Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795559 | Semipermeable membrane support | Ietsugu Shinjou | 1989-01-03 |
| 4728394 | Semipermeable membrane support and process for preparation thereof | Ietsugu Shinjou | 1988-03-01 |
| 4639390 | Preparation of non-woven fabric containing polyvinyl alcohol fiber | — | 1987-01-27 |