Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540079 | Sludge filtration apparatus and filter assembly thereof | Koji Yoshida | 2013-09-24 |
| 5441651 | Method and apparatus for processing sludge | Hiroshi Fukuzawa, Toshitaka Arai | 1995-08-15 |
| 5401375 | Electro-endosmosis type dehydrator | Hitomi Kawakami, Hiroshi Matsushita, Hiroshi Imanishi | 1995-03-28 |
| 5192413 | Electroosmotic dewaterer | Michio Nakagawa, Hideyuki Ohanamori, Masayuki Yoshida, Toshitaka Arai, Hiroshi Matsushita | 1993-03-09 |