Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5422395 | Vinyl acetylsalicylate-vinyl alcohol based copolymer | Makoto Ooura, Yoshiro Onda | 1995-06-06 |
| 4694077 | Novel cellulose derivative, process for preparing the same and sulfur dioxide gas permselective membrane comprising the same | Tomoo Shiomi, Yasuyuki Tezuka | 1987-09-15 |
| 4279795 | Hydrophilic-hydrophobic graft copolymers for self-reinforcing hydrogels | Shuzo Yamashita, Kyoichiro Shibatani, Kiochi Takakura | 1981-07-21 |