Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702604 | Apparatus and method for waste water treatment utilizing granular sludge | Kazuyuki Yamasaki, Shirou Imazu | 1997-12-30 |
| 5632885 | Hydrogen peroxide removal equipment capable of treating both waste water and waste gas | Kazuyuki Yamasaki | 1997-05-27 |