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Atsugi-Shi, Japan

Hitachi Unisia Automotive, Ltd.

USPTO Granted Patents = 49

Forward Citations = 234

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60 inventors (with patents filed for the assignee):

Kenichi Machida (7 out of 78 patents)

Hajime Hosoya (4 out of 37 patents)

Isamu Iizuka (4 out of 10 patents)

4. Chiharu Nakazawa (3 out of 39 patents)

5. Masahiko Watanabe (3 out of 41 patents)

6. Koichi Kusuyama (3 out of 6 patents)

7. Masato Kumagai (3 out of 23 patents)

8. Tamotsu Todo (3 out of 16 patents)

9. Toru Mashimo (3 out of 5 patents)

10. Naotaka Nakura (3 out of 6 patents)

11. Ryo Miyakoshi (2 out of 69 patents)

12. Masaaki Iijima (2 out of 8 patents)

13. Junichi Motojima (2 out of 7 patents)

14. Hisanori Ozaki (2 out of 5 patents)

15. Hikaru Morita (2 out of 4 patents)

Core Competencies:

Rotation Angle Sensor

Brake Liquid Pressure Control

Variable Valve Timing

Fuel Injection Valve

Misfire Detection

Traction Distribution Control

Air-Fuel Ratio Control

Power Steering System

Hydraulic Control Apparatus

Brushless Motor Control

Fuel Supply System

Piston Design

49 patents: Sort by Forward Citations

1. 7355390 - Rotation angle sensor (2008-04-08),

2. 7249808 - Brake liquid pressure control unit of on-vehicle device and its manufacturing method (2007-07-31),

3. 7191054 - Fail-safe control apparatus for internal combustion engine equipped with variable valve characteristic mechanisms and method thereof (2007-03-13),

4. 7168638 - Fuel injection valve (2007-01-30),

5. 7117728 - Misfire detecting apparatus for internal combustion engine and method thereof (2006-10-10),

6. 7117727 - Misfire detecting apparatus for internal combustion engine and method thereof (2006-10-10),

7. 6974302 - Turbine fuel pump (2005-12-13),

8. 6915690 - Fuel gauge (2005-07-12),

9. 6874710 - Fuel injection valve (2005-04-05),

10. 6865470 - Traction distribution control system for four-wheel drive vehicle (2005-03-08),

11. 6863050 - Apparatus and method for controlling intake air amount of internal combustion engine (2005-03-08),

12. 6860245 - Control apparatus of variable valve timing mechanism and method thereof (2005-03-01),

13. 6857314 - System for detecting remaining amount of liquid in tank (2005-02-22),

14. 6854262 - Air-fuel ratio control apparatus of internal combustion engine and method thereof (2005-02-15),

15. 6851507 - Power steering system (2005-02-08),

Hitachi Unisia Automotive, Ltd. is a leading global automotive technology company that specializes in the development, manufacturing, and supply of automotive systems and components. With a focus on innovation, quality, and customer satisfaction, Hitachi Unisia Automotive provides a wide range of products including engine management systems, electric powertrain systems, chassis systems, and vehicle control systems. Leveraging their expertise and advanced technologies, the company contributes to the advancement of the automotive industry and the creation of a sustainable future.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

49 Patents

#1 in Atsugi-Shi

#1,702 in Japan

#13,866 in the World

Atsugi-Shi, Japan

Hitachi Unisia Automotive, Ltd.

Forward Citations = 234

60 inventors:

Kenichi Machida (7 out of 78 patents)

Hajime Hosoya (4 out of 37 patents)

Isamu Iizuka (4 out of 10 patents)

4. Chiharu Nakazawa (3 out of 39 patents)

5. Masahiko Watanabe (3 out of 41 patents)

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