Chuo Yuka Co., Ltd.

Calculating rank

% Expired Patents = 50.0

Forward Citations = 11

Loading Chart...

13 inventors (with patents filed for the assignee):

Koichi Takeuchi (1 out of 19 patents)

Daijiro Shiino (1 out of 6 patents)

Hidefumi Tochigi (1 out of 2 patents)

4. Kosuke Tsuda (1 out of 1 patent)

5. Hiroshi Mori (1 out of 9 patents)

6. Masaaki Kume (1 out of 1 patent)

7. Akinori Itoh (1 out of 4 patents)

8. Kozo Iwasaki (1 out of 4 patents)

9. Kazuo Kato (1 out of 79 patents)

10. Motofumi Kurahashi (1 out of 4 patents)

11. Shuichi Takahashi (1 out of 1 patent)

12. Shirow Shimizu (1 out of 1 patent)

13. Tetsuo Ichimaru (1 out of 1 patent)

2 patents: Sort by Forward Citations

#4,375 in Tokyo

#11,147 in Japan

Forward Citations = 11

13 inventors:

Koichi Takeuchi (1 out of 19 patents)

Daijiro Shiino (1 out of 6 patents)

Hidefumi Tochigi (1 out of 2 patents)

4. Kosuke Tsuda (1 out of 1 patent)

5. Hiroshi Mori (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chuo Yuka Co., Ltd.. Retrieved from https://idiyas.com/company/chuo-yuka-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]