Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877852 | Thiophene derivative polymer and a polymer composition thereof | Susumu Tanaka, Masaaki Sato, Kyoji Kaeriyama, Takao Hiraide | 1989-10-31 |
| 4845132 | Hydrophilic porous membrane, method for production thereof, and plasma separator using said membrane | Toshio Masuoka, Okihiko Hirasa, Makoto Onishi, Yukio Seita | 1989-07-04 |
| 4822848 | Hydrophilic-hydrophobic thermally reversible type polymer and method for production thereof | Shoji Ito, Kensaku Mizoguchi | 1989-04-18 |