Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702594 | Apparatus for treatment of waste water and/or exhaust gases containing fluorine and surface active agents | Masaki Kataoka, Kazuyuki Sakata, Shirou Imazu | 1997-12-30 |
| 5702604 | Apparatus and method for waste water treatment utilizing granular sludge | Atsushi Yokotani, Shirou Imazu | 1997-12-30 |
| 5676836 | Method for waste water treatment using charcoal biologically activated | Shirou Imazu, Takashi Fujiwara | 1997-10-14 |
| 5632885 | Hydrogen peroxide removal equipment capable of treating both waste water and waste gas | Atsushi Yokotani | 1997-05-27 |
| 5625586 | Semiconductor memory having a plurality of memory banks and sub-bit lines which are connected to a main bit line via MOS transistors whose gates are commonly connected to a selection line | Teiichiro Nishizaka, Kazutaka Otsuki | 1997-04-29 |
| 5599443 | Apparatus for waste water treatment using charcoal biologically activated | Shirou Imazu, Takashi Fujiwara | 1997-02-04 |