TDK Corporation

Japan


Create a watch for TDK Corporation
Total IP 6,844
Total IP incl. subs 8,438 (+ 1,741 for subs)
Total IP Rank # 155
IP Activity Score 4.2/5.0    4,104
IP Activity Rank # 146
IP AS incl. subs 4/5.0    4,331
Stock Symbol
ISIN JP3820400004
Market Cap. 28561521754.0  (JPY)
Industry Electrical Equipment & Parts
Sector Industrials
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

5,154 56
20 8
1,606 0
0
 
Last Patent 2026 - Charging control device, energy ...
First Patent 1972 - Process for the production of po...
Last Trademark 2025 - TDK SENSING WITHIN
First Trademark 1968 - TDK

Subsidiaries

21 subsidiaries with IP (1705 patents, 36 trademarks)

4 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2026 Invention Magnetic sensor. A position detection device includes a magnetic field generator and a magnetic ...
Invention Magnetic sensor device. A magnetic sensor device includes at least one magnetic sensor and a sup...
Invention Devices and methods of detecting driving conditions from a rotating. An example sensor assembly ...
2025 Invention Magnetoresistance effect element. A magnetoresistive effect element includes a first ferromagnet...
Invention Coil component and wireless power transmission device having the same. Disclosed herein is a coi...
Invention Multilayer electronic device and method for manufacturing thereof. A multilayer electronic devic...
Invention Coil component. A coil component includes: an element body including a main surface, and a first...
Invention Multilayer electronic component. A multilayer electronic component includes: an element body inc...
Invention Gas sensor. Disclosed herein is a gas sensor that includes: a substrate having a first cavity; a...
Invention Optical modulator, light source module, and optical modulation method. Provided is an optical mo...
Invention Magnetic core, magnetic component, and electronic device. A magnetic core includes specific part...
G/S Sensors, namely, temperature sensors, NTC being negative-temperature-coefficient thermistor senso...
G/S Semiconductor manufacturing machines; Flip chip mounting machine for the manufacture of electric,...
Invention Field-effect transistor. [Problem] To suppress dielectric breakdown caused by electric field conc...
Invention R-t-b based permanent magnet and method of manufacturing the same. An R-T-B based permanent magn...
Invention Coil device. A coil device including a bobbin 3, a coil 1 including wound wire parts 10 and 20 w...
Invention Electronic component. An electronic component includes a first main body, and a second main body...
Invention Temperature sensor assembly, attachment component, probe component, and temperature measurement a...
Invention Magnetic sensor, methods for manufacturing and designing same, and motor device. A magnetic sens...
Invention Infrared detection element and infrared sensor having same. An infrared detection element compri...
Invention Electric power conversion apparatus. An electric power conversion apparatus includes: a first el...
Invention Rotor manufacturing method, rotor, rotary electric machine, and automobile. This manufacturing me...
Invention Method for manufacturing rotor , rotor, rotating electrical machine, and automobile. This method ...
Invention Method for manufacturing magnetic laminated body and magnetic sensor, and apparatus for manufactu...
Invention Magnet unit, rotor, rotary electrical machine, automobile, and rotor manufacturing method. In thi...
Invention Rotor, rotary electric machine, automobile, and rotor manufacturing method. This rotor comprises ...
Invention Optical device. The optical device includes a substrate, a waveguide layer having a slab portion...
G/S Metal alloys, namely, hydrogen storage alloy; metal alloys, namely, hydrogen absorbing alloy; non...
G/S Watches, clocks; Clocks and watches, electric Video game machines; Portable games with liquid cry...
Invention Piezoelectric valve. A piezoelectric valve includes a housing provided with an inflow hole and a...
Invention Piezoelectric valve. A piezoelectric valve is a piezoelectric valve driven by a DC component, an...
Invention Sensor apparatus and method of manufacturing sensor apparatus. A sensor apparatus includes: one ...
Invention Resonant circuit and wave splitter. A resonant circuit (30) comprises: a first resonator (11) hav...
G/S Computer keyboards; Computer peripheral devices; Computer mice; Joysticks for use with computers,...
Invention Coil device. A coil device includes a core; a first conductor including a first coil portion ins...
Invention Inductor component and embedded component substrate comprising same. [Problem] To make it possibl...
Invention Sensor. A magnetic sensor includes an insulating layer including a protruding surface, a first M...
Invention Input device and method for controlling input device. An input device includes an operation sect...
Invention Optical member driving mechanism. An optical member driving mechanism is provided, including a m...
Invention Magnetic sensor and manufacturing method for the same. A magnetic sensor includes: a support mem...
G/S Flip chip mounting machine for the manufacture of electric, electronic and semiconductor devices ...
Invention Metal member for pressure sensor. A metal member for a pressure sensor, including: a base wall a...
2024 Invention Battery packaging container
Invention Physical reservoir and information processing device. A physical reservoir according to the prese...
Invention Battery pack and substrate module. In this battery pack (1) according to one embodiment, a plural...
Invention Inductor
Invention Coil component
2023 Invention Electronic component. An electronic component includes: an insulating layer covering the surface...
Invention Charging control device, energy storage system, remaining charging time notification method, and ...
Invention Control device for motor, motor, control device for power generator, power generator, and wind tu...
Invention Solid electrolyte layer and all-solid-state secondary battery. A solid electrolyte layer include...
G/S Ferrites in the nature of magnetic cores; electronic components in the nature of capacitors; cera...
G/S Blank flash memory cards; secure digital (SD) memory cards; computer hardware, namely, memory car...
2022 G/S Magnetic sensors; sensors for measuring magnetic field; magnetometers
G/S Microfluidic chips for scientific, laboratory and general research uses; microfluidic chips for l...
Invention Electric power conversion apparatus and electric power conversion system. An electric power conv...
G/S Batteries
2021 Invention Magnetization rotational element, magnetoresistance effect element, and magnetic memory. This ma...
G/S Electric actuators; Piezoelectric actuators; Piezoelectric buzzers; Piezoelectric speakers; Telev...
G/S (Based on 44(e)) Energy management devices, namely, power controllers, electric controllers, elec...
2020 G/S Vehicle safety equipment, namely, electronic monitors for measuring tire pressure, tire particles...
G/S power supplies, switching power supplies and parts and fittings therefor, namely, electrical plug...
G/S Solar cells; dry cells; electrical cells and batteries; battery chargers; electric accumulators; ...
2018 G/S Capacitors; thin film capacitors; electronic circuit; electronic circuit boards; capacitors for e...
G/S Electric actuators; piezoelectric actuators; piezoelectric buzzers; piezoelectric speakers; louds...
G/S Multilayer chip varistors; chip varistors; varistors; voltage surge suppressors; voltage surge pr...
G/S flip chip mounting machine for the manufacture of electric, electronic and semiconductor devices ...
2017 G/S [ video game machines; portable games with liquid crystal displays; Apparatus for electronic game...
2012 G/S Product testing, namely, testing electronic products for electromagnetic emissions and immunity f...
2008 G/S Power supplies namely, AC-DC converters, AC-DC power supplies; parts and fittings for power suppl...
G/S [ Retail store services, on-line retail store services, mail order retail store services, wholesa...
G/S Retail store services, on-line retail store services, mail order retail store services, wholesale...
2007 G/S circuit boards; printed circuit boards; electronic circuit boards; integrated circuit boards; sem...
G/S Computer hardware; flash memory computer hardware; silicon disk modules, namely, blank flash-memo...
G/S Semiconductor chips
2005 G/S Magnetic ingots; metal foil resistors. Automatic vending machines; plungers[mechanical drive comp...
2004 G/S Electric capacitors, multilayer ceramic chip capacitors, capacitors, laboratory equipment, namely...
G/S Electric capacitors, multilayer ceramic chip capacitors, capacitors, [ laboratory apparatus and i...
2003 G/S VIDEO GAME CARTRIDGES AND VIDEO GAME DISCS FOR USE IN GAME CONSOLES AND PERSONAL COMPUTERS; COMPU...