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Japan Electronic Control Systems Company, Limited

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USPTO Granted Patents = 130

Forward Citations = 1,386

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86 inventors (with patents filed for the assignee):

Shinpei Nakaniwa (32 out of 34 patents)

Naoki Tomisawa (28 out of 32 patents)

Kazumitsu Kobayashi (13 out of 20 patents)

4. Yoshiki Yuzuriha (12 out of 13 patents)

5. Junichi Furuya (11 out of 30 patents)

6. Masuo Kashiwabara (10 out of 25 patents)

7. Masaru Kuribara (8 out of 10 patents)

8. Akihiko Araki (6 out of 7 patents)

9. Akira Uchikawa (6 out of 6 patents)

10. Seiichi Otani (6 out of 8 patents)

11. Yukio Hoshino (5 out of 7 patents)

12. Tomoyuki Hirose (5 out of 5 patents)

13. Kazuo Suzuki (4 out of 47 patents)

14. Fusao Tachibana (4 out of 15 patents)

15. Shinichi Kurosu (4 out of 8 patents)

Core Competencies:

Fuel Injection

Air/Fuel Ratio Control

Engine Diagnostics

Torque Detection

Throttle Valve Control

Automatic Transmission

Hydraulic Pressure Control

Idling Speed Control

Alcohol Concentration Sensor

Vehicle Control Systems

Misfire Detection

Refrigerant Charge Detection

130 patents: Sort by Forward Citations

1. 5488311 - Apparatus and method for measuring alcohol concentration of liquid (1996-01-30),

2. 5419206 - Phase independent torque detection and processing circuit for sensing (1995-05-30),

3. 5408648 - Method and apparatus for diagnosing CPU for CPU-runaway-preventing (1995-04-18),

4. 5355858 - Assist-air type fuel injection method and device for internal combustion (1994-10-18),

5. 5353764 - Electronically controlled fuel supply method and device for internal (1994-10-11),

6. 5350034 - Apparatus for controlling opening angle of throttle valve in internal (1994-09-27),

7. 5343745 - Apparatus and method for detecting intake air quantity for internal (1994-09-06),

8. 5333943 - Method and system for anti-lock braking in automobile by measuring brake (1994-08-02),

9. 5325946 - Control device and control method for automatic transmission for vehicle (1994-07-05),

10. 5318159 - Control device and control method using torque feedback of a lock-up (1994-06-07),

11. 5309790 - System and method for controlling working hydraulic pressure for (1994-05-10),

12. 5297046 - System and method for learning and controlling air/fuel mixture ratio (1994-03-22),

13. 5292288 - Speed-changing hydraulic oil pressure control apparatus for an automatic (1994-03-08),

14. 5285639 - Method and system for controlling secondary air for internal combustion (1994-02-15),

15. 5276625 - System for detecting and adjusting for variation in cylinder pressure in (1994-01-04),

Company Overview

Japan Electronic Control Systems Company, Limited, based in Isesaki, Japan, specializes in the development and manufacturing of advanced control systems for internal combustion engines. The company focuses on critical technology areas such as fuel injection, air/fuel ratio control, and engine diagnostics, contributing to enhanced engine performance and efficiency. Additionally, it engages in research related to torque detection, throttle valve control, and automatic transmission systems, positioning itself as a key player in automotive engineering and innovation.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

130 Patents

#2 in Isesaki

#948 in Japan

#6,184 in the World

Japan Electronic Control Systems Company, Limited

Forward Citations = 1,386

86 inventors:

Shinpei Nakaniwa (32 out of 34 patents)

Naoki Tomisawa (28 out of 32 patents)

Kazumitsu Kobayashi (13 out of 20 patents)

4. Yoshiki Yuzuriha (12 out of 13 patents)

5. Junichi Furuya (11 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Japan Electronic Control Systems Company, Limited. Retrieved from https://idiyas.com/company/japan-electronic-control-systems-company

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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