This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignees: Nissan Motor Company Limited, Ohi Seisakusho Co., Ltd.. Active years: 1994-2009.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenichi Hirooka. Retrieved from https://idiyas.com/inventor/kenichi-hirooka
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
% Patents Active = 100.0
EPO Patents = 1
Average Co-Inventor Count = 5.1
ph-index = 4
Forward Citations = 62(Granted Patents)
Location History:
- Ebina, JP (1994)
- Kanagawa, JP (1994)
- Yokohama, JP (2006 - 2009)
Company Filing History:
4 out of 13,420 
Nissan Motor Company Limited
2 out of 242 Ohi Seisakusho Co., Ltd.
where one patent can have more than one assignee
Years Active: 1994-2009
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4 patents (USPTO):Explore Patents
I specialize in innovations, inventions, inventors, patent attorneys, assignees, and 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: Kenichi Hirooka. Retrieved from https://idiyas.com/inventor/kenichi-hirooka
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]
1 patent (EPO):
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]