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USPTO Data Jan 1 1976 - Oct 27 2026
1 Patents
#1,658 in Osaka
#15,762 in Japan
Kojun Japan Co., Ltd.
Forward Citations = 0
6 inventors:
Kojun Japan Co., Ltd.
Calculating rank
% Expired Patents = 100.0
Forward Citations = 0
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6 inventors (with patents filed for the assignee):
Seiyu Harada (1 out of 4 patents)
Jiyeong An (1 out of 2 patents)
Bumbu Masutani (1 out of 1 patent)
4. Atsushi Yamatsu (1 out of 5 patents)
5. Yusuke Yamashita (1 out of 2 patents)
6. Yoshio Tsujino (1 out of 10 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kojun Japan Co., Ltd.. Retrieved from https://idiyas.com/company/kojun-japan-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]