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Seiko Npc Corporation

USPTO Granted Patents = 14

% Expired Patents = 21.4

EPO Patents = 3

Trademarks = 1

Forward Citations = 44

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24 inventors (with patents filed for the assignee):

Masayuki Takahashi (5 out of 12 patents)

Masahiro Oshio (3 out of 26 patents)

Takayuki Kikuchi (3 out of 74 patents)

4. Yoshinao Yanagisawa (3 out of 10 patents)

5. Toshihiro Nishida (3 out of 3 patents)

6. Yoshihiro Kobayashi (1 out of 73 patents)

7. Masayuki Takahashi (1 out of 54 patents)

8. Shinichi Watanabe (1 out of 53 patents)

9. Shigeki Sakai (1 out of 21 patents)

10. Kenji Sato (1 out of 16 patents)

11. Shoji Yokoi (1 out of 9 patents)

12. Yasuhiro Komiya (1 out of 74 patents)

13. Hideto Naruse (1 out of 5 patents)

14. Yutaka Takada (1 out of 20 patents)

15. Shinnosuke Kano (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 12635582 - Optical device and method of manufacturing optical device (2026-05-19),

2. 9046366 - Signal processing circuit, physical quantity detection apparatus, angular velocity detection apparatus, integrated circuit device, and electronic instrument (2015-06-02),

3. 8850887 - Detection circuit, physical quantity detection apparatus, angular velocity detection apparatus, integrated circuit device, and electronic instrument (2014-10-07),

4. 8618890 - Angular velocity detection apparatus (2013-12-31),

5. 8375790 - Physical quantity detection apparatus, method of controlling physical quantity detection apparatus, abnormality diagnosis system, and abnormality diagnosis method (2013-02-19),

6. 8141425 - Angular rate detection apparatus providing stable output (2012-03-27),

7. 7667252 - Semiconductor nonvolatile storage element and method of fabricating the same (2010-02-23),

8. 7441458 - Systems for measuring physical quantities (2008-10-28),

9. 7397883 - Spread spectrum type clock generation circuit for improving frequency modulation efficiency (2008-07-08),

10. 7271619 - Charge pump circuit reducing noise and charge error and PLL circuit using the same (2007-09-18),

11. 7176432 - Image detection processor and image detection processing method (2007-02-13),

12. 7161419 - Sensor device and a signal amplification device of a small detection signal provided by the sensor (2007-01-09),

13. 7129776 - Bias voltage generator circuit (2006-10-31),

14. 7091797 - MOS-type variable capacitance element and voltage control oscillation circuit (2006-08-15),

Company Overview

Seiko NPC Corporation is a prominent player in the field of electronic components and systems, specializing in the development and manufacturing of high-precision quartz crystals and oscillators. The company leverages advanced technology to cater to various industries, including telecommunications, automotive, and consumer electronics. With a strong emphasis on innovation, Seiko NPC focuses on enhancing the performance and reliability of its products, contributing to the advancement of electronic applications globally.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

14 Patents

#67 in

#3,580 in Japan

#42,249 in the World

Seiko Npc Corporation

Forward Citations = 44

24 inventors:

Masayuki Takahashi (5 out of 12 patents)

Masahiro Oshio (3 out of 26 patents)

Takayuki Kikuchi (3 out of 74 patents)

4. Yoshinao Yanagisawa (3 out of 10 patents)

5. Toshihiro Nishida (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Seiko Npc Corporation. Retrieved from https://idiyas.com/company/seiko-npc

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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