Yokohama, Japan

Toshiharu Nakagawa

This inventor holds 3 USPTO granted patents. Top assignee: Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1981-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiharu Nakagawa. Retrieved from https://idiyas.com/inventor/toshiharu-nakagawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 26(Granted Patents)


Company Filing History:


Years Active: 1981-1984

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3 patents (USPTO):Explore Patents
Profile summary based on public USPTO records.
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]
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