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USPTO Data Jan 1 1976 - Oct 27 2026
2 Patents
#106 in Fukuoka
#11,147 in Japan
K2r Co., Ltd.
Forward Citations = 4
4 inventors:
K2r Co., Ltd.
Calculating rank
% Expired Patents = 50.0
EPO Patents = 3
Forward Citations = 4
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4 inventors (with patents filed for the assignee):
Kenichiro Tanaka (2 out of 34 patents)
Licca Tanaka (2 out of 3 patents)
Tsutomu Harada (1 out of 1 patent)
4. Mizuki Kawakatsu (1 out of 1 patent)
5. Tomonori Kawano (1 patent)
6. Tsutomu Harada (0 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: K2r Co., Ltd.. Retrieved from https://idiyas.com/company/k2r-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]
3 patents (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]