For the Inventor, By the Inventor

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Nec Corportion

USPTO Granted Patents = 12

% Expired Patents = 8.3

Forward Citations = 129

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13 inventors (with patents filed for the assignee):

Hirofumi Aoki (1 out of 73 patents)

Koichi Ishida (1 out of 64 patents)

Fumihiko Kato (1 out of 18 patents)

4. Soichi Tsumura (1 out of 25 patents)

5. Hideo Makishima (1 out of 30 patents)

6. Yoshinao Miura (1 out of 3 patents)

7. Hisashi Ueno (1 out of 3 patents)

8. Mamoru Nagamoto (1 out of 3 patents)

9. Yasufumi Masaike (1 out of 3 patents)

10. Akira Denda (1 out of 7 patents)

11. Satoshi Kawasaki (1 out of 5 patents)

12. Masaru Ichimura (1 out of 1 patent)

13. Takeshi Hara (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 8238432 - Weighted prediction information calculation method, apparatus, and program, and video coding method, apparatus, and program (2012-08-07),

2. 6346465 - Semiconductor device with silicide contact structure and fabrication method thereof (2002-02-12),

3. 6100762 - Operational amplifier having a wide input/output range and an improved (2000-08-08),

4. 6091459 - On-screen-display circuit (2000-07-18),

5. 5918166 - Level control circuit for portable radio communication apparatus (1999-06-29),

6. 5844924 - Main signal memory supervisory control system using odd-even alternative (1998-12-01),

7. 5696406 - Semiconductor device and method for fabricating the same (1997-12-09),

8. 5680011 - Cold cathode density-modulated type electron gun and microwave tube (1997-10-21),

9. 5673158 - Shock absorbing device for a magnetic disk drive (1997-09-30),

10. 5544141 - Cross-talk canceler for optical disk reading mechanism (1996-08-06),

11. 4719564 - Interpreter linkage system for linking extension interpreters to a basic (1988-01-12),

12. 4719367 - Schmitt trigger circuit (1988-01-12),

Company Overview

NEC Corporation, headquartered in Tokyo, Japan, is a global leader in IT and network solutions. The company specializes in a wide range of technologies, including cloud computing, artificial intelligence, and cybersecurity, catering to various sectors such as telecommunications, public safety, and transportation. NEC is committed to advancing society through innovative solutions that enhance operational efficiency and security, while also focusing on sustainability and social value creation in its technology development initiatives.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

12 Patents

#1,729 in Tokyo

#3,936 in Japan

#48,209 in the World

Nec Corportion

Forward Citations = 129

13 inventors:

Hirofumi Aoki (1 out of 73 patents)

Koichi Ishida (1 out of 64 patents)

Fumihiko Kato (1 out of 18 patents)

4. Soichi Tsumura (1 out of 25 patents)

5. Hideo Makishima (1 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nec Corportion. Retrieved from https://idiyas.com/company/nec-corportion

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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