Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4715991 | Aqueous high concentration surfactant slurry containing an olefin sulfonate | Yoshie Hirakouchi, Masatoshi Takahashi | 1987-12-29 |
| 4412945 | Aqueous high concentration slurry of alcohol ethoxylate | Masatoshi Takahashi, Mituo Sugiyama, Yasuo Ishizaki | 1983-11-01 |