Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7906029 | Sludge thickening method | Hiroichi Kawasaki, Masayoshi Katayama, Manabu Yamashita, Masaharu Miyawaki | 2011-03-15 |
| 7828961 | Sludge thickening device | Hiroichi Kawasaki, Masayoshi Katayama, Manabu Yamashita, Masaharu Miyawaki | 2010-11-09 |