Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203997 | Hydrophilic porous membrane, method of manufacturing the same and liquid filter using the same | Shinsuke Yokomati, Yasushi Nemoto, Makoto Ohnishi | 1993-04-20 |
| 5032331 | Method for production of hydrophilic porous membrane of polyvinylidene fluoride | Makoto Onishi, Yukio Seita | 1991-07-16 |
| 4965291 | Method of manufacturing porous membrane and porous membrane manufactured by the same method | Hideaki Kitoh, Yukio Seita, Shinsuke Yokomachi | 1990-10-23 |
| 4943373 | Hydrophilic porous membrane of polyvinylidene fluoride and method for production thereof | Makoto Onishi, Yukio Seita | 1990-07-24 |
| 4776959 | Hydrophilic porous membrane and method for manufacturing thereof | Masaaki Kasai | 1988-10-11 |
| 4772440 | Method for production of porous membrane | Masaaki Kasi | 1988-09-20 |