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USPTO Data Jan 1 1976 - Oct 27 2026
2 Patents
#526 in
#11,147 in Japan
Ec-Showa Denko K.k.
Forward Citations = 1
5 inventors:
Ec-Showa Denko K.k.
Calculating rank
Forward Citations = 1
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5 inventors (with patents filed for the assignee):
Toshihiro Arai (2 out of 4 patents)
Tadashi Takeda (2 out of 2 patents)
Osamu Hamazoe (2 out of 2 patents)
4. Katsuo Kobori (1 out of 1 patent)
5. Hiroshi Kirikoshi (1 out of 1 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ec-Showa Denko K.k.. Retrieved from https://idiyas.com/company/ec-showa-denko-k-k
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]