This inventor holds 35 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Electrical Connectors. Top assignees: Hitachi Metals, Ltd., Hitachi Cable, Inc., Proterial, Ltd.. Active years: 2011-2026.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Jun Umetsu. Retrieved from https://idiyas.com/inventor/jun-umetsu
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
USPTO Granted Patents = 35 (Patent Applications = 1)
% Patents Active = 31.4
EPO Patents = 2 (Patent Applications = 2)
Average Co-Inventor Count = 4.6
ph-index = 7
Forward Citations = 140(Granted Patents)
Location History:
- Hitachi, JP (2011 - 2019)
- Tokyo, JP (2020 - 2023)
Company Filing History:
17 out of 2,333 
Hitachi Metals, Ltd.
15 out of 836 
Hitachi Cable, Inc.
3 out of 263 
Proterial, Ltd.
Years Active: 2011-2026
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Areas of Expertise:
Electrical Connectors
Rotating Machines
Current Sensors
Wiring Members
Manufacturing Methods
Wire Harness
Power-Supply Units
Connector Systems
Lever Connectors
Connection Structures
Signal Lines
Fixing Structures
35 patents (USPTO):Explore Patents
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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]
1 patent pending:
IDiyas Innovation Intelligence. (2026). Inventor Profile: Jun Umetsu. Retrieved from https://idiyas.com/inventor/jun-umetsu
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]
2 patents (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]
2 patents pending (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]