% Expired Patents = 20.0

EPO Patents = 3

Forward Citations = 2

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7 inventors (with patents filed for the assignee):

Tatsuya Wada (2 out of 14 patents)

Tomonori Hamawaki (2 out of 3 patents)

Masayuki Homma (1 out of 1 patent)

4. Takahisa Kogure (1 out of 1 patent)

5. Kenji Nakajima (1 out of 1 patent)

6. Takashi Mano (1 out of 1 patent)

7. Masatoshi Tanouchi (1 out of 1 patent)

8. Kenji Nakajima (1 patent)

9. Yosuke C/O Osaka Res Laboratory Kataoka (0 patent)

10. Tomonori C/O Osaka Res Laboratory Hamawaki (0 patent)

11. Takako C/O Osaka Res Laboratory Isoda (0 patent)

12. Tomonori Nihon Pharmaceutical Co Ltd Hamawaki (0 patent)

5 patents: Sort by Forward Citations

1. 11517594 - Methods for producing compositions containing plasmalogen (2022-12-06),

2. 9243071 - Fusion protein for suppression of autoantibodies (2016-01-26),

3. 8663716 - Composition for treatment of aesthenopia (2014-03-04),

4. 8367738 - Smooth muscle contraction inhibitors (2013-02-05),

5. 7989503 - Smooth muscle peristole inhibitor (2011-08-02),

Company Overview

Nihon Pharmaceutical Co., Ltd is a leading Japanese pharmaceutical company specializing in the research, development, and production of innovative drugs and healthcare products. With a strong commitment to quality and customer satisfaction, Nihon Pharma is dedicated to improving the health and well-being of individuals worldwide. Their extensive product portfolio includes a wide range of prescription medications, over-the-counter drugs, and medical devices.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

5 Patents

#2,721 in Tokyo

#6,654 in Japan

Tokyo, Japan

Nihon Pharmaceutical Co., Ltd

Forward Citations = 2

7 inventors:

Tatsuya Wada (2 out of 14 patents)

Tomonori Hamawaki (2 out of 3 patents)

Masayuki Homma (1 out of 1 patent)

4. Takahisa Kogure (1 out of 1 patent)

5. Kenji Nakajima (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nihon Pharmaceutical Co., Ltd. Retrieved from https://idiyas.com/company/nihon-pharmaceutical-company

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]

3 patents (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]