% Expired Patents = 42.9

EPO Patents = 1

Trademarks = 3

Forward Citations = 14

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15 inventors (with patents filed for the assignee):

Yohei Matsumura (2 out of 2 patents)

Nobuo Hisada (2 out of 6 patents)

Yoshihide Izumi (2 out of 2 patents)

4. Hironori Nagamatsu (2 out of 2 patents)

5. Tsuyoshi Ando (2 out of 2 patents)

6. Tsutomu Miyata (1 out of 2 patents)

7. Takashi Nakano (1 out of 10 patents)

8. Tsuyoshi Harakawa (1 out of 6 patents)

9. Hideaki Ogawa (1 out of 4 patents)

10. Shigeyuki Sasaki (1 out of 8 patents)

11. Hirofumi Oi (1 out of 2 patents)

12. Akinori Higuchi (1 out of 1 patent)

13. Kazuhiro Takeshita (1 out of 1 patent)

14. Takeshi Okubo (1 out of 1 patent)

15. Yoshihiro Hayashi (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 10252189 - Defoaming agent (2019-04-09),

2. 10125378 - Additive for bioethanol fermentation process and method for producing bioethanol (2018-11-13),

3. 10087468 - Additive for bioethanol fermentation process and method for producing bioethanol (2018-10-02),

4. 9345991 - Defoaming agent (2016-05-24),

5. 9018265 - Defoaming agent (2015-04-28),

6. 7034066 - Water-borne base coating composition for automobiles (2006-04-25),

7. 4776970 - Lubricant for use in paper coating and method for producing the same (1988-10-11),

Company Overview

San Nopco Limited is a leading provider of innovative chemical solutions for various industries. With a strong focus on research and development, we strive to deliver high-quality products that meet the unique needs of our customers. Our expertise includes specialty chemicals, performance additives, and advanced materials. Visit our website to learn more about our solutions and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#141 in Kyoto 615-0031

#5,456 in Japan

Kyoto, Japan

San Nopco Limited

Forward Citations = 14

15 inventors:

Yohei Matsumura (2 out of 2 patents)

Nobuo Hisada (2 out of 6 patents)

Yoshihide Izumi (2 out of 2 patents)

4. Hironori Nagamatsu (2 out of 2 patents)

5. Tsuyoshi Ando (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: San Nopco Limited. Retrieved from https://idiyas.com/company/san-nopco

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]