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Jatco Transtechnology Ltd.

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USPTO Granted Patents = 47

% Expired Patents = 27.7

Forward Citations = 647

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47 inventors (with patents filed for the assignee):

Yuji Saito (5 out of 9 patents)

Kenji Nakashima (3 out of 9 patents)

Osamu Sato (3 out of 121 patents)

4. Tatsuo Ochiai (3 out of 39 patents)

5. Tatsuya Imamura (3 out of 20 patents)

6. Yasushi Fujita (3 out of 14 patents)

7. Takashi Murasugi (3 out of 26 patents)

8. Kazuhiro Takatori (3 out of 17 patents)

9. Akira Hino (3 out of 3 patents)

10. Taku Sugano (2 out of 7 patents)

11. Makoto Suzuki (2 out of 9 patents)

12. Yasuo Sumi (2 out of 9 patents)

13. Masato Fujikawa (2 out of 4 patents)

14. Satoshi Sakakibara (2 out of 2 patents)

15. Yoshikazu Miyagawa (2 out of 2 patents)

Core Competencies:

Solenoid Valve Circuit

Continuously Variable Transmission

Shift Control System

Hybrid Vehicle

Hydraulic Control System

Electric Torque Converter

Clutch Construction

Driving Force Control

Navigation Apparatus

Output Shaft

Drum Supporting Structure

Controller

47 patents: Sort by Forward Citations

1. 6799598 - Solenoid valve circuit for automatic transmission (2004-10-05),

2. 6723014 - Control device of continuously variable transmission (2004-04-20),

3. 6695742 - Control device for a continuously variable transmission (2004-02-24),

4. 6659912 - Shift control system for automatic transmission (2003-12-09),

5. 6584394 - Shift control system of automatic transmission (2003-06-24),

6. 6579175 - Game system for occupying a team position in a game area disposed between a plurality of teams (2003-06-17),

7. 6572510 - Control device of automatic transmission (2003-06-03),

8. 6569054 - Parallel hybrid vehicle (2003-05-27),

9. 6554741 - Shift control device for automatic transmission (2003-04-29),

10. 6547694 - Hydraulic control system for a continuously variable transmission (2003-04-15),

11. 6547691 - Shift control system for continuously variable transmission (2003-04-15),

12. 6520882 - Shift control system for automatic transmission (2003-02-18),

13. 6520853 - Game system (2003-02-18),

14. 6519521 - Shift control system for automatic transmission (2003-02-11),

15. 6517459 - System and method of determining completion of piston stroke in automatic transmission (2003-02-11),

Company Overview

Jatco Transtechnology Ltd., headquartered in Fuji, Japan, specializes in the development and manufacturing of advanced automotive transmission systems. The company focuses on technologies such as automatic transmissions, continuously variable transmissions, and hybrid vehicle systems. Jatco is also engaged in the innovation of shift control systems, hydraulic control systems, electric torque converters, and clutch constructions, contributing significantly to the evolution of automotive engineering and performance.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

47 Patents

#2 in Fuji

#1,781 in Japan

#14,840 in the World

Jatco Transtechnology Ltd.

Forward Citations = 647

47 inventors:

Yuji Saito (5 out of 9 patents)

Kenji Nakashima (3 out of 9 patents)

Osamu Sato (3 out of 121 patents)

4. Tatsuo Ochiai (3 out of 39 patents)

5. Tatsuya Imamura (3 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jatco Transtechnology Ltd.. Retrieved from https://idiyas.com/company/jatco-transtechnology

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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