This inventor holds 4 USPTO granted patents. Top assignees: Nippon Steel Corporation, Kawasaki Jukogyo Kabushiki Kaisha. Active years: 1976-1988.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizi Arima. Retrieved from https://idiyas.com/inventor/keizi-arima
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 = 3.4
ph-index = 3
Forward Citations = 20(Granted Patents)
Location History:
- Sakai, JA (1976)
- Sakai, JP (1986 - 1988)
Company Filing History:
4 out of 3,721 Nippon Steel Corporation
1 out of 3,459 
Kawasaki Jukogyo Kabushiki Kaisha
where one patent can have more than one assignee
Years Active: 1976-1988
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4 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: Keizi Arima. Retrieved from https://idiyas.com/inventor/keizi-arima
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]