This inventor holds 5 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Toyo Seikan Co., Ltd., Matsushita Electric Industrial Co., Ltd., Toyo Seikan Group Holdings, Ltd.. Active years: 1994-2020.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiaki Shinagawa. Retrieved from https://idiyas.com/inventor/yoshiaki-shinagawa
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
USPTO Granted Patents = 5 (Patent Applications = 1)
% Patents Active = 80.0
EPO Patents = 2 (Patent Applications = 4)
Average Co-Inventor Count = 3.5
ph-index = 3
Forward Citations = 21(Granted Patents)
Company Filing History:
2 out of 108 
Toyo Seikan Co., Ltd.
1 out of 27,375 
Matsushita Electric Industrial Co., Ltd.
1 out of 222 Toyo Seikan Group Holdings, Ltd.
4. 1 out of 586
Toyo Seikan Kaisha, Ltd.
Years Active: 1994-2020
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5 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]
1 patent pending:
IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiaki Shinagawa. Retrieved from https://idiyas.com/inventor/yoshiaki-shinagawa
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]
4 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]