EPO Patents = 1

Forward Citations = 8

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4 inventors (with patents filed for the assignee):

Yoshinori Kanagawa (1 out of 14 patents)

Toshifumi Tamaki (1 out of 6 patents)

Toshio Niwa (1 out of 6 patents)

4. Shigeru Tadokoro (1 out of 1 patent)

5. Shigeru Tadokoro (0 patent)

1 patent: Sort by Forward Citations

#2 in Sennan

#15,759 in Japan

Kahei Co., Ltd.

Forward Citations = 8

4 inventors:

Yoshinori Kanagawa (1 out of 14 patents)

Toshifumi Tamaki (1 out of 6 patents)

Toshio Niwa (1 out of 6 patents)

4. Shigeru Tadokoro (1 out of 1 patent)

5. Shigeru Tadokoro (0 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kahei Co., Ltd.. Retrieved from https://idiyas.com/company/kahei-company

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]

1 patent (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]