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For the Inventor, By the Inventor

Miyagi, Japan

Nec Tokin Corporation

Calculating rank
USPTO Granted Patents = 259

% Expired Patents = 39.8



Trademarks = 9

Forward Citations = 2,359

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291 inventors (with patents filed for the assignee):

goldMedal Tomoki Nobuta (31 out of 32 patents)

silverMedal Toshihiko Nishiyama (26 out of 53 patents)

bronzeMedal Satoshi Arai (23 out of 137 patents)

4.  Koji Sakata (23 out of 49 patents)

5.  Katsuhiro Yoshida (23 out of 30 patents)

6.  Shigeyoshi Yoshida (18 out of 36 patents)

7.  Hiroshi Ono (18 out of 35 patents)

8.  Teruhiko Fujiwara (17 out of 23 patents)

9.  Masato Kurosaki (17 out of 20 patents)

10.  Sadamu Toita (16 out of 16 patents)

11.  Masaya Mitani (16 out of 16 patents)

12.  Gaku Harada (16 out of 30 patents)

13.  Satoshi Suzuki (15 out of 22 patents)

14.  Yoshihiko Saiki (15 out of 22 patents)

15.  Takayuki Inoi (15 out of 34 patents)


Core Competencies:
Solid Electrolytic Capacitor
Conductive Polymer
Noise Filter
Electromagnetic Relay
Piezoelectric Sensor
Antenna Device
Reactor
Magnetic Powder
Infrared Sensor
Multilayer Board
Soft Magnetic Alloy
Stent

259 patents:

1. 10192676 - Noise filter, multistage-connection LC filter, and medical instrument (2019-01-29),
2. 9716317 - Antenna device, communication module, portable electronic apparatus, and communication method using portable electronic apparatus (2017-07-25),
3. 9576726 - Electronic equipment, module, and system (2017-02-21),
4. 9544694 - Piezoelectric element, piezoelectric vibration module, and methods of manufacturing the same (2017-01-10),
5. 9468134 - Soft magnetic powder, method of manufacturing the same, noise suppression sheet using the same, and method of manufacturing the same (2016-10-11),
6. 9455092 - Electric conductive polymer suspension and method for producing the same, electric conductive polymer material, and electrolytic capacitor and method for producing the same (2016-09-27),
7. 9452594 - Electroconductive polymer composition, electroconductive polymer material, electroconductive substrate, electrode and solid electrolytic capacitor (2016-09-27),
8. 9329087 - Pyroelectric-type infrared sensor (2016-05-03),
9. 9293263 - Solid electrolytic capacitor (2016-03-22),
10. 9287028 - Alloy composition, Fe-based nano-crystalline alloy and forming method of the same (2016-03-15),
11. 9274006 - Infrared sensor (2016-03-01),
12. 9219299 - Resonator, multilayer board and electronic device (2015-12-22),
13. 9208932 - Magnetic powder, forming method thereof and magnetic sheet (2015-12-08),
14. 9205178 - Ti-Ni-Nb alloy device (2015-12-08),
15. 9183990 - Electroconductive polymer composition, electroconductive polymer material, electroconductive substrate, electrode and solid electrolytic capacitor (2015-11-10),
Company Overview
Nec Tokin Corporation, headquartered in Miyagi, Japan, specializes in the development and manufacturing of solid electrolytic capacitors and related technologies. The company focuses on innovative solutions in areas such as conductive polymers, noise filters, electromagnetic relays, piezoelectric sensors, antenna devices, reactors, and magnetic powders. With a commitment to advancing electronic components, Nec Tokin plays a significant role in enhancing the performance and reliability of various electronic applications across multiple industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

259 Patents

#1 in Miyagi

#593 in Japan

#3,382 in the World

Miyagi, JP
Miyagi, Japan

Nec Tokin Corporation

Forward Citations = 2,359

291 inventors:

goldMedal Tomoki Nobuta (31 out of 32 patents)

silverMedal Toshihiko Nishiyama (26 out of 53 patents)

bronzeMedal Satoshi Arai (23 out of 137 patents)

4.  Koji Sakata (23 out of 49 patents)

5.  Katsuhiro Yoshida (23 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nec Tokin Corporation. Retrieved from https://idiyas.com/company/nec-tokin

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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