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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#6,094 in Tokyo
#15,745 in Japan
Optec Dai-Ichi Denko., Ltd.
Forward Citations = 5
5 inventors:
Optec Dai-Ichi Denko., Ltd.
Forward Citations = 5
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5 inventors (with patents filed for the assignee):
Kazuo Yamaguchi (1 out of 15 patents)
Seiichi Sato (1 out of 52 patents)
Atsushi Ueda (1 out of 31 patents)
4. Masami Matsumura (1 out of 14 patents)
5. Yoshi Kurosawa (1 out of 5 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Optec Dai-Ichi Denko., Ltd.. Retrieved from https://idiyas.com/company/optec-dai-ichi-denko
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]
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]
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]