TDK Corporation

Japan


 
Total IP 6,641
Total IP incl. subs 8,306 (+ 1,820 for subs)
Total IP Rank # 152
IP Activity Score 4.2/5.0    4,253
IP Activity Rank # 141
IP AS incl. subs 4/5.0    4,514
Stock Symbol
ISIN JP3820400004
Market Cap. 28561521754.0  (JPY)
Industry Electrical Equipment & Parts
Sector Industrials
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

5,058 54
20 8
1,501 0
0
 
Last Patent 2025 - Calculation model, information p...
First Patent 1972 - Process for the production of po...
Last Trademark 2025 - TDK
First Trademark 1968 - TDK

Subsidiaries

20 subsidiaries with IP (1781 patents, 39 trademarks)

4 subsidiaries without IP

 Register for free to unlock the subsidiary list

Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 G/S Flip chip mounting machine for the manufacture of electric, electronic and semiconductor devices ...
2024 Invention Optical sensor. An optical sensor includes a wavelength filter configured to transmit light in a...
Invention Magnetic sensor and magnetic sensor system. A magnetic sensor includes a first path and a second...
Invention Domain wall motion element and magnetic array. This domain wall motion element includes a first ...
Invention Magnetic field detection apparatus. A magnetic field detection apparatus includes a substrate in...
Invention Position detection device. A position detection device includes a magnet that generates a magnet...
Invention Resin wiring substrate and stretchable device. The present invention has: a first resin layer (11...
Invention Resin wiring board and stretchable device. A resin wiring board (1) has a resin substrate (11) wi...
Invention Soft magnetic powder, magnetic core, and magnetic device. A soft magnetic powder including a sof...
Invention Wiring body and smart glasses. A wiring body includes a base board, a ground pattern provided on...
Invention Magnetic core, magnetic device, and electronic apparatus. A magnetic core includes soft magnetic...
Invention Measurement apparatus. A measurement apparatus includes a signal sensor unit configured to measu...
Invention Power storage element. This power storage element comprises: a laminate (40) in which a separator...
Invention Substrate with dielectric thin film, optical waveguide component, and optical modulation componen...
Invention Coil device. To provide a coil device capable of preventing a short-circuit failure during mount...
Invention Electro-optical component and optical modulation component. An electro-optical component include...
Invention Electrode and lithium ion secondary battery. Electrodes (20, 30) are provided with current collec...
Invention Coil device. A core device includes: a core having a mounting surface; a first conductor includi...
Invention Magnetic body, actuator, and sensor. A magnetic body including, in the given order: a substrate; ...
Invention Magnetic material film, member with magnetic material film, actuator, and sensor. [Problem] To pr...
Invention Magnetic material film, magnetic-material-film-equipped member, actuator, and sensor. [Problem] T...
Invention Position detecting system, detection target member, and magnetic detecting device. [Problem] To p...
Invention Coil component. Disclosed herein is a coil component that includes a plurality of conductor laye...
Invention Multilayer filter device. A filter device includes a stack including a plurality of dielectric l...
Invention Mems microphone and chip component for a mems microphone. The present application addresses a MEM...
Invention Chip component and mems microphone. The present application addresses a chip component for use in...
Invention Coil device. A coil device includes a winding section comprised of a wound wire, a core, and a t...
Invention Soft magnetic metal powder, magnetic core, and magnetic component. A soft magnetic metal powder ...
Invention Coil component and power supply apparatus. A coil component may include a core portion including...
Invention Sensor. A sensor including: a base material having a surface on which streaks are formed along a...
Invention Electronic component. A coil component includes an element body formed by laminating a plurality...
Invention Laminated coil component. In the laminated coil component, in the third direction, the pair of t...
Invention Optical element, laser module, retinal projection device, and near-eye wearable device. An optic...
Invention Optical element and laser module. In a first region of a first conversion portion, a length of a...
Invention Optical element and laser module. A core layer of an optical element includes a second conversio...
Invention Electronic component. An electronic component includes an element body, a plurality of external ...
Invention Array sensor. An array sensor comprises: first wirings that, when viewed from the third directio...
2023 Invention Substrate structure and power supply device. This substrate structure comprises a substrate, a pa...
Invention Hydrogen storage alloy, negative electrode comprising said hydrogen storage alloy, and nickel hyd...
Invention Electronic component. An electronic component includes a first resonance circuit configured to i...
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 Invention Thin film capacitor and electronic circuit board having the same. To provide a thin film capacit...
Invention Thin film capacitor, manufacturing method therefor, and electronic circuit board having the thin ...
Invention Wiring body and display device. A wiring body includes an electrode and a terminal, in which the...
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 Fixation structure, and electronic unit. A fixation structure includes: a structure; a first mag...
Invention Sensor element and manufacturing method therefor. To reliably electrically connect the lead laye...
Invention Magnetic sensor. To reduce the influence of disturbance noise in a magnetic sensor provided with...
Invention Magnetic sensor. To prevent, in a magnetic sensor provided with an external magnetic body for co...
G/S Batteries
2021 G/S Electric actuators; Piezoelectric actuators; Piezoelectric buzzers; Piezoelectric speakers; Telev...
Invention Calculation model, information processing method, storage medium, and information processing devi...
G/S (Based on 44(e)) Energy management devices, namely, power controllers, electric controllers, elec...
G/S electromagnetic absorbing and shielding materials, namely, composite metal sheets offer rite and ...
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 wearable activity trackers; wearable computers; wireless vital data monitoring sensors for monito...
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 Computer software for processing vital data; wireless vital data monitoring sensors excluding for...
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...
1999 G/S BATTERIES [; BATTERY CHARGERS ] [ FLASHLIGHTS, LAMPS, AND ELECTRIC LANTERNS ]
1996 G/S Magnetic necklaces in the form of plated magnets strung as necklaces and worn for therapeutical p...
1995 G/S heavy duty primary batteries for use in the operation of electrical equipment comprising security...