Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7829186 | Porous films with chemical resistance | Yo Yamato | 2010-11-09 |
| 7820281 | Process for producing porous film and porous film | Yo Yamato | 2010-10-26 |
| 5393432 | Separating membrane of polyion complex | Masahiko Sugimoto, Yasushi Maeda, Hitoshi Tsugaya | 1995-02-28 |
| 5087367 | Hydrolyzed membrane and process for the preparation of the same | Yasushi Maeda, Hiroki Karakane | 1992-02-11 |
| 4871461 | Polymer composite membrane | Hiroki Karakane, Yasushi Maeda | 1989-10-03 |