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USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#4,372 in Tokyo
#11,139 in Japan
Sanki Eng., Co., Ltd.
Forward Citations = 19
4 inventors:
Sanki Eng., Co., Ltd.
Calculating rank
% Expired Patents = 100.0
Forward Citations = 19
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4 inventors (with patents filed for the assignee):
Norihiko Shibata (2 out of 2 patents)
Fumiaki Tsuchiya (2 out of 2 patents)
Toshihiro Nozawa (2 out of 2 patents)
4. Shinya Ishi (2 out of 3 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sanki Eng., Co., Ltd.. Retrieved from https://idiyas.com/company/sanki-eng-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]