This inventor holds 3 USPTO granted patents. Top assignees: Nhk Spring Co., Ltd., Sumitomo Chemical Company, Limited. Active years: 1979-2017.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuaki Koyama. Retrieved from https://idiyas.com/inventor/nobuaki-koyama
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 = 4.0
ph-index = 2
Forward Citations = 11(Granted Patents)
Location History:
- Kanagawa, JP (2013)
- Yokohama, JP (1979 - 2017)
Company Filing History:
3 out of 1,234 Nhk Spring Co., Ltd.
1 out of 6,961 Sumitomo Chemical Company, Limited
where one patent can have more than one assignee
Years Active: 1979-2017
Loading Chart...
3 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: Nobuaki Koyama. Retrieved from https://idiyas.com/inventor/nobuaki-koyama
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]