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For the Inventor, By the Inventor

Tokyo, Japan

Mitsui Pharmaceuticals, Inc.


USPTO Granted Patents = 10

Forward Citations = 281

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31 inventors (with patents filed for the assignee):

goldMedal Akira Awaya (4 out of 26 patents)

silverMedal Ikuo Tomino (4 out of 11 patents)

bronzeMedal Tadayuki Sasaki (3 out of 5 patents)

4.  Kazutoshi Horikomi (3 out of 13 patents)

5.  Takumi Kitahara (2 out of 8 patents)

6.  Keiichi Yokoyama (2 out of 20 patents)

7.  Yoshitaka Nagai (2 out of 10 patents)

8.  Takuo Nakano (2 out of 19 patents)

9.  Hisashi Kobayashi (2 out of 5 patents)

10.  Hayao Abe (2 out of 5 patents)

11.  Akira Mizuchi (2 out of 9 patents)

12.  Masanobu Arita (2 out of 7 patents)

13.  Ken Ikeda (1 out of 15 patents)

14.  Noriaki Kihara (1 out of 21 patents)

15.  Ken E Tan (1 out of 1 patent)


10 patents:

1. 5976523 - Method for healing compromised tissues using pyrimidine derivatives (1999-11-02),
2. 5582795 - Hold-transfer system for extraction containers (1996-12-10),
3. 5464816 - Method and pharmaceutical compositions for treating immunodeficiencies (1995-11-07),
4. 5358945 - Pyrimidine compound and pharmaceutically acceptable salts thereof (1994-10-25),
5. 5304555 - Pyrimidines and pharmaceutically acceptable salts thereof useful in (1994-04-19),
6. 5183638 - Automatic immunity analysis apparatus with magnetic particle separation (1993-02-02),
7. 5112810 - Method for treating multiple sclerosis (1992-05-12),
8. 4959368 - Therapeutic agent for neurological diseases (1990-09-25),
9. 3971784 - 5-Fluorouracil derivatives (1976-07-27),
10. 3943119 - Tuberculin active proteins and peptides from the cells of tubercle (1976-03-09),
Company Overview
Mitsui Pharmaceuticals, Inc. is a Tokyo-based company specializing in the development and manufacturing of innovative pharmaceutical products. The organization focuses on therapeutic areas such as oncology, immunology, and central nervous system disorders, leveraging advanced research methodologies and technologies. With a commitment to improving patient outcomes, Mitsui Pharmaceuticals engages in extensive research collaborations and strives to bring cutting-edge treatments to the global market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

10 Patents

#1,914 in Tokyo

#4,401 in Japan

#56,047 in the World

Tokyo, JP
Tokyo, Japan

Mitsui Pharmaceuticals, Inc.

Forward Citations = 281

31 inventors:

goldMedal Akira Awaya (4 out of 26 patents)

silverMedal Ikuo Tomino (4 out of 11 patents)

bronzeMedal Tadayuki Sasaki (3 out of 5 patents)

4.  Kazutoshi Horikomi (3 out of 13 patents)

5.  Takumi Kitahara (2 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mitsui Pharmaceuticals, Inc.. Retrieved from https://idiyas.com/company/mitsui-pharmaceuticals

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]
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