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USPTO Data Jan 1 1976 - Nov 3 2026
2 Patents
#4,379 in Tokyo
#11,154 in Japan
Tofuji E.m.i. Co., Ltd.
Forward Citations = 110
5 inventors:
Tofuji E.m.i. Co., Ltd.
Calculating rank
% Expired Patents = 50.0
EPO Patents = 1
Forward Citations = 110
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5 inventors (with patents filed for the assignee):
Yasuaki Jinnai (1 out of 38 patents)
Shigeru Okada (1 out of 6 patents)
Shigeo Hashimoto (1 out of 6 patents)
4. Noboru Hamaguchi (1 out of 1 patent)
5. Masami Fujita (1 out of 1 patent)
6. Noboru Hamaguchi (0 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tofuji E.m.i. Co., Ltd.. Retrieved from https://idiyas.com/company/tofuji-e-m-i-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]
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]