Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6509060 | Method for manufacturing filter having ceramic porous film as separating film | Makoto Ito, Tatsuya Hishiki, Masahiro Murasato, Manabu Isomura | 2003-01-21 |
| 4810273 | Porous ceramic filter | — | 1989-03-07 |
| 4746341 | Porous ceramic filter and process of producing the same | — | 1988-05-24 |
| 4719058 | Process of producing multiple-layer filter medium | — | 1988-01-12 |