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Hitachi Automotive Eng. Co., Ltd.

USPTO Granted Patents = 11

Forward Citations = 133

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24 inventors (with patents filed for the assignee):

Masami Nagano (2 out of 57 patents)

Keiichi Mashino (2 out of 46 patents)

Masanori Kubota (2 out of 11 patents)

4. Hideaki Ishikawa (1 out of 9 patents)

5. Mamoru Nemoto (1 out of 24 patents)

6. Yoshikazu Hoshi (1 out of 30 patents)

7. Kunio Ishiyama (1 out of 6 patents)

8. Takeshi Atago (1 out of 75 patents)

9. Tomiya Itakura (1 out of 6 patents)

10. Hiroshi Kamifuji (1 out of 11 patents)

11. Osamu Abe (1 out of 17 patents)

12. Sadayasu Ueno (1 out of 42 patents)

13. Tomoo Ito (1 out of 12 patents)

14. Shigenori Hosowari (1 out of 2 patents)

15. Kunio Kobayashi (1 out of 4 patents)

11 patents: Sort by Forward Citations

1. 5467752 - Method and apparatus for controlling the fuel injection/ignition timing (1995-11-21),

2. 5070728 - Throttle sensor (1991-12-10),

3. 5069183 - Multi-cylinder engine control method and electronic control apparatus (1991-12-03),

4. 4869224 - In-engine deposit detection apparatus for engine control system (1989-09-26),

5. 4833581 - Power supply for a magnetron (1989-05-23),

6. 4802543 - Electric power steering device (1989-02-07),

7. 4788486 - Vehicular power supply system having a plurality of power supply voltages (1988-11-29),

8. 4774464 - Magnetic rotary sensor for detecting absolute position of rotating body (1988-09-27),

9. 4572134 - Double carburetor (1986-02-25),

10. 4563631 - Voltage regulator for charging generator (1986-01-07),

11. 4547852 - Engine control apparatus and control method (1985-10-15),

Hitachi Automotive Systems, Ltd. is a global manufacturer of automotive parts and advanced systems including electrification technologies. With a focus on innovation and sustainability, we provide high-quality products for vehicles worldwide. Our goal is to contribute to a greener and safer automotive industry through cutting-edge solutions and partnerships.

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Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

11 Patents

#1 in Katsuta

#4,042 in Japan

#50,255 in the World

Hitachi Automotive Eng. Co., Ltd.

Forward Citations = 133

24 inventors:

Masami Nagano (2 out of 57 patents)

Keiichi Mashino (2 out of 46 patents)

Masanori Kubota (2 out of 11 patents)

4. Hideaki Ishikawa (1 out of 9 patents)

5. Mamoru Nemoto (1 out of 24 patents)

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