This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd., Somar Corporation. Active years: 1992-1994.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Satoru Umeki. Retrieved from https://idiyas.com/inventor/satoru-umeki
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 = 1.8
ph-index = 2
Forward Citations = 50(Granted Patents)
Company Filing History:
2 out of 42,743 
Hitachi, Ltd.
1 out of 152 Hitachi Automotive Engineering Co., Ltd.
1 out of 216 
Somar Corporation
where one patent can have more than one assignee
Years Active: 1992-1994
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2 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: Satoru Umeki. Retrieved from https://idiyas.com/inventor/satoru-umeki
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]