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Kanagawa, Japan

Atsugi Motor Parts Company, Limited

USPTO Granted Patents = 74

Forward Citations = 1,614

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95 inventors (with patents filed for the assignee):

Fumiyuki Yamaoka (8 out of 40 patents)

Shinobu Kakizaki (7 out of 36 patents)

Masanori Kouda (7 out of 7 patents)

4. Toshinori Aihara (6 out of 12 patents)

5. Koichi Komatsu (5 out of 7 patents)

6. Junichi Emura (5 out of 13 patents)

7. Yukio Sudo (5 out of 8 patents)

8. Tomoyoshi Sekiguchi (5 out of 6 patents)

9. Seiji Suga (4 out of 37 patents)

10. Satoshi Kohno (4 out of 12 patents)

11. Shinichi Io (3 out of 6 patents)

12. Tatsuyuki Matsuya (3 out of 5 patents)

13. Shigeru Kikushima (3 out of 7 patents)

14. Junkichi Konishi (3 out of 5 patents)

15. Shinichi Komatsu (3 out of 3 patents)

Core Competencies:

Hydraulic Shock Absorber

Variable-Delivery Vane-Type Rotary Compressor

Power Assist Device

Automotive Suspension System

Pressure Control Valve

Electromagnetic Flow Control Valve

Piston Structure

Torque Sensor

Fan Drive Clutch

Intake Valve Timing Control

Rotary Actuator

Damping Characteristics

74 patents: Sort by Forward Citations

1. 5316113 - Hydraulic shock absorber (1994-05-31),

2. 5177966 - Fluid pump arrangement with flow regulation feature (1993-01-12),

3. 5174338 - Pressure control valve unit (1992-12-29),

4. 5148895 - Rotary actuator for variable damping force shock absorber (1992-09-22),

5. 5127312 - Power assist device for automotive steering system (1992-07-07),

6. 5125804 - Variable-delivery vane-type rotary compressor (1992-06-30),

7. 5114325 - Rotary internal gear pump having teeth with asymmetrical trailing edges (1992-05-19),

8. 5087868 - Rotary actuator (1992-02-11),

9. 5067393 - Piston head block for internal combustion engine (1991-11-26),

10. 5063894 - Pressure-diecast light-alloy piston for internal combustion engines (1991-11-12),

11. 5055015 - Seal structure for rotary body and vane-type rotary compressor employing (1991-10-08),

12. 5049759 - Signal processing system for period-to-voltage conversion (1991-09-17),

13. 5049052 - Light weight vane-type rotary compressor (1991-09-17),

14. 5044908 - Vane-type rotary compressor with side plates having separate boss and (1991-09-03),

15. 5042364 - Piston structure for internal combustion engine (1991-08-27),

Atsugi Motor Parts Company, Limited is a leading manufacturer and supplier of automotive parts based in Japan. With over 50 years of experience, we provide high-quality components for various vehicles, including cars, motorcycles, and commercial vehicles. Our extensive range of products includes engine parts, suspension systems, electrical components, and much more. We are committed to delivering superior performance, durability, and reliability to meet the demanding needs of the automotive industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

74 Patents

#41 in Kanagawa

#1,331 in Japan

#9,842 in the World

Kanagawa, Japan

Atsugi Motor Parts Company, Limited

Forward Citations = 1,614

95 inventors:

Fumiyuki Yamaoka (8 out of 40 patents)

Shinobu Kakizaki (7 out of 36 patents)

Masanori Kouda (7 out of 7 patents)

4. Toshinori Aihara (6 out of 12 patents)

5. Koichi Komatsu (5 out of 7 patents)

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