Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028939 | Method for nickel concentration processing of saprolite ore | Jun Takahashi | 2011-10-04 |
| 6921426 | Process of recovering copper from ore | Masaki Imamura, Hideyuki Okamoto | 2005-07-26 |
| 6264847 | Method of processing cyanide ions by ozone | Ryozo Ushio, Naoko Kikuta, Koji Sasaki, Yuji Imaizumi, Ryoichi Nakayama +2 more | 2001-07-24 |