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USPTO Data Jan 1 1976 - Oct 13 2026
2 Patents
#4,366 in Tokyo
#11,133 in Japan
Kozo Keikaku Engineering Inc.
Forward Citations = 5
6 inventors:
Kozo Keikaku Engineering Inc.
% Expired Patents = 100.0
Forward Citations = 5
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6 inventors (with patents filed for the assignee):
Mitsuo Okumura (2 out of 59 patents)
Hong Zhang (2 out of 5 patents)
Masashi Kameyama (2 out of 2 patents)
4. Masayuki Hirose (2 out of 5 patents)
5. Nobuki Dohi (2 out of 2 patents)
6. Yukihisa Hasegawa (1 out of 1 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kozo Keikaku Engineering Inc.. Retrieved from https://idiyas.com/company/kozo-keikaku-engineering
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]