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USPTO Data Jan 1 1976 - Oct 20 2026
3 Patents
#11 in Higashiosaka
#8,932 in Japan
Yamamoto Kogaku Ltd.
Forward Citations = 63
9 inventors:
Yamamoto Kogaku Ltd.
% Expired Patents = 33.3
Forward Citations = 63
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9 inventors (with patents filed for the assignee):
Kenta Noda (1 out of 2 patents)
Katsuya Takeshi (1 out of 6 patents)
Rintaro Inui (1 out of 7 patents)
4. Ikuo Shimizu (1 out of 34 patents)
5. Yoshihisa Ishiba (1 out of 6 patents)
6. Kazuko Mabuchi (1 out of 3 patents)
7. Shoshiro Matsushita (1 out of 7 patents)
8. Oritoshi Murata (1 out of 2 patents)
9. Yoshitaka Tani (1 out of 1 patent)
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yamamoto Kogaku Ltd.. Retrieved from https://idiyas.com/company/yamamoto-kogaku
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]