pitch P (the distance between centers of adjacent ultrasonic transducer elements in the array probe) is set longer than 1/4 of the wavelength of longitudinal waves generated by the ultrasonic transducer elements and shorter than 1/2 of the wavelength and reception signals up to time corresponding to the sum of wall thickness round-trip propagation time for longitudinal waves and wall thickness round-trip propagation time for shear waves in the specimen are displayed.

IPC Classes  ?

  • G01N 29/04 - Analysing solids
  • G01N 29/38 - Detecting the response signal by time filtering, e.g. using time gates

25.

PERSONAL IDENTIFICATION DEVICE AND METHOD

      
Document Number 02472563
Status In Force
Filing Date 2004-06-25
Open to Public Date 2005-02-26
Grant Date 2012-08-28
Owner HITACHI, LTD. (Japan)
Inventor
  • Miura, Naoto
  • Nagasaka, Akio
  • Miyatake, Takafumi

Abstract

A personal identification device and method prevent the reduction in the finger vein recognition rate which otherwise occur due to erroneous insertion of a finger by a user not accustomed to operation or insertion of a false finger at low cost. The device includes an imager picking up an image of a finger vein pattern, a light source emitting light adapted to be transmitted through the finger, an image operating unit matches the image, guides indicating the position of picking up the finger image, a detector detecting the contact between the finger and the guides, another light source radiating light reflected from the thick of the finger, a switch which is depressed by the forward end of the finger, a further light source emitting light transmitted through the forward end of the finger, and a light-sensor receiving the light from the further light source through the finger.