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USPTO Data Jan 1 1976 - Oct 13 2026
3 Patents
#3,547 in Tokyo
#8,929 in Japan
Marutaka-Kogyo Inc.
Forward Citations = 9
4 inventors:
Marutaka-Kogyo Inc.
% Expired Patents = 100.0
Forward Citations = 9
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4 inventors (with patents filed for the assignee):
Kazumasa Takagi (3 out of 35 patents)
Eizou Takagi (3 out of 3 patents)
Masayuki Asakura (1 out of 1 patent)
4. Tatsuya Ida (1 out of 1 patent)
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Marutaka-Kogyo Inc.. Retrieved from https://idiyas.com/company/marutaka-kogyo
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]