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USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#4,372 in Tokyo
#11,139 in Japan
Yoshihiro Ishikawa
Forward Citations = 1
2 inventors:
Yoshihiro Ishikawa
CIPO Patents = 2
Forward Citations = 1
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2 inventors (with patents filed for the assignee):
Yoshihiro Ishikawa (2 out of 40 patents)
Haruki Eguchi (2 out of 30 patents)
Yukihiko Okumura (103 patents)
4. Minami Ishii (144 patents)
5. Seizo Onoe (53 patents)
6. Hidehiro Ando (17 patents)
7. Masafumi Hata (15 patents)
8. Etsuhiro Nakano (19 patents)
9. Yoshihiro Ishikawa (0 patent)
10. Seiz0 Onoe (0 patent)
11. Masafumi Usuda (0 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yoshihiro Ishikawa. Retrieved from https://idiyas.com/company/yoshihiro-ishikawa
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]
2 patents (CIPO):
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]