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USPTO Data Jan 1 1976 - Nov 3 2026
1 Patents
#11 in Kawagoe
#15,774 in Japan
Katsuji Matsunaga
Forward Citations = 1
4 inventors:
Katsuji Matsunaga
Calculating rank
% Expired Patents = 100.0
Forward Citations = 1
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4 inventors (with patents filed for the assignee):
Kazuyoshi Shiga (1 out of 116 patents)
Mikio Yamada (1 out of 39 patents)
Takeshi Asakura (1 out of 29 patents)
4. Katsuji Matsunaga (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Katsuji Matsunaga. Retrieved from https://idiyas.com/company/katsuji-matsunaga
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]