Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279856 | Hydrophilic porous membrane, method of manufacturing the same and liquid filter using same | Noriyuki Koyama, Yasushi Nemoto, Makoto Ohnishi | 1994-01-18 |
| 5221474 | Transfusion filtering device | Osamu Yokono | 1993-06-22 |
| D333348 | Anesthesia solution filter | — | 1993-02-16 |
| 5120440 | Hydrophilic porous membrane and process for preparing the same | Yasushi Nemoto, Hideaki Kito | 1992-06-09 |
| 4965291 | Method of manufacturing porous membrane and porous membrane manufactured by the same method | Hideaki Kitoh, Yukio Seita, Noriyuki Koyama | 1990-10-23 |