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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#1,657 in Osaka
#15,745 in Japan
Sumitomo Metal Indus., Ltd.
Forward Citations = 1
7 inventors:
Sumitomo Metal Indus., Ltd.
Forward Citations = 1
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7 inventors (with patents filed for the assignee):
Takao Sugino (1 out of 2 patents)
Masamichi Asai (1 out of 4 patents)
Toshio Kawamura (1 out of 8 patents)
4. Kenichi Mukoyama (1 out of 3 patents)
5. Akira Takahashi (1 out of 2 patents)
6. Hiroshi Yamada (1 out of 2 patents)
7. Hiroshi Hikima (1 out of 3 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Metal Indus., Ltd.. Retrieved from https://idiyas.com/company/sumitomo-metal-indus
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]