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Yamanashi, Japan

Yamanashi Electronics Co., Ltd.

USPTO Granted Patents = 18

% Expired Patents = 5.6

Forward Citations = 128

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69 inventors (with patents filed for the assignee):

Hajime Suzuki (7 out of 34 patents)

Kenichi Fujimori (4 out of 4 patents)

Masahiro Horigome (3 out of 3 patents)

4. Yoshitaro Nakayama (3 out of 3 patents)

5. Kazuhito Dohi (3 out of 3 patents)

6. Hideki Nakamura (2 out of 6 patents)

7. Tetsuya Sakuma (2 out of 3 patents)

8. Toshihiko Koizumi (2 out of 4 patents)

9. Fuminori Tsuruta (2 out of 2 patents)

10. Tsuneo Isomura (2 out of 2 patents)

11. Tadaichi Murata (2 out of 2 patents)

12. Jiro Fukasawa (2 out of 2 patents)

13. Minoru Kumakura (2 out of 15 patents)

14. Yasuo Fujii (1 out of 12 patents)

15. Tetsuya Nakamura (1 out of 83 patents)

18 patents: Sort by Forward Citations

1. 8263297 - Electrophotographic photoconductor and electrophotographic apparatus (2012-09-11),

2. 7811738 - Image forming method (2010-10-12),

3. 7704655 - Electrophotographic photoreceptor and electrophotographic apparatus (2010-04-27),

4. 7629096 - Electrophotographic photoreceptor with an undercoat layer containing a polyimide resin and electrophotographic apparatus with the photoreceptor (2009-12-08),

5. 7195851 - Charge-transfer material and process for producing the same, electron-transfer agent, photoreceptor for electrophotography and organic electroluminescence element using said charge-transfer material (2007-03-27),

6. 5876892 - Electrophotographic photoreceptor with polycarbonate copolymer and (1999-03-02),

7. 5494766 - Electrophotographic photoreceptor (1996-02-27),

8. 5443933 - Electrophotographic photoreceptor (1995-08-22),

9. 5399453 - Electrophotograhic photoreceptor (1995-03-21),

10. 5263517 - Toner pack for use with the developing device and method of filling up (1993-11-23),

11. 5188057 - Developing apparatus (1993-02-23),

12. 5181071 - Apparatus for evaluating characteristics of photosensitive drum for (1993-01-19),

13. 5175588 - Developing device (1992-12-29),

14. 5061584 - Electrophotographic photoreceptor (1991-10-29),

15. 5051778 - Electrophotographic copying machine which integrates components having (1991-09-24),

Company Overview

Yamanashi Electronics Co., Ltd. is a prominent player in the electronics manufacturing sector, specializing in the development and production of advanced electronic components and systems. The company focuses on innovative technologies that cater to various industries, including telecommunications, automotive, and consumer electronics. With a commitment to quality and precision, Yamanashi Electronics leverages its expertise to deliver reliable solutions that meet the evolving demands of the global market, primarily serving clients in Japan and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

18 Patents

#9 in Yamanashi 400-0862

#3,124 in Japan

#34,244 in the World

Yamanashi, Japan

Yamanashi Electronics Co., Ltd.

Forward Citations = 128

69 inventors:

Hajime Suzuki (7 out of 34 patents)

Kenichi Fujimori (4 out of 4 patents)

Masahiro Horigome (3 out of 3 patents)

4. Yoshitaro Nakayama (3 out of 3 patents)

5. Kazuhito Dohi (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yamanashi Electronics Co., Ltd.. Retrieved from https://idiyas.com/company/yamanashi-electronics-company

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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