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Tsumura Co., Ltd.

USPTO Granted Patents = 60

CIPO Patents = 3

EPO Patents = 13

Trademarks = 2

Forward Citations = 184

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133 inventors (with patents filed for the assignee):

Kunio Hosaka (13 out of 16 patents)

Hiroshi Mitsuhashi (10 out of 19 patents)

Yoshikazu Mori (5 out of 5 patents)

4. Keiichi Noda (5 out of 5 patents)

5. Takuji Yamaguchi (5 out of 5 patents)

6. Shigefumi Takeda (5 out of 9 patents)

7. Masaharu Kigawa (5 out of 5 patents)

8. Masayuki Kimura (4 out of 41 patents)

9. Tomohisa Hattori (4 out of 4 patents)

10. Yasushi Ikarashi (4 out of 4 patents)

11. Yasushi Igarashi (4 out of 4 patents)

12. Zenji Kawakami (3 out of 3 patents)

13. Yoshihiro Hasegawa (3 out of 3 patents)

14. Yousuke Yamazaki (3 out of 3 patents)

15. Takashi Sekine (3 out of 3 patents)

Core Competencies:

Multicomponent Drug

Microorganism Detection

Adrenomedullin Production Enhancer

Bioassay Method

Kampo Extract

Neovascularization Inhibitors

Angiogenesis Inhibitor

Iridoid Derivatives

Ghrelin Production Promoter

Dithiocarbamate Pesticide Analysis

Platinum Complex

Peptide Medicinal Compositions

60 patents: Sort by Forward Citations

1. 11576972 - Method of formulating a multicomponent drug using bases evaluated by Mahalanobis Taguchi method (2023-02-14),

2. 11203775 - Method for predicting effect of Daikenchuto and method for determining dosage of Daikenchuto (2021-12-21),

3. 10605792 - Method of and apparatus for formulating multicomponent drug (2020-03-31),

4. 10533979 - Method of and apparatus for formulating multicomponent drug (2020-01-14),

5. 10527595 - Method of and apparatus for formulating multicomponent drug (2020-01-07),

6. 10059976 - Microorganism detection method (2018-08-28),

7. 9778233 - Method of and apparatus for formulating multicomponent drug (2017-10-03),

8. 9193756 - Adrenomedullin production enhancer (2015-11-24),

9. 9121846 - Daikenchuto bioassay method and quality management method using same (2015-09-01),

10. 8980337 - Tablet composition containing kampo extract (2015-03-17),

11. 8877953 - Method for producing sanshool (2014-11-04),

12. 8871962 - Method for producing sanshool (2014-10-28),

13. 8741358 - Ghrelin production promoter (2014-06-03),

14. 8623914 - Medical composition (2014-01-07),

15. 8609352 - Bioassay method for yokukansan with serotonin receptor (2013-12-17),

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

60 Patents

#628 in Tokyo

#1,504 in Japan

#11,787 in the World

Tsumura Co., Ltd.

Forward Citations = 184

133 inventors:

Kunio Hosaka (13 out of 16 patents)

Hiroshi Mitsuhashi (10 out of 19 patents)

Yoshikazu Mori (5 out of 5 patents)

4. Keiichi Noda (5 out of 5 patents)

5. Takuji Yamaguchi (5 out of 5 patents)

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