Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6264847 | Method of processing cyanide ions by ozone | Ryozo Ushio, Naoko Kikuta, Koji Sasaki, Yuji Imaizumi, Ryoichi Nakayama +2 more | 2001-07-24 |
| 4663279 | Method of beneficiation of complex sulfide ores | Hiroichi Miyashita, Hajime Nakazawa | 1987-05-05 |