EPO Patents = 4

Trademarks = 5

Forward Citations = 118

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21 inventors (with patents filed for the assignee):

Masato Yoshioka (3 out of 5 patents)

Hiroshi Shintani (3 out of 3 patents)

Yoichi Kamimura (3 out of 3 patents)

4. Issei Yoshioka (3 out of 3 patents)

5. Takashi Adachi (2 out of 8 patents)

6. Akihiro Segawa (2 out of 2 patents)

7. Terumi Yoshihara (2 out of 2 patents)

8. Emi Segawa (2 out of 2 patents)

9. Koji Nosaka (1 out of 1 patent)

10. Yuka Ueda (1 out of 1 patent)

11. Masao Kitano (1 out of 6 patents)

12. Yujiro Goto (1 out of 3 patents)

13. Yuta Homma (1 patent)

14. Yoshioka Masato (0 patent)

15. Tomihisa Shota (0 patent)

6 patents: Sort by Forward Citations

1. 6337089 - Microcapsule containing core material and method for producing the same (2002-01-08),

2. 6228968 - Silane copolymer and a method for producing the same (2001-05-08),

3. 5753214 - Base material for cosmetics and uses of the same (1998-05-19),

4. 5116608 - Permanent waving composition (1992-05-26),

5. 4390525 - Keratin hydrolyzate useful as hair fixatives (1983-06-28),

6. 4279996 - Keratin hydrolyzate useful as hair fixatives (1981-07-21),

Seiwa Kasei Company, Limited is a leading chemical company based in Japan. With a strong focus on innovation and sustainability, Seiwa Kasei specializes in the production of high-quality chemicals for various industries including pharmaceuticals, electronics, and automotive. Their dedication to technological advancement and customer satisfaction has made them a trusted partner for companies worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

6 Patents

#562 in Osaka

#5,839 in Japan

Osaka, Japan

Seiwa Kasei Company, Limited