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For the Inventor, By the Inventor

Tosu, Japan

Hisamitsu Pharmaceutical Company, Inc.

Calculating rank
USPTO Granted Patents = 379

% Expired Patents = 9.5



Trademarks = 60

Forward Citations = 5,331

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411 inventors (with patents filed for the assignee):

goldMedal Naruhito Higo (41 out of 42 patents)

silverMedal Shigeo Kusumi (38 out of 38 patents)

bronzeMedal Seiji Tokumoto (33 out of 34 patents)

4.  Nobuo Tsutsumi (30 out of 30 patents)

5.  Yasunori Takada (24 out of 24 patents)

6.  Kanji Noda (22 out of 22 patents)

7.  Akira Nakagawa (22 out of 22 patents)

8.  Sayaka Mochizuki (19 out of 19 patents)

9.  Masakazu Shigiishi (19 out of 19 patents)

10.  Takashi Yasukochi (16 out of 16 patents)

11.  Hiroyuki Ide (16 out of 16 patents)

12.  Tetsuro Tateishi (15 out of 16 patents)

13.  Takeshi Goto (13 out of 14 patents)

14.  Makoto Ogura (12 out of 13 patents)

15.  Yasuhiro Ikeura (12 out of 13 patents)


Core Competencies:
Cooling Sheet
Ropinirole Patch
Microneedle Device
Adhesive Layer Composition
Asenapine Patch
Drug Delivery
Transdermal Delivery
Medical Patch
Gel Patch
Packing Container
Pharmaceutical Patch
Applicator

379 patents:

1. D1150431 - Cosmetic pack sheet (2026-09-29),
2. D1148122 - Cosmetic pack sheet (2026-09-15),
3. 12728247 - Microneedle device and method for producing same (2026-09-08),
4. 12527686 - Cooling sheet (2026-01-20),
5. 12440452 - Ropinirole-containing patch and method for improving skin permeability of ropinirole (2025-10-14),
6. 12343329 - Method for suppressing production of asenapine-N-oxide (2025-07-01),
7. D1076675 - Packing container (2025-05-27),
8. 12297380 - Method for producing adhesive layer composition for producing cooling sheet, method for producing cooling sheet, and cooling sheet (2025-05-13),
9. 12290653 - Microneedle sheet production method and microneedle sheet (2025-05-06),
10. D1066041 - Packing container (2025-03-11),
11. 12233156 - Microneedle device and method for producing the same (2025-02-25),
12. D1062470 - Packing container (2025-02-18),
13. 12186287 - Lidocaine-containing patch (2025-01-07),
14. 12178922 - Patch with DMSO in adhesive layer (2024-12-31),
15. 12172819 - Packaging bag and packaging body (2024-12-24),
Company Overview
Hisamitsu Pharmaceutical Company, Inc., headquartered in Tosu, Japan, specializes in the development and manufacturing of transdermal patches. The company focuses on innovative drug delivery systems, including cooling sheets, microneedle devices, and various adhesive layer compositions. Hisamitsu's core technology topics encompass a range of therapeutic applications, such as the Ropinirole and Asenapine patches, aimed at enhancing patient compliance and improving treatment outcomes through effective transdermal delivery methods.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

379 Patents

#1 in Tosu

#451 in Japan

#2,433 in the World

Tosu, JP
Tosu, Japan

Hisamitsu Pharmaceutical Company, Inc.

Forward Citations = 5,331

411 inventors:

goldMedal Naruhito Higo (41 out of 42 patents)

silverMedal Shigeo Kusumi (38 out of 38 patents)

bronzeMedal Seiji Tokumoto (33 out of 34 patents)

4.  Nobuo Tsutsumi (30 out of 30 patents)

5.  Yasunori Takada (24 out of 24 patents)

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