Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833237 | Process for producing granular porous chitosan | Yoshihide Kawamura, Itsuo Kurahashi, Hiroshi Seo, Saburo Nakajima | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833237 | Process for producing granular porous chitosan | Yoshihide Kawamura, Itsuo Kurahashi, Hiroshi Seo, Saburo Nakajima | 1989-05-23 |