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Forward Citations = 49

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11 inventors (with patents filed for the assignee):

Shigehiko Yoshioka (7 out of 7 patents)

Hideto Yamada (6 out of 6 patents)

Hisatake Sato (4 out of 19 patents)

4. Yoshio Adachi (3 out of 3 patents)

5. Tsuneo Yoshida (2 out of 2 patents)

6. Akira Honma (1 out of 2 patents)

7. Kaoru Okada (1 out of 1 patent)

8. Akira Asakura (1 out of 1 patent)

9. Kazuo Miyahana (1 out of 1 patent)

10. Kimihiko Goto (1 out of 1 patent)

11. Motokazu Kamei (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 4882087 - Aqueous dispersed solution of substituted succinic anhydride and process (1989-11-21),

2. 4849055 - Process for making paper using a substituted succinic anhydride as a (1989-07-18),

3. 4810301 - Composition for sizing agent and process for using the same composition (1989-03-07),

4. 4717452 - Composition for sizing agent and process for using the same composition (1988-01-05),

5. 4533434 - Process for sizing paper and process for making plasterboard base paper (1985-08-06),

6. 4405408 - Cellulose processing agents and paper processed therewith (1983-09-20),

7. 4200562 - Sizing agent for use in making paper (1980-04-29),

Seiko Kagaku Kogyo Co., Ltd. is a leading manufacturer of chemical products based in Japan. With a history dating back to 1949, the company specializes in the production of various industrial chemicals, including resins, adhesives, and coatings. Seiko Kagaku Kogyo is known for its commitment to innovation and quality, providing customers with high-performance solutions for a wide range of applications.

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USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#6 in all of

#5,301 in Japan

all of, Japan

Seiko Kagaku Kogyo Co., Ltd.