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USPTO Data Jan 1 1976 - Oct 27 2026
1 Patents
#6,102 in Tokyo
#15,755 in Japan
Sumikin Stainless Steel Corporation
Forward Citations = 2
4 inventors:
Sumikin Stainless Steel Corporation
Calculating rank
Forward Citations = 2
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4 inventors (with patents filed for the assignee):
Masaharu Hatano (1 out of 19 patents)
Eiichiro Ishimaru (1 out of 24 patents)
Akihiko Takahashi (1 out of 20 patents)
4. Ken Kimura (1 out of 21 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumikin Stainless Steel Corporation. Retrieved from https://idiyas.com/company/sumikin-stainless-steel
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]