TDK Corporation

Japan


 
Total IP 6,626
Total IP incl. subs 8,294 (+ 1,823 for subs)
Total IP Rank # 152
IP Activity Score 4.2/5.0    4,262
IP Activity Rank # 141
IP AS incl. subs 4/5.0    4,522
Stock Symbol
ISIN JP3820400004
Market Cap. 28561521754.0  (JPY)
Industry Electrical Equipment & Parts
Sector Industrials
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

5,047 54
20 8
1,497 0
0
 
Last Patent 2025 - Electronic component
First Patent 1972 - Process for the production of po...
Last Trademark 2025 - TDK
First Trademark 1968 - TDK

Subsidiaries

20 subsidiaries with IP (1784 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 Negative electrode active material layer, negative electrode, and lithium-ion rechargeable batter...
Invention Substrate with dielectric thin film, optical waveguide component, and optical modulation componen...
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 Nanogranular magnetic film and electronic component. A nanogranular magnetic film includes first...
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 Soft magnetic metal particle, dust core, and magnetic component. A soft magnetic metal particle ...
Invention Analog inference circuits, systems, and methods. An example system includes an array of input nod...
Invention Sensor. A sensor including: a base material having a surface on which streaks are formed along a...
Invention Switching mechanism. A switching mechanism is provided. The switching mechanism includes a movab...
Invention Analog inference circuits, systems, and methods. An example system includes an array of input no...
Invention Electronic component. A coil component includes an element body formed by laminating a plurality...
Invention Coil component. Disclosed herein is a coil component that includes plural conductor layers embed...
Invention Laminated coil component. In the laminated coil component, in the third direction, the pair of t...
Invention Antenna device and ic card. An antenna device is an antenna device including a mesh-shaped condu...
Invention Magnetic sensor device, magnetic sensor system, and operation detection device. A magnetic senso...
Invention Electronic component. An electronic component includes an element body, a plurality of external ...
Invention Semiconductor device. [Problem] To effectively suppress the concentration of an electric field ca...
Invention Multilayer coil component. A multilayer coil component includes: an element body having a pair o...
Invention Electronic component. [Problem] To improve insulation between coils in an electronic component ha...
Invention Electronic component. A coil component includes an element body, a first terminal electrode, a s...
Invention Electronic component and substrate with built-in electronic component. [Problem] To provide an el...
Invention Electronic component and method for manufacturing same. [Problem] To provide an electronic compon...
2023 Invention Hydrogen storage alloy, negative electrode comprising said hydrogen storage alloy, and nickel hyd...
Invention Magnetoresistance effect element and magnetic memory. A magnetoresistance effect element accordin...
G/S Ferrites in the nature of magnetic cores; electronic components in the nature of capacitors; cera...
Invention Zinc battery. A battery includes an exterior can, an electrode group housed together with an alk...
G/S Blank flash memory cards; secure digital (SD) memory cards; computer hardware, namely, memory car...
2022 Invention Antenna and display device. An antenna includes a radiation conductor having a circular shape, a...
Invention Thin film capacitor, manufacturing method therefor, and electronic circuit board having the thin ...
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 Magnetized rotary element, magnetoresistive element, and magnetic memory. This magnetized rotary...
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...
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...