Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845239 | Phosphoric esters and process for preparing the same | Tohru Katoh, Akira Matsunaga, Tomihiro Kurosaki | 1989-07-04 |
| 4812254 | Detergent composition | Tomohiko Sano, Tomihiro Kurosaki | 1989-03-14 |