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USPTO Data Jan 1 1976 - Oct 27 2026
1 Patents
#6,105 in Tokyo
#15,762 in Japan
Ryotaro Kamikawai
Forward Citations = 1
4 inventors:
Ryotaro Kamikawai
Calculating rank
Forward Citations = 1
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4 inventors (with patents filed for the assignee):
Eiichi Goto (1 out of 17 patents)
Ryotaro Kamikawai (1 out of 5 patents)
Mutsumi Hosoya (1 out of 1 patent)
4. Willy Hioe (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ryotaro Kamikawai. Retrieved from https://idiyas.com/company/ryotaro-kamikawai
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]