This inventor holds 3 USPTO granted patents. Top assignees: Nippon Toki Kabushiki Kaisha, Noritake Co., Ltd., Watanabe Instruments Corp.. Active years: 1981-2002.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Matsunaga. Retrieved from https://idiyas.com/inventor/hirokazu-matsunaga
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 = 4.7
ph-index = 2
Forward Citations = 54(Granted Patents)
Location History:
- Nagoya, JP (2001)
- Tsushima, JP (1981 - 2002)
Company Filing History:
1 out of 7 Nippon Toki Kabushiki Kaisha
1 out of 204 
Noritake Co., Ltd.
1 out of 2 Watanabe Instruments Corp.
4. 1 out of 834,513 patents
Other
where one patent can have more than one assignee
Years Active: 1981-2002
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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: Hirokazu Matsunaga. Retrieved from https://idiyas.com/inventor/hirokazu-matsunaga
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]