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For the Inventor, By the Inventor

Nagano-ken, Japan

Kotobuki Pharmaceutical Co Ltd


USPTO Granted Patents = 27



Forward Citations = 312

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79 inventors (with patents filed for the assignee):

goldMedal Hiroshi Tomiyama (18 out of 19 patents)

silverMedal Atsushi Noda (8 out of 31 patents)

bronzeMedal Yoshinori Iwai (6 out of 6 patents)

4.  Tsuyoshi Tomiyama (6 out of 30 patents)

5.  Yoshinori Kobayashi (5 out of 46 patents)

6.  Masakazu Imamura (5 out of 9 patents)

7.  Akira Tomiyama (5 out of 22 patents)

8.  Kenichi Kawaguchi (4 out of 12 patents)

9.  Akihiro Ishihata (4 out of 5 patents)

10.  Yusuke Inagaki (4 out of 12 patents)

11.  Akira Kanai (4 out of 19 patents)

12.  Masashi Hiramoto (4 out of 5 patents)

13.  Kentaro Enjo (4 out of 7 patents)

14.  Hajime Takamatsu (4 out of 11 patents)

15.  Ryota Shiraki (4 out of 12 patents)


27 patents:

1. 12227517 - Pyridazinyl-thiazolecarboxamide compound (2025-02-18),
2. 12077519 - Heteroaryl carboxamide compound (2024-09-03),
3. 10975091 - Pyridine derivative (2021-04-13),
4. 10421762 - Pyridine derivative (2019-09-24),
5. 10023583 - Bicyclic pyridine compound (2018-07-17),
6. 10005762 - Pyridine derivatives (2018-06-26),
7. 9487491 - Diamino heterocyclic carboxamide compound (2016-11-08),
8. 9464077 - Nitrogen-containing aromatic heterocyclic compound (2016-10-11),
9. 8969336 - Diamino heterocyclic carboxamide compound (2015-03-03),
10. 8198464 - Method for producing C-glycoside derivative and intermediate for synthesis thereof (2012-06-12),
11. 8097592 - Cocrystal of C-glycoside derivative and L-proline (2012-01-17),
12. 8044206 - Nitrogen—containing heterocyclic derivatives having 2,6-disubstituted styryl (2011-10-25),
13. 7977466 - C-glycoside derivatives and salts thereof (2011-07-12),
14. 7956182 - Process for preparing optically active alcohols (2011-06-07),
15. 7795229 - Serum cholesterol lowering agent or preventative or therapeutic agent for atherosclerosis (2010-09-14),
Kotobuki Pharmaceutical Co Ltd is a leading Japanese pharmaceutical company. With a focus on innovation, we develop and manufacture a wide range of high-quality pharmaceutical products. Our commitment to providing innovative solutions for improving healthcare outcomes has made us a trusted name in the industry. Visit our website to learn more about our products and services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

27 Patents

#3 in Nagano-ken

#2,405 in Japan

#23,290 in the World

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Nagano-ken, Japan

Kotobuki Pharmaceutical Co Ltd

Forward Citations = 312

79 inventors:

goldMedal Hiroshi Tomiyama (18 out of 19 patents)

silverMedal Atsushi Noda (8 out of 31 patents)

bronzeMedal Yoshinori Iwai (6 out of 6 patents)

4.  Tsuyoshi Tomiyama (6 out of 30 patents)

5.  Yoshinori Kobayashi (5 out of 46 patents)

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