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For the Inventor, By the Inventor

Hitachi, Japan

Hitachi Haramachi Semi-Conductor, Ltd.

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USPTO Granted Patents = 14

Forward Citations = 434

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40 inventors (with patents filed for the assignee):

goldMedal Mutsuhiro Mori (5 out of 91 patents)

silverMedal Naoki Sakurai (5 out of 29 patents)

bronzeMedal Hidetoshi Arakawa (5 out of 6 patents)

4.  Yasumiti Yasuda (3 out of 3 patents)

5.  Hiroshi Owada (3 out of 3 patents)

6.  Tatsuo Shimura (3 out of 7 patents)

7.  Yoshiro Mikami (2 out of 79 patents)

8.  Ryuichi Saito (2 out of 81 patents)

9.  Hideki Miyazaki (2 out of 118 patents)

10.  Akihiko Kanouda (2 out of 74 patents)

11.  Yoshiharu Nagae (2 out of 58 patents)

12.  Katsuyuki Funahata (2 out of 15 patents)

13.  Makoto Tsumura (2 out of 69 patents)

14.  Masaaki Kitajima (2 out of 40 patents)

15.  Kenichi Onda (2 out of 43 patents)


14 patents:

1. 6064358 - Liquid crystal display device and driving method therefor (2000-05-16),
2. 5561440 - Liquid crystal display device and driving method therefor (1996-10-01),
3. 5412558 - Semiconductor integrated circuit unit (1995-05-02),
4. 5278443 - Composite semiconductor device with Schottky and pn junctions (1994-01-11),
5. 5253156 - Semiconductor integrated circuit unit (1993-10-12),
6. 5184272 - High-side switch with overcurrent protecting circuit (1993-02-02),
7. 5166760 - Semiconductor Schottky barrier device with pn junctions (1992-11-24),
8. 5101244 - Semiconductor schottky device with pn regions (1992-03-31),
9. 5083180 - Lateral-type semiconductor device (1992-01-21),
10. 4775916 - Pressure contact semiconductor device (1988-10-04),
11. 4758942 - Turn-off control circuit for a gate turn-off thyristor (1988-07-19),
12. 4740723 - Semiconductor switch (1988-04-26),
13. 4665505 - Write circuit for use in semiconductor storage device (1987-05-12),
14. 4305088 - Semiconductor device including means for alleviating stress caused by (1981-12-08),
Company Overview
Hitachi Haramachi Semi-Conductor, Ltd. is a prominent player in the semiconductor industry, specializing in the development and manufacturing of advanced semiconductor devices. The company focuses on innovative technologies that cater to various sectors, including consumer electronics, automotive, and industrial applications. With a commitment to research and development, Hitachi Haramachi aims to enhance performance and efficiency in electronic systems, contributing to the evolution of smart technologies and sustainable solutions in the global market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

14 Patents

#7 in Hitachi

#3,583 in Japan

#42,293 in the World

Hitachi, JP
Hitachi, Japan

Hitachi Haramachi Semi-Conductor, Ltd.

Forward Citations = 434

40 inventors:

goldMedal Mutsuhiro Mori (5 out of 91 patents)

silverMedal Naoki Sakurai (5 out of 29 patents)

bronzeMedal Hidetoshi Arakawa (5 out of 6 patents)

4.  Yasumiti Yasuda (3 out of 3 patents)

5.  Hiroshi Owada (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Haramachi Semi-Conductor, Ltd.. Retrieved from https://idiyas.com/company/hitachi-haramachi-semi-conductor

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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