Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7906029 | Sludge thickening method | Kenzou Sugaya, Masayoshi Katayama, Manabu Yamashita, Masaharu Miyawaki | 2011-03-15 |
| 7828961 | Sludge thickening device | Kenzou Sugaya, Masayoshi Katayama, Manabu Yamashita, Masaharu Miyawaki | 2010-11-09 |
| 5741418 | Filter cloth suspending apparatus in filter press | Akitoshi Iwatani | 1998-04-21 |
| 5167801 | Filter press with cake removing device | — | 1992-12-01 |