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Seitetsu Kagaku Co., Ltd.

USPTO Granted Patents = 50

Trademarks = 1

Forward Citations = 1,274

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97 inventors (with patents filed for the assignee):

Masao Kawamura (17 out of 17 patents)

Shigeji Obayashi (11 out of 11 patents)

Kunioki Kato (11 out of 11 patents)

4. Morio Nakamura (10 out of 16 patents)

5. Takushi Yamamoto (8 out of 11 patents)

6. Hitoshi Tanaka (6 out of 7 patents)

7. Saburo Hayashi (6 out of 6 patents)

8. Yuji Sakamoto (5 out of 5 patents)

9. Kazuo Haruna (5 out of 11 patents)

10. Masaru Uno (5 out of 6 patents)

11. Tadaaki Nishi (5 out of 5 patents)

12. Kanji Ueda (4 out of 7 patents)

13. Akira Onoe (4 out of 4 patents)

14. Makoto Sato (4 out of 4 patents)

15. Hiroshi Goda (4 out of 24 patents)

Core Competencies:

High Purity Bis(4-Hydroxyphenyl)Sulfides

Water-Absorbent Resin Composition

Thiophene Derivatives

Carbon Dioxide Separation

Oxygen-Enriched Gas Production

Anesthetizing Aquatic Animals

Tanning Compositions

Alkali Metal Benzenesulfinates

Thermoplastic Polyester Composition

Water-Swellable Elastomer Composition

Catalysts for Nitrogen Oxides Removal

Mercury Removal from Waste Water

50 patents: Sort by Forward Citations

1. 5175372 - Process of producing high purity bis(4-hydroxyphenyl)sulfides and (1992-12-29),

2. 5102858 - Heat-sensitive recording materials containing high purity (1992-04-07),

3. 5101049 - Novel thiophene derivatives and methods for producing the same (1992-03-31),

4. 5075373 - Water retention material with water-absorbency (1991-12-24),

5. 4990450 - Method of producing endo-.alpha.-N-acetylgalactosaminidase from (1991-02-05),

6. 4986835 - Process for separating and recovering carbonic acid gas from gas mixture (1991-01-22),

7. 4985052 - Process for producing high purity oxygen gas from air (1991-01-15),

8. 4981699 - Method of preparing an edible composition and product resulting therefrom (1991-01-01),

9. 4972019 - Water-absorbent resin composition (1990-11-20),

10. 4968787 - Method for treating glycoside (1990-11-06),

11. 4943655 - Salt of 5-acetyl-2-alkylbenzenesulfonic acid (1990-07-24),

12. 4880888 - Process for producing a water-absorbent resin (1989-11-14),

13. 4865882 - Method for powder coating of metallic articles (1989-09-12),

14. 4863989 - Water-absorbent resin composition (1989-09-05),

15. 4853158 - Process for preparing N,N-dialkylaniline salt of 5-acetyl-2-alkylbenzene (1989-08-01),

Seitetsu Kagaku Co., Ltd. is a leading chemical manufacturer based in Japan. With over 50 years of experience, the company specializes in the production and distribution of various chemical products for industrial use. Seitetsu Kagaku Co., Ltd. is committed to delivering high-quality chemicals that meet the diverse needs of their customers while maintaining environmentally friendly practices. Their dedication to research and development ensures innovative solutions and continuous improvement in their product range. Visit their website to learn more about their products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

50 Patents

#62 in

#1,673 in Japan

#13,593 in the World

Seitetsu Kagaku Co., Ltd.

Forward Citations = 1,274

97 inventors:

Masao Kawamura (17 out of 17 patents)

Shigeji Obayashi (11 out of 11 patents)

Kunioki Kato (11 out of 11 patents)

4. Morio Nakamura (10 out of 16 patents)

5. Takushi Yamamoto (8 out of 11 patents)

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