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For the Inventor, By the Inventor

Kanagawa, Japan

Nidec Tosok Corporation


USPTO Granted Patents = 145

% Expired Patents = 37.2


Trademarks = 1

Forward Citations = 122

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120 inventors (with patents filed for the assignee):

goldMedal Hiroshi Shirai (21 out of 63 patents)

silverMedal Yutaka Uematsu (20 out of 88 patents)

bronzeMedal Shigehiro Kataoka (20 out of 23 patents)

4.  Toshiaki Nakamura (19 out of 20 patents)

5.  Shuichi Kinjo (18 out of 18 patents)

6.  Tomohiko Nakanishi (15 out of 15 patents)

7.  Yoshiyuki Kobayashi (13 out of 214 patents)

8.  Tomoka Osawa (13 out of 14 patents)

9.  Tomohiro Yasuda (11 out of 11 patents)

10.  Yoshiyuki Kobayashi (11 out of 17 patents)

11.  Hironobu Wakabayashi (9 out of 10 patents)

12.  Hiroshi Tatsuta (9 out of 9 patents)

13.  Yoshihisa Okuhata (8 out of 11 patents)

14.  Tadayuki Hatsuda (8 out of 13 patents)

15.  Shun Kato (8 out of 8 patents)


Core Competencies:
Electric Pump
Electric Actuator
Electromagnetic Valve
Motor Control Device
Vehicle Cooling System
Hydraulic Control Apparatus
Solenoid Valve
Pressure Sensor
Motor Assembly
Control Device
Pump Device
Blow-By Gas Diagnostic

145 patents:

1. 12388332 - Electric pump (2025-08-12),
2. 12255502 - Rotary electric machine and pump (2025-03-18),
3. 12136863 - Rotary electric machine and pump (2024-11-05),
4. 12132359 - Electric actuator (2024-10-29),
5. 12088175 - Electric pump (2024-09-10),
6. 12081070 - Pump (2024-09-03),
7. 12038006 - Electric pump including a motor unit and an axially extending attachment surface (2024-07-16),
8. 12025124 - Electric pump (2024-07-02),
9. 12007253 - Rotation angle detecting device and electric actuator (2024-06-11),
10. 11976739 - Solenoid valve (2024-05-07),
11. 11973380 - Electric pump (2024-04-30),
12. 11962227 - Electric actuator (2024-04-16),
13. 11920591 - Electric oil pump (2024-03-05),
14. 11894790 - Motor driving control substrate and motor-driven oil pump (2024-02-06),
15. D1005341 - Electric oil pump (2023-11-21),
Company Overview
Nidec Tosok Corporation, headquartered in Kanagawa, Japan, specializes in the development and manufacturing of advanced electric pumps and related technologies. The company focuses on electric actuators, electromagnetic valves, and motor control devices, catering primarily to the automotive sector. Their expertise extends to vehicle cooling systems, hydraulic control apparatuses, solenoid valves, and pressure sensors, positioning them as a key player in innovative automotive engineering solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

145 Patents

#28 in Kanagawa

#875 in Japan

#5,627 in the World

Kanagawa, JP
Kanagawa, Japan

Nidec Tosok Corporation

Forward Citations = 122

120 inventors:

goldMedal Hiroshi Shirai (21 out of 63 patents)

silverMedal Yutaka Uematsu (20 out of 88 patents)

bronzeMedal Shigehiro Kataoka (20 out of 23 patents)

4.  Toshiaki Nakamura (19 out of 20 patents)

5.  Shuichi Kinjo (18 out of 18 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nidec Tosok Corporation. Retrieved from https://idiyas.com/company/nidec-tosok

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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