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For the Inventor, By the Inventor

Hitachi, Japan

Hitachi Control Systems, Inc.


USPTO Granted Patents = 9

Forward Citations = 212

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22 inventors (with patents filed for the assignee):

goldMedal Ryoichi Sasaki (3 out of 38 patents)

silverMedal Kazuo Takaragi (3 out of 67 patents)

bronzeMedal Motohisa Funabashi (3 out of 57 patents)

4.  Fusao Nakagawa (3 out of 3 patents)

5.  Shinichiro Miyaoka (2 out of 22 patents)

6.  Katsumi Kawano (1 out of 56 patents)

7.  Yasuhiko Nagai (1 out of 12 patents)

8.  Shigenobu Yanai (1 out of 3 patents)

9.  Teruji Sekozawa (1 out of 34 patents)

10.  Kinji Mori (1 out of 66 patents)

11.  Akihiko Kamiyama (1 out of 1 patent)

12.  Kuniaki Matsumoto (1 out of 15 patents)

13.  Setsuo Tsuruta (1 out of 9 patents)

14.  Shigeyuki Shimauchi (1 out of 3 patents)

15.  Tohru Otokita (1 out of 1 patent)


9 patents:

1. 5299287 - Information processing system (1994-03-29),
2. 5208898 - Adaptive knowledge inference method and system (1993-05-04),
3. 5103479 - Encipher method and decipher method (1992-04-07),
4. 5003469 - Method and apparatus for processing data in a decentralized processing (1991-03-26),
5. 4982429 - Encipher method and decipher method (1991-01-01),
6. 4969190 - Encrypting system of data (1990-11-06),
7. 4683549 - Sequence control method and apparatus (1987-07-28),
8. 4569012 - Method and system for controlling fluid transportation in a pipe network (1986-02-04),
9. 4562552 - Method and apparatus for controlling pressure and flow in water (1985-12-31),
Company Overview
Hitachi Control Systems, Inc. is a leading provider of advanced control systems for various industries. With a focus on innovation and quality, they offer a wide range of solutions to optimize operational efficiency and performance. Their expertise in control systems technology has earned them a reputation for reliability and excellence in the industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

9 Patents

#8 in Hitachi

#4,696 in Japan

Hitachi, JP
Hitachi, Japan

Hitachi Control Systems, Inc.

Forward Citations = 212

22 inventors:

goldMedal Ryoichi Sasaki (3 out of 38 patents)

silverMedal Kazuo Takaragi (3 out of 67 patents)

bronzeMedal Motohisa Funabashi (3 out of 57 patents)

4.  Fusao Nakagawa (3 out of 3 patents)

5.  Shinichiro Miyaoka (2 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Control Systems, Inc.. Retrieved from https://idiyas.com/company/hitachi-control-systems

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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