Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5707522 | Permselective membrane of polyacrylonitrile copolymer and process for producing the same | Yasushi Maeda, Hitoshi Tsugaya | 1998-01-13 |
| 5554292 | Permselective membrane of polyacrylonitrile copolymer and process for producing the same | Yasushi Maeda, Hitoshi Tsugaya | 1996-09-10 |