Koyo Seiko K.k.

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Forward Citations = 2

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11 inventors (with patents filed for the assignee):

Akihiro Mizutani (1 out of 22 patents)

Toshihiro Kawaguchi (1 out of 9 patents)

Masao Goto (1 out of 16 patents)

4. Teruo Hoshino (1 out of 4 patents)

5. Masayuki Kitamura (1 out of 7 patents)

6. Yoshitaka Natsume (1 out of 4 patents)

7. Hazime Tazumi (1 out of 1 patent)

8. Takao Ooki (1 out of 3 patents)

9. Yoshihiro Wakikado (1 out of 2 patents)

10. Akira Muroga (1 out of 1 patent)

11. Yatsuka Takata (1 out of 3 patents)

1 patent: Sort by Forward Citations

#831 in

#15,762 in Japan

Forward Citations = 2

11 inventors:

Akihiro Mizutani (1 out of 22 patents)

Toshihiro Kawaguchi (1 out of 9 patents)

Masao Goto (1 out of 16 patents)

4. Teruo Hoshino (1 out of 4 patents)

5. Masayuki Kitamura (1 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Koyo Seiko K.k.. Retrieved from https://idiyas.com/company/koyo-seiko-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]