This inventor holds 2 USPTO granted patents. Top assignees: Mitsui Minings & Melting Co., Ltd., Nissan Motor Company Limited, Ohi Seisakusho Co., Ltd.. Active years: 2007-2010.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Hamaguchi. Retrieved from https://idiyas.com/inventor/osamu-hamaguchi-wke1yg7d
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Calculating rank
% Patents Active = 50.0
Average Co-Inventor Count = 4.4
ph-index = 1
Forward Citations = 29(Granted Patents)
Company Filing History:
2 out of 817 Mitsui Minings & Melting Co., Ltd.
1 out of 13,420 
Nissan Motor Company Limited
1 out of 242 Ohi Seisakusho Co., Ltd.
where one patent can have more than one assignee
Years Active: 2007-2010
Loading Chart...
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: Osamu Hamaguchi. Retrieved from https://idiyas.com/inventor/osamu-hamaguchi-wke1yg7d
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]