Company Badge
USPTO Data Jan 1 1976 - Oct 27 2026
6 Patents
#2,469 in Tokyo
#5,990 in Japan
Tohken Co., Ltd.
Forward Citations = 244
6 inventors:
Tohken Co., Ltd.
Calculating rank
% Expired Patents = 16.7
Forward Citations = 244
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6 inventors (with patents filed for the assignee):
Motofumi Kashi (3 out of 3 patents)
Yasushi Saito (2 out of 6 patents)
Shinji Fujita (2 out of 32 patents)
4. Keiji Yada (2 out of 2 patents)
5. Hiromi Kai (2 out of 2 patents)
6. Isao Kayabara (1 out of 1 patent)
6 patents:
Company Overview
Tohken Co., Ltd. is a leading provider of precision measurement solutions in Japan. Established in 1976, the company specializes in the manufacturing and distribution of high-quality measurement instruments and equipment. With a strong commitment to innovation and customer satisfaction, Tohken Co., Ltd. has built a reputation for excellence in the industry. Their products are widely used in various industries including automotive, aerospace, and electronics.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tohken Co., Ltd.. Retrieved from https://idiyas.com/company/tohken-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]