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For the Inventor, By the Inventor

Tokyo, Japan

Kusumoto Chemicals, Ltd.

Calculating rank
USPTO Granted Patents = 18

% Expired Patents = 22.2



Trademarks = 2

Forward Citations = 46

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34 inventors (with patents filed for the assignee):

goldMedal Shigehiro Kawahito (7 out of 7 patents)

silverMedal Yasuhiro Oiwa (3 out of 3 patents)

bronzeMedal Makoto Ubukata (3 out of 3 patents)

4.  Takashi Horiguchi (3 out of 3 patents)

5.  Masafumi Kawase (3 out of 3 patents)

6.  Kohei Ogawa (2 out of 2 patents)

7.  Chihiro Hamazaki (2 out of 2 patents)

8.  Junpei Suetou (2 out of 2 patents)

9.  Tomoko Arima (2 out of 2 patents)

10.  Kenji Fukui (2 out of 2 patents)

11.  Kyohei Nakano (2 out of 2 patents)

12.  Katsura Naganuma (1 out of 1 patent)

13.  Tomoko Ooya (1 out of 1 patent)

14.  Kenichi Asano (1 out of 1 patent)

15.  Hideki Satake (1 out of 1 patent)


18 patents:

1. 12686757 - Rheology control agent and curable composition using the same (2026-07-21),
2. 12577410 - Rheology control agents for water-based resins and water-based paint compositions (2026-03-17),
3. 12441884 - Rheology control agent and curable composition using the same (2025-10-14),
4. 11655376 - Surface control agent for water-based coating, water-based coating composition, coating film, and multilayer coating film (2023-05-23),
5. 11613671 - Anti-settling agent composition for aqueous paint (2023-03-28),
6. 10533115 - Layer migration control agent (2020-01-14),
7. 10017652 - Additive for aqueous coating material for imparting distinctness of image to coating film (2018-07-10),
8. 9822277 - Adhesion improver for amine curing epoxy resin paint (2017-11-21),
9. 9464208 - Viscosity modifier for high concentration dispersion of inorganic fine particles and high concentration dispersion of inorganic fine particles which contains the same (2016-10-11),
10. 8809429 - Aqueous pigment anti-settling agent and process for producing same (2014-08-19),
11. 8357736 - Defoaming agent for water-based paint (2013-01-22),
12. 8173751 - Defoamers for top coat paints for motor vehicles (2012-05-08),
13. 8133945 - Defoaming agent for water based paint (2012-03-13),
14. 7208544 - Flow-and-leveling agents for waterborne coatings (2007-04-24),
15. 6642335 - Flow-and-leveling agents for powder coatings (2003-11-04),
Company Overview
Kusumoto Chemicals, Ltd. is a prominent Japanese company specializing in the development and manufacture of chemical products, particularly in the fields of pharmaceuticals and specialty chemicals. The organization is known for its innovative approaches in research and technology, focusing on enhancing the efficacy and safety of its offerings. With a commitment to sustainability and quality, Kusumoto plays a significant role in the chemical industry, catering to diverse markets both domestically and internationally.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

18 Patents

#1,414 in Tokyo

#3,125 in Japan

#34,263 in the World

Tokyo, JP
Tokyo, Japan

Kusumoto Chemicals, Ltd.

Forward Citations = 46

34 inventors:

goldMedal Shigehiro Kawahito (7 out of 7 patents)

silverMedal Yasuhiro Oiwa (3 out of 3 patents)

bronzeMedal Makoto Ubukata (3 out of 3 patents)

4.  Takashi Horiguchi (3 out of 3 patents)

5.  Masafumi Kawase (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kusumoto Chemicals, Ltd.. Retrieved from https://idiyas.com/company/kusumoto-chemicals

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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