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For the Inventor, By the Inventor

Tokyo, Japan

Nec Personal Computers, Ltd.

Calculating rank
USPTO Granted Patents = 10

% Expired Patents = 30.0


Trademarks = 2

Forward Citations = 14

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13 inventors (with patents filed for the assignee):

goldMedal Hidetaka Umetsu (2 out of 2 patents)

silverMedal Tsuyoshi Taira (2 out of 2 patents)

bronzeMedal Takahisa Shirakawa (2 out of 14 patents)

4.  Satoshi Seino (1 out of 5 patents)

5.  Hiroaki Ueda (1 out of 24 patents)

6.  Toshiaki Kano (1 out of 2 patents)

7.  Takahiro Funayama (1 out of 1 patent)

8.  Kazuki Ishikawa (1 out of 2 patents)

9.  Rei Tsubaki (1 out of 1 patent)

10.  Yuichi Sakai (1 out of 12 patents)

11.  Kano Toshiaki (1 out of 1 patent)

12.  Susumu Sakamoto (1 out of 26 patents)

13.  Ryuji Satou (1 out of 1 patent)

14.  Nobuyuki Tanaka (0 patent)

15.  Kazuhito Takai (0 patent)


10 patents:

1. 10460891 - Keyboard device and electronic apparatus (2019-10-29),
2. 10331171 - Display device and electronic apparatus (2019-06-25),
3. 10156866 - Display device and electronic apparatus (2018-12-18),
4. 10108224 - Portable information apparatus (2018-10-23),
5. 9367679 - Input information authentication device, server device, input information authentication system, and program of device (2016-06-14),
6. 9168688 - Injection molding device, injection molding method and housing (2015-10-27),
7. 8630530 - Time shift reproduction time controlling method and information reproduction apparatus (2014-01-14),
8. 8489634 - File access destination control device and method (2013-07-16),
9. 8243926 - Transport stream encryption device and its editing device and method for use therein (2012-08-14),
10. 8160429 - Video image data compression archiver and method for video image data compression (2012-04-17),
Company Overview
NEC Personal Computers, Ltd., based in Tokyo, specializes in the development and manufacturing of personal computing solutions. The company focuses on delivering innovative technology that enhances productivity and user experience across various sectors. With a strong emphasis on research and development, NEC is dedicated to advancing computing technologies, including hardware and software solutions tailored for both individual and enterprise needs. Its commitment to quality and innovation positions it as a key player in the personal computing market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 10 2026

10 Patents

#1,919 in Tokyo

#4,414 in Japan

#56,228 in the World

Tokyo, JP
Tokyo, Japan

Nec Personal Computers, Ltd.

Forward Citations = 14

13 inventors:

goldMedal Hidetaka Umetsu (2 out of 2 patents)

silverMedal Tsuyoshi Taira (2 out of 2 patents)

bronzeMedal Takahisa Shirakawa (2 out of 14 patents)

4.  Satoshi Seino (1 out of 5 patents)

5.  Hiroaki Ueda (1 out of 24 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nec Personal Computers, Ltd.. Retrieved from https://idiyas.com/company/nec-personal-computers

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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