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USPTO Data Jan 1 1976 - Oct 27 2026
2 Patents
#9 in Ueda
#11,147 in Japan
Johnan Manufacturing Co., Ltd.
Forward Citations = 7
5 inventors:
Johnan Manufacturing Co., Ltd.
Calculating rank
% Expired Patents = 100.0
Forward Citations = 7
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5 inventors (with patents filed for the assignee):
Masakane Yoshizawa (1 out of 10 patents)
Hakurei Watanabe (1 out of 5 patents)
Takashi Ogawa (1 out of 9 patents)
4. Tomohiro Moriyama (1 out of 1 patent)
5. Junichi Kubota (1 out of 1 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Johnan Manufacturing Co., Ltd.. Retrieved from https://idiyas.com/company/johnan-manufacturing-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]