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USPTO Data Jan 1 1976 - Oct 13 2026
3 Patents
#123 in Nagano
#8,929 in Japan
Microstone Co., Ltd.
Forward Citations = 179
5 inventors:
Microstone Co., Ltd.
% Expired Patents = 33.3
Forward Citations = 179
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5 inventors (with patents filed for the assignee):
Kazutoyo Ichikawa (3 out of 3 patents)
Norihiko Shiratori (3 out of 5 patents)
Hideki Tamura (2 out of 2 patents)
4. Masaki Terashima (1 out of 1 patent)
5. Yuji Izawa (1 out of 1 patent)
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Microstone Co., Ltd.. Retrieved from https://idiyas.com/company/microstone-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]