Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593626 | Method of fabricating molded filter element | — | 1997-01-14 |
| 5498349 | Filtration concentration apparatus and method | Yoichi Kurahashi, Yoshifumi Usui, Kazuhiko Yagishita | 1996-03-12 |
| 5034127 | Filter assembly for purifying brine | Fumio Hine | 1991-07-23 |
| 4963258 | Filter with perforated fin portions extending from outer cylindrical wall | — | 1990-10-16 |
| 4944870 | Automatic filtration dewatering system | Yasunori Iriyama | 1990-07-31 |
| 4919806 | Cross-flow type filter system | — | 1990-04-24 |
| 4861385 | Article washing method | — | 1989-08-29 |
| 4762624 | Apparatus and method for filtration and concentration of suspension | — | 1988-08-09 |
| 4746441 | Method of purifying brine for electrolytic chemical production | Fumio Hine | 1988-05-24 |
| 4717486 | Method of filtering suspension | Monpei Shirato, Eiji Iritani, Kazuhiko Yagishita | 1988-01-05 |
| 4451298 | Method and system for recycling washing liquids and the heat contained therein | Noboru Mori, Kinshiro Kusumi, Yoshio Tsugi | 1984-05-29 |