Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695383 | Permselective membrane | Shigeji Konagaya, Osamu Watanabe, Masaya Tokai, Haruhiko Narusawa, Yasuo Kato | 1987-09-22 |
| 4623460 | Fluid separation element | Tetsuo Ukai, Akira Uejima | 1986-11-18 |
| 4430219 | Hollow fiber package body and its production | Tutomu Tanaka, Hiroshi Matsumoto | 1984-02-07 |