For the Inventor, By the Inventor

Enter assignee name

Hitachinaka-shi, Japan

Hitachi Car Engineering Co., Ltd.

USPTO Granted Patents = 248

EPO Patents = 47

Forward Citations = 2,302

Loading Chart...

Loading Chart...

350 inventors (with patents filed for the assignee):

Shinya Igarashi (36 out of 72 patents)

Izumi Watanabe (34 out of 62 patents)

Keiichi Nakada (25 out of 45 patents)

4. Suetaro Shibukawa (21 out of 46 patents)

5. Fumio Tajima (20 out of 85 patents)

6. Osamu Koizumi (19 out of 52 patents)

7. Shouichi Kawamata (18 out of 38 patents)

8. Keiji Hanzawa (16 out of 115 patents)

9. Junichi Horie (16 out of 33 patents)

10. Masamichi Yamada (16 out of 119 patents)

11. Keiji Oda (16 out of 30 patents)

12. Masahiro Matsumoto (15 out of 142 patents)

13. Kei Ueyama (15 out of 19 patents)

14. Hiromu Kikawa (14 out of 21 patents)

15. Hiroyuki Saito (13 out of 44 patents)

Core Competencies:

Synchronous Electric Motor

Permanent Magnet Motor

Torque Controller

Pressure Sensor

Flow Rate Measurement

Fuel Supply Pump

Vector Control

Electronic Throttle Control

Gas Flow Measurement

Motor Controller

Semiconductor Power Converter

Vehicle Drive Device

248 patents: Sort by Forward Citations

1. 8766575 - Synchronous electric motor drive system (2014-07-01),

2. 8305019 - Torque controller for permanent magnet synchronous motor (2012-11-06),

3. 8302275 - Iron core and method of manufacturing the same and apparatus for manufacturing the same (2012-11-06),

4. 8242587 - Electronic device and pressure sensor (2012-08-14),

5. 8198775 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2012-06-12),

6. 8106619 - Position sensorless controller for permanent magnet motor (2012-01-31),

7. RE42940 - Air flow rate control apparatus (2011-11-21),

8. RE42529 - Thermal flow rate measuring device (2011-07-11),

9. 7956506 - Driving apparatus (2011-06-07),

10. 7919941 - Semiconductor power converter (2011-04-05),

11. 7851959 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-12-14),

12. 7847462 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-12-07),

13. 7821223 - Vector controller for a permanent magnet motor and inverter module (2010-10-26),

14. 7808144 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-10-05),

15. 7752908 - Equipment for measuring gas flow rate having an adjacent external surface protrusion (2010-07-13),

Hitachi Car Engineering Co., Ltd. is a subsidiary of Hitachi, Ltd. specializing in automotive engineering services. They provide a wide range of solutions including automotive development, testing, and consulting services. Collaborating with automotive manufacturers, they contribute to the advancement of automobile technologies and the development of innovative mobility solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

248 Patents

#1 in Hitachinaka-shi

#585 in Japan

#3,386 in the World

Hitachinaka-shi, Japan

Hitachi Car Engineering Co., Ltd.

Forward Citations = 2,302

350 inventors:

Shinya Igarashi (36 out of 72 patents)

Izumi Watanabe (34 out of 62 patents)

Keiichi Nakada (25 out of 45 patents)

4. Suetaro Shibukawa (21 out of 46 patents)

5. Fumio Tajima (20 out of 85 patents)

Please report any incorrect information to support@idiyas.com

Loading…