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USPTO Data Jan 1 1976 - Oct 27 2026
2 Patents
#4,375 in Tokyo
#11,147 in Japan
Signpost Corporation
Forward Citations = 3
4 inventors:
Signpost Corporation
Calculating rank
Trademarks = 1
Forward Citations = 3
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4 inventors (with patents filed for the assignee):
Hideki Kawabata (2 out of 14 patents)
Yasushi Kambara (2 out of 2 patents)
Toshiya Namikawa (2 out of 2 patents)
4. Tomohiro Sasaki (2 out of 3 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Signpost Corporation. Retrieved from https://idiyas.com/company/signpost
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]