This inventor holds 3 USPTO granted patents. Top assignees: Kajima Corporation, Hitachi Metals, Ltd.. Active years: 1976-1993.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Matsushita. Retrieved from https://idiyas.com/inventor/eiji-matsushita
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
% Patents Active = 100.0
Average Co-Inventor Count = 5.3
ph-index = 3
Forward Citations = 87(Granted Patents)
Location History:
- Fujisawa, JA (1976 - 1977)
- Tokyo, JP (1993)
Company Filing History:
3 out of 152 
Kajima Corporation
1 out of 2,333 
Hitachi Metals, Ltd.
where one patent can have more than one assignee
Years Active: 1976-1993
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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]
IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Matsushita. Retrieved from https://idiyas.com/inventor/eiji-matsushita
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]
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]