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USPTO Data Jan 1 1976 - Oct 13 2026
2 Patents
#4,366 in Tokyo
#11,133 in Japan
Ricoh Kyosan, Inc.
Forward Citations = 35
3 inventors:
Ricoh Kyosan, Inc.
Forward Citations = 35
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3 inventors (with patents filed for the assignee):
Hiroshi Yamazaki (2 out of 6 patents)
Kouchi Matsumoto (2 out of 2 patents)
Masao Miyazaki (1 out of 3 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ricoh Kyosan, Inc.. Retrieved from https://idiyas.com/company/ricoh-kyosan
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]