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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#543 in Kanagawa
#15,745 in Japan
Masao Sumita
Forward Citations = 4
3 inventors:
Masao Sumita
% Expired Patents = 100.0
Forward Citations = 4
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3 inventors (with patents filed for the assignee):
Cheng Zhang (1 out of 11 patents)
Tadashi Miura (1 out of 2 patents)
Masao Sumita (1 out of 4 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Masao Sumita. Retrieved from https://idiyas.com/company/masao-sumita
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]