Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7262256 | Polycarboxylic acid mixture | Hideki Date | 2007-08-28 |
| 6017455 | Porous membrane | Hiroshi Hachiya | 2000-01-25 |
| 5997741 | Process for preparing a polyether ether ketone membrane | Hiroshi Hachiya | 1999-12-07 |