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For the Inventor, By the Inventor

Tokushima, Japan

Otsuka Pharmaceutical Factory, Inc.


USPTO Granted Patents = 188



Trademarks = 5

Forward Citations = 2,940

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358 inventors (with patents filed for the assignee):

goldMedal Fujio Inoue (26 out of 26 patents)

silverMedal Isamu Tateishi (20 out of 20 patents)

bronzeMedal Tatsuro Tsuruoka (16 out of 16 patents)

4.  Kinji Hashimoto (14 out of 15 patents)

5.  Yoshihiko Tsuda (13 out of 13 patents)

6.  Yasuhide Inoue (12 out of 12 patents)

7.  Takashi Okamura (11 out of 16 patents)

8.  Kazuyoshi Miyata (11 out of 11 patents)

9.  Akihito Togawa (10 out of 10 patents)

10.  Yasuo Shoji (10 out of 10 patents)

11.  Tamaki Wada (9 out of 9 patents)

12.  Masako Doi (9 out of 9 patents)

13.  Kazuhiko Tsutsumi (9 out of 9 patents)

14.  Masamitsu Izumi (8 out of 8 patents)

15.  Shigetoshi Kashiyama (8 out of 8 patents)


Core Competencies:
Medical Tube Positioning
Viscoelastic Composition
Sulfated Polysaccharide Production
Keratoconjunctival Disorder Treatment
Mammalian Cell Cryopreservation
Topical Composition
Medicine Administration Device
Adhesion Prevention Material
Pluripotent Stem Cell Preparation
Trehalose Solutions
Infusion Preparation
Artificial Kidney Precursor

188 patents:

1. 12465237 - Medical tube position confirmation system (2025-11-11),
2. 12403224 - Viscoelastic composition (2025-09-02),
3. 12319077 - Printed base material and method for producing the same (2025-06-03),
4. 12264350 - Method for producing sulfated polysaccharide and method for producing PAPS (2025-04-01),
5. 12005070 - Protective agent for keratoconjunctiva or suppressive agent for keratoconjunctival disorder (2024-06-11),
6. 11890372 - Transfusion preparation (2024-02-06),
7. 11889829 - Mammalian cell cryopreservation liquid (2024-02-06),
8. 11872304 - Topical composition (2024-01-16),
9. 11559463 - Method for producing port, and method for producing medical liquid bag (2023-01-24),
10. D975845 - Medicine administration device (2023-01-17),
11. D973199 - Medicine administration device (2022-12-20),
12. 11484564 - Adhesion prevention material (2022-11-01),
13. 11478009 - Food composition (2022-10-25),
14. 11458229 - Viscoelastic composition (2022-10-04),
15. 11305101 - Applicator for medical-use liquids (2022-04-19),
Otsuka Pharmaceutical Factory, Inc. is a subsidiary of Otsuka Holdings Co., Ltd., a global healthcare company headquartered in Japan. As a pharmaceutical manufacturing company, they specialize in the production of ethical drugs, prescription drugs, and over-the-counter drugs. With a commitment to improving the health and well-being of people worldwide, Otsuka Pharmaceutical Factory, Inc. develops innovative and high-quality pharmaceutical products. Their website provides information about their various products, research, and company news.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

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188 Patents

#1 in Tokushima

#719 in Japan

#4,348 in the World

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Tokushima, Japan

Otsuka Pharmaceutical Factory, Inc.

Forward Citations = 2,940

358 inventors:

goldMedal Fujio Inoue (26 out of 26 patents)

silverMedal Isamu Tateishi (20 out of 20 patents)

bronzeMedal Tatsuro Tsuruoka (16 out of 16 patents)

4.  Kinji Hashimoto (14 out of 15 patents)

5.  Yoshihiko Tsuda (13 out of 13 patents)

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