Tadashi Kubono (1 out of 2 patents)
Seiji Kawamoto (1 out of 1 patent)
Tadao Tokushima (19 patents)
Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
1 Patents
#213 in Shizuoka
#15,732 in Japan
Tsk Corporation
Forward Citations = 0
2 inventors:
Tsk Corporation
% Expired Patents = 100.0
EPO Patents = 1
Forward Citations = 0
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2 inventors (with patents filed for the assignee):
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tsk Corporation. Retrieved from https://idiyas.com/company/tsk
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]
1 patent (EPO):
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]