Trademarks = 1

Forward Citations = 20

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3 inventors (with patents filed for the assignee):

Katsuhiko Makino (1 out of 2 patents)

Masato Suzuki (1 out of 104 patents)

Takao Kano (1 out of 1 patent)

2 patents: Sort by Forward Citations

#4,366 in Tokyo

#11,133 in Japan

Sumtak Corporation

Forward Citations = 20

3 inventors:

Katsuhiko Makino (1 out of 2 patents)

Masato Suzuki (1 out of 104 patents)

Takao Kano (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumtak Corporation. Retrieved from https://idiyas.com/company/sumtak

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]