Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4579687 | Process for producing salt of alpha-sulfo fatty acid alkyl ester | Shizuo Sekiguchi, Kyozo Kitano | 1986-04-01 |
| 4561999 | Surfactant composition | Shizuo Sekiguchi, Kyozo Kitano | 1985-12-31 |
| 4545939 | Process for producing sulfonate of unsaturated fatty acid ester | Shizuo Sekiguchi, Kyozo Kitano | 1985-10-08 |
| 4390475 | Thin film type sulfonation process of alkylbenzene | Fusao Kondo, Toshimi Terao, Kyozo Kitano | 1983-06-28 |
| 4248793 | Process for the production of internal olefin sulfonate | Shizuo Sekiguchi, Yozo Miyawaki, Kyozo Kitano | 1981-02-03 |
| 4183867 | Method for preparation of internal olefin sulfonate | Shizuo Sekiguchi, Kyozo Kitano | 1980-01-15 |