EPO Patents = 9

Forward Citations = 35

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7 inventors (with patents filed for the assignee):

Munetada Matsumiya (2 out of 2 patents)

Kazuyuki Kotani (1 out of 9 patents)

Atsuko Shirai (1 out of 1 patent)

4. Satoshi Katayama (1 out of 17 patents)

5. Takamasa Takagi (1 out of 1 patent)

6. Takehisa Mitsugi (1 out of 1 patent)

7. Kazuya Ise (1 out of 1 patent)

8. Ryuzo Ikeda (0 patent)

9. Hideyuki Kakinuma (0 patent)

10. Matsumiya Munetada (0 patent)

11. Shirai Atsuko (0 patent)

12. Mitugi Takehisa (0 patent)

13. Ise Kazuya (0 patent)

14. Takagi Takamasa (0 patent)

15. Mitsugi Takehisa (0 patent)

3 patents: Sort by Forward Citations

#313 in Kanagawa

#8,929 in Japan

Koyo Corporation

Forward Citations = 35

7 inventors:

Munetada Matsumiya (2 out of 2 patents)

Kazuyuki Kotani (1 out of 9 patents)

Atsuko Shirai (1 out of 1 patent)

4. Satoshi Katayama (1 out of 17 patents)

5. Takamasa Takagi (1 out of 1 patent)

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

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]

9 patents (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]