This inventor holds 5 USPTO granted patents and 2 EPO patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Howa Plastics Co., Ltd.. Active years: 2009-2017.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiko Tanaka. Retrieved from https://idiyas.com/inventor/keiko-tanaka-9vfx2xm4
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Calculating rank
% Patents Active = 20.0
EPO Patents = 2 (Patent Applications = 1)
Average Co-Inventor Count = 2.6
ph-index = 2
Forward Citations = 85(Granted Patents)
Company Filing History:
5 out of 38,970 
Toyota Jidosha Kabushiki Kaisha
1 out of 15 Howa Plastics Co., Ltd.
where one patent can have more than one assignee
Years Active: 2009-2017
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5 patents (USPTO):Explore Patents
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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: Keiko Tanaka. Retrieved from https://idiyas.com/inventor/keiko-tanaka-9vfx2xm4
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]
1 patent 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]