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For the Inventor, By the Inventor

Tokyo, Japan

Hitchi, Ltd.

Calculating rank
USPTO Granted Patents = 9

Forward Citations = 641

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48 inventors (with patents filed for the assignee):

goldMedal Hiromichi Komai (1 out of 18 patents)

silverMedal Hiroki Kitagawa (1 out of 34 patents)

bronzeMedal Ryuichi Saito (1 out of 81 patents)

4.  Hidekazu Aoki (1 out of 9 patents)

5.  Takayuki Yokota (1 out of 6 patents)

6.  Yasuo Wada (1 out of 38 patents)

7.  Mutsuhiro Mori (1 out of 91 patents)

8.  Yoshihiko Koike (1 out of 19 patents)

9.  Seiji Heike (1 out of 9 patents)

10.  Takahiro Kuroha (1 out of 3 patents)

11.  Tomihiro Hashizume (1 out of 39 patents)

12.  Kunihiro Ichikawa (1 out of 11 patents)

13.  Yoshimichi Takano (1 out of 3 patents)

14.  Masanori Oinuma (1 out of 1 patent)

15.  Yasushi Hayasaka (1 out of 20 patents)


9 patents:

1. 8628250 - Support device for supporting propeller shaft and propeller shaft itself (2014-01-14),
2. 6823288 - Service system for air conditioner and server system for monitoring center (2004-11-23),
3. 6636813 - Service life management system for high-temperature part of gas turbine (2003-10-21),
4. 6496695 - Resource-saving event-driven monitoring system and method (2002-12-17),
5. 5929519 - Semiconductor module including switching device chips and diode chips (1999-07-27),
6. D405070 - IC card reader and writer (1999-02-02),
7. 5855553 - Remote surgery support system and method thereof (1999-01-05),
8. 5801472 - Micro-fabricated device with integrated electrostatic actuator (1998-09-01),
9. 5708827 - Spread sheet calculation method and apparatus by extracting an area to (1998-01-13),
Company Overview
Hitchi, Ltd. is a global technology company specializing in innovative solutions for businesses and consumers. With a focus on research and development, Hitchi provides cutting-edge products and services in various industries, including electronics, automotive, and healthcare. Known for their commitment to quality and customer satisfaction, Hitchi continues to drive advancements in technology to improve the lives of people around the world.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#2,022 in Tokyo

#4,706 in Japan

Tokyo, JP
Tokyo, Japan

Hitchi, Ltd.

Forward Citations = 641

48 inventors:

goldMedal Hiromichi Komai (1 out of 18 patents)

silverMedal Hiroki Kitagawa (1 out of 34 patents)

bronzeMedal Ryuichi Saito (1 out of 81 patents)

4.  Hidekazu Aoki (1 out of 9 patents)

5.  Takayuki Yokota (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitchi, Ltd.. Retrieved from https://idiyas.com/company/hitchi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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