% Expired Patents = 33.3

Forward Citations = 62

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7 inventors (with patents filed for the assignee):

Seiji Tokumoto (1 out of 34 patents)

Makoto Ogura (1 out of 13 patents)

Kiyomi Tsuruda (1 out of 9 patents)

4. Takeshi Goto (1 out of 14 patents)

5. Shigeo Oota (1 out of 1 patent)

6. Jun Aoki (1 out of 2 patents)

7. Norifumi Tanida (1 out of 4 patents)

3 patents: Sort by Forward Citations

1. D683848 - Applicator device (2013-06-04),

2. 6914169 - Patch agent (2005-07-05),

3. 6794367 - Solid preparations for oral administration of drugs relating to genes (2004-09-21),

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USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#10 in Saga

#8,929 in Japan

Saga, Japan

Hisamitsu Pharmaceutical Corporation

Forward Citations = 62

7 inventors:

Seiji Tokumoto (1 out of 34 patents)

Makoto Ogura (1 out of 13 patents)

Kiyomi Tsuruda (1 out of 9 patents)

4. Takeshi Goto (1 out of 14 patents)

5. Shigeo Oota (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hisamitsu Pharmaceutical Corporation. Retrieved from https://idiyas.com/company/hisamitsu-pharmaceutical

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]