This inventor holds 9 USPTO granted patents. Top assignees: Nippon Zeon Company, Ltd., Taisho Pharmaceutical Co., Ltd., Zeon Corporation. Active years: 1987-2003.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Fujisawa. Retrieved from https://idiyas.com/inventor/hiroshi-fujisawa
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
% Patents Active = 88.9
Average Co-Inventor Count = 2.8
ph-index = 3
Forward Citations = 41(Granted Patents)
Location History:
- Yokohama, JP (1987)
- Kawasaki, JP (1993 - 2003)
Company Filing History:

Nippon Zeon Company, Ltd.

Taisho Pharmaceutical Co., Ltd.

Zeon Corporation
where one patent can have more than one assignee
Years Active: 1987-2003
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9 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: Hiroshi Fujisawa. Retrieved from https://idiyas.com/inventor/hiroshi-fujisawa
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]