Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5177256 | Betaine compound and detergent composition | Kohshiro Sotoya, Takashi Matsuo, Kazuyuki Yahagi | 1993-01-05 |
| 5099065 | Betaine compound and detergent composition | Kohshiro Sotoya, Takashi Matsuo, Kazuyuki Yahagi | 1992-03-24 |
| 5089029 | Fuel oil additive and fuel oil additive composition | Jiro Hashimoto, Shogo Nomoto, Masanori Nozawa | 1992-02-18 |
| 4885112 | Surface active secondary amidoamino acid or salt compounds | Kohshiro Sotoya, Kazuhiko Okabe, Masanobu Tanigaki, Masaji Yamanishi, Hajime Hirota | 1989-12-05 |
| 4846947 | Process for preparing an alkanolammonium salt or ammonium salt of surface active agents | Kohshiro Sotoya, Kazuhiko Okabe, Masanobu Tanigaki, Masaji Yamanishi | 1989-07-11 |
| 4709045 | Process for producing 1,2-substituted imidazoline compounds | Koshiro Sotoya, Kazuhiko Okabe | 1987-11-24 |
| 4705893 | Process for the preparation of amphoteric surfactants | Koshiro Sotoya, Kazuhiko Okabe | 1987-11-10 |