Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879038 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1989-11-07 |
| 4877617 | Fungicidal and bactericidal method | Tatsuo Goto | 1989-10-31 |
| 4830752 | Separation agent comprising 1,3-glucan | Tohru Shibata, Ichiro Okamoto | 1989-05-16 |