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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#6,094 in Tokyo
#15,745 in Japan
Sumitomo Bakelight Co., Ltd.
Forward Citations = 4
5 inventors:
Sumitomo Bakelight Co., Ltd.
% Expired Patents = 100.0
Forward Citations = 4
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5 inventors (with patents filed for the assignee):
Hiroyuki Tanaka (1 out of 73 patents)
Kenya Tachibana (1 out of 4 patents)
Hiroshi Hirose (1 out of 8 patents)
4. Masahiro Wada (1 out of 48 patents)
5. Teppei Itoh (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Bakelight Co., Ltd.. Retrieved from https://idiyas.com/company/sumitomo-bakelight-company
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]