Hideo Watanabe (1 out of 38 patents)
Fumikazu Kiya (1 out of 7 patents)
Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
1 Patents
#6,086 in Tokyo
#15,732 in Japan
Eco 21, Inc.
Forward Citations = 3
2 inventors:
Eco 21, Inc.
Forward Citations = 3
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2 inventors (with patents filed for the assignee):
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Eco 21, Inc.. Retrieved from https://idiyas.com/company/eco-21
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]