Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879038 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Hajime Namikoshi, Ichiro Okamoto | 1989-11-07 |
| 4846968 | Resolving agent | Yoichi Yuki, Ichiro Okamoto, Hiroyuki Nakamura | 1989-07-11 |
| 4830752 | Separation agent comprising 1,3-glucan | Hajime Namikoshi, Ichiro Okamoto | 1989-05-16 |
| 4818394 | Separating agent | Yoshio Okamoto, Koichi Hatada, Ichiro Okamoto, Hiroyuki Nakamura | 1989-04-04 |