This inventor holds 11 USPTO granted patents. Top assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Kureha Kagaku Kogyo K.k., Toyo Boseki Kabushiki Kaisha. Active years: 1976-1990.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruhiko Yusa. Retrieved from https://idiyas.com/inventor/haruhiko-yusa
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 = 5
Forward Citations = 63(Granted Patents)
Location History:
- Iwaki, JA (1976)
- Tokyo, JP (1989)
- Iwaki, JP (1980 - 1990)
Company Filing History:
10 out of 776 
Kureha Kagaku Kogyo Kabushiki Kaisha
1 out of 137 
Kureha Kagaku Kogyo K.k.
1 out of 789 Toyo Boseki Kabushiki Kaisha
where one patent can have more than one assignee
Years Active: 1976-1990
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11 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: Haruhiko Yusa. Retrieved from https://idiyas.com/inventor/haruhiko-yusa
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]