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For the Inventor, By the Inventor

JP

Seiko Epson Company

Calculating rank
USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

goldMedal Nozomu Hirokubo (1 out of 37 patents)

silverMedal Koji Kitahara (1 out of 20 patents)

bronzeMedal Shigemi Sasaki (1 out of 4 patents)

4.  Yoshimitsu Misawa (1 out of 1 patent)


2 patents:

1. 8947782 - Wavelength variable interference filter, optical module, and light analyzer (2015-02-03),
2. 7052755 - Sheet-like adhesive labels, method of attaching said adhesive labels, dials, method of manufacturing dials and timepieces (2006-05-30),
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USPTO Data Jan 1 1976 - Oct 27 2026

2 Patents

#526 in

#11,147 in Japan

JP
JP

Seiko Epson Company

Forward Citations = 1

4 inventors:

goldMedal Nozomu Hirokubo (1 out of 37 patents)

silverMedal Koji Kitahara (1 out of 20 patents)

bronzeMedal Shigemi Sasaki (1 out of 4 patents)

4.  Yoshimitsu Misawa (1 out of 1 patent)

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