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Hitachi Astemo Ltd.

USPTO Granted Patents = 1,249

EPO Patents = 372

Trademarks = 53

Forward Citations = 341

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1,384 inventors (with patents filed for the assignee):

Hideyuki Sakamoto (45 out of 71 patents)

Ryusuke Hirao (22 out of 38 patents)

Toshiyuki Ajima (22 out of 47 patents)

4. Nobuyuki Ichimaru (19 out of 47 patents)

5. Hiroshi Nakano (19 out of 124 patents)

6. Takafumi Hara (19 out of 38 patents)

7. Mikio Yamashita (17 out of 42 patents)

8. Osamu Mukaihara (16 out of 35 patents)

9. Akira Uenodan (15 out of 46 patents)

10. Yosuke Murakami (15 out of 64 patents)

11. Kenichi Nakayama (15 out of 60 patents)

12. Kazuyoshi Serizawa (15 out of 58 patents)

13. Akira Kuriyama (15 out of 37 patents)

14. Yoichiro Kobayashi (14 out of 26 patents)

15. Takahiro Miki (13 out of 102 patents)

Core Competencies:

Damping Force Adjustment

Electric Power Steering

Synchronous Motor Driving

Vehicle Control System

Automatic Emergency Braking

In-Vehicle Camera Calibration

Object Sensing Device

Fuel Pump Technology

Electronic Control Unit

Variable Displacement Oil Pump

Shock Absorber Technology

Travel Road Recognition

1,249 patents: Sort by Forward Citations

1. 12531501 - Power conversion device and drive device (2026-01-20),

2. 12531458 - Motor drive device (2026-01-20),

3. 12530971 - Driving assistance device (2026-01-20),

4. 12530801 - Image processing device and image processing method (2026-01-20),

5. 12530462 - Electronic control device and security verification method for electronic control device (2026-01-20),

6. 12530221 - Object recognition device (2026-01-20),

7. 12529755 - Host vehicle position estimation device and host vehicle position estimation method (2026-01-20),

8. 12528453 - Vehicle control apparatus, vehicle control method, and vehicle control system (2026-01-20),

9. 12528449 - State quantity calculation device, control device, and vehicle (2026-01-20),

10. 12528363 - Control apparatus for vehicle, control system for vehicle, and control method for vehicle (2026-01-20),

11. 12526913 - Electronic device (2026-01-13),

12. 12525901 - In-vehicle control device and control method for in-vehicle control device (2026-01-13),

13. 12525838 - Stator of dynamo-electric machine (2026-01-13),

14. 12525034 - Image processing device (2026-01-13),

15. 12524537 - Electronic control system (2026-01-13),

HITACHI ASTEMO LTD. is a global manufacturing company specializing in automotive systems and components. With a focus on innovation and sustainability, the company provides a wide range of products such as electric powertrain systems, mobility solutions, and advanced electronics. Through advanced technologies and engineering expertise, HITACHI ASTEMO delivers high-quality solutions to meet the evolving demands of the automotive industry.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 20 2026

1,249 Patents

#1 in Ibaraki

#180 in Japan

#779 in the World

Hitachi Astemo Ltd.

Forward Citations = 341

1,384 inventors:

Hideyuki Sakamoto (45 out of 71 patents)

Ryusuke Hirao (22 out of 38 patents)

Toshiyuki Ajima (22 out of 47 patents)

4. Nobuyuki Ichimaru (19 out of 47 patents)

5. Hiroshi Nakano (19 out of 124 patents)

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