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USPTO Data Jan 1 1976 - Oct 6 2026
2 Patents
#4,361 in Tokyo
#11,124 in Japan
Kelhin Corporation
Forward Citations = 2
6 inventors:
Kelhin Corporation
% Expired Patents = 50.0
Forward Citations = 2
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6 inventors (with patents filed for the assignee):
Yoshihiro Ogawa (1 out of 164 patents)
Toshiaki Iwa (1 out of 33 patents)
Naoki Murata (1 out of 9 patents)
4. Michihiro Takahashi (1 out of 1 patent)
5. Hironori Hashimoto (1 out of 1 patent)
6. Kenji Suda (1 out of 6 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kelhin Corporation. Retrieved from https://idiyas.com/company/kelhin
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]