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Nikken Chemicals Co., Ltd.

USPTO Granted Patents = 51

Forward Citations = 456

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91 inventors (with patents filed for the assignee):

Shinji Ina (6 out of 6 patents)

Mutsuo Okumura (6 out of 6 patents)

Tsutomu Kondou (6 out of 9 patents)

4. Tadashi Ukigaya (5 out of 5 patents)

5. Kenichi Suzuki (4 out of 22 patents)

6. Akira Kiue (4 out of 4 patents)

7. Kenjirou Yamana (4 out of 4 patents)

8. Kyoji Noda (4 out of 4 patents)

9. Saburo Chida (4 out of 4 patents)

10. Shigeyuki Tasaka (4 out of 4 patents)

11. Akane Takahama (3 out of 3 patents)

12. Tetsuro Sano (3 out of 3 patents)

13. Taketsugu Seki (3 out of 3 patents)

14. Michika Takano (3 out of 3 patents)

15. Toshiya Komatsu (3 out of 3 patents)

Core Competencies:

Allergic Eye Disease

Soft Capsule Preparation

Polyprenyl Compounds

Triazolo-1,4-Diazepine Compounds

Sustained-Release Tablets

Erythritol Production

Buprenorphine Absorption

Imidazothiazole Compounds

Microorganism Processes

Sweetener Composition

Fermented Milk

Meniere's Disease Treatment

51 patents: Sort by Forward Citations

1. 7772258 - Agent for treatment of allergic eye disease (2010-08-10),

2. 7314643 - Soft capsule preparation (2008-01-01),

3. 6984742 - Method for preparing polyprenyl compounds (2006-01-10),

4. 6943195 - Cycloalkenone derivative (2005-09-13),

5. 6703527 - Method for oxidation of allyl alcohol (2004-03-09),

6. 6489469 - Method for storing or transporting erythritol solution (2002-12-03),

7. 6433173 - Process for the preparation of ipidacrine or ipidacrine hydrochloride hydrate (2002-08-13),

8. 6433167 - Triazolo-1,4-diazepine compounds and medicinal composition containing the same (2002-08-13),

9. 6426091 - Sustained-release theophylline tablet (2002-07-30),

10. 6369251 - Method for purification of polyprenyl compounds (2002-04-09),

11. 6306853 - 1,4-Dihydropyridine derivatives (2001-10-23),

12. 6291482 - N-hydroxyurea derivative and pharmaceutical composition containing the same (2001-09-18),

13. 6280717 - Cation exchange resin preparation (2001-08-28),

14. 6265402 - Use of 2-phenylmorpholin-5-one derivatives (2001-07-24),

15. 6251897 - 6-phenyltetrahydro-1,3-oxazin-2-one derivative and pharmaceutical composition containing the same (2001-06-26),

Nikken Chemicals Co., Ltd. is a leading global provider of chemical solutions for various industries. With over 50 years of experience, we have established ourselves as a trusted partner in the development and production of high-quality chemicals. Our diverse range of products includes specialty chemicals, industrial chemicals, and custom synthesis solutions. We are committed to delivering innovative and sustainable solutions that meet the evolving needs of our customers. Visit our website to learn more about our company and explore our wide range of chemical solutions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

51 Patents

#2 in Chuo-ku

#1,649 in Japan

#13,381 in the World

Nikken Chemicals Co., Ltd.

Forward Citations = 456

91 inventors:

Shinji Ina (6 out of 6 patents)

Mutsuo Okumura (6 out of 6 patents)

Tsutomu Kondou (6 out of 9 patents)

4. Tadashi Ukigaya (5 out of 5 patents)

5. Kenichi Suzuki (4 out of 22 patents)

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