This inventor holds 3 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignees: Nitto-Denko Corporation, Daikyo Seiko, Ltd.. Active years: 2020-2026.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiko Fujiwara. Retrieved from https://idiyas.com/inventor/keiko-fujiwara
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
USPTO Granted Patents = 3 (Patent Applications = 2)
% Patents Active = 66.7
EPO Patents = 2 (Patent Applications = 3)
Average Co-Inventor Count = 4.0
ph-index = 1
Company Filing History:
3 out of 3,949 
Nitto-Denko Corporation
1 out of 126 
Daikyo Seiko, Ltd.
where one patent can have more than one assignee
Years Active: 2020-2026
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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]
2 patents pending:
IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiko Fujiwara. Retrieved from https://idiyas.com/inventor/keiko-fujiwara
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]
3 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]