Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702594 | Apparatus for treatment of waste water and/or exhaust gases containing fluorine and surface active agents | Kazuyuki Yamasaki, Masaki Kataoka, Kazuyuki Sakata | 1997-12-30 |
| 5702604 | Apparatus and method for waste water treatment utilizing granular sludge | Kazuyuki Yamasaki, Atsushi Yokotani | 1997-12-30 |
| 5676836 | Method for waste water treatment using charcoal biologically activated | Kazuyuki Yamasaki, Takashi Fujiwara | 1997-10-14 |
| 5599443 | Apparatus for waste water treatment using charcoal biologically activated | Kazuyuki Yamasaki, Takashi Fujiwara | 1997-02-04 |