Crc Inc.

Calculating rank

% Expired Patents = 100.0

EPO Patents = 1

Trademarks = 1

Forward Citations = 2

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14 inventors (with patents filed for the assignee):

Koji Yamaguchi (1 out of 3 patents)

Masao Kawakita (1 out of 2 patents)

Kyoko Hiramatsu (1 out of 2 patents)

4. Keiichi Takahashi (1 out of 1 patent)

5. Naotaka Hamasaki (1 out of 3 patents)

6. Tsunehisa Kaku (1 out of 1 patent)

7. Koichiro Muta (1 out of 1 patent)

8. Munechika Enjoji (1 out of 1 patent)

9. Seiji Naito (1 out of 3 patents)

10. Jun Hayashi (1 out of 1 patent)

11. Shoshu Mitsuyama (1 out of 1 patent)

12. Hiroyuki Yamashita (1 out of 1 patent)

13. Toru Inoue (1 out of 1 patent)

14. Masato Kato (1 out of 1 patent)

15. Munechika c/o Kyushu University Enjoji (0 patent)

1 patent: Sort by Forward Citations

#170 in Fukuoka

#15,759 in Japan

Forward Citations = 2

14 inventors:

Koji Yamaguchi (1 out of 3 patents)

Masao Kawakita (1 out of 2 patents)

Kyoko Hiramatsu (1 out of 2 patents)

4. Keiichi Takahashi (1 out of 1 patent)

5. Naotaka Hamasaki (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Crc Inc.. Retrieved from https://idiyas.com/company/crc

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]