Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9702023 | Method for producing high-purity nickel sulfate | Yoshitomo Ozaki, Shin-ichi Heguri, Keiji Kudou, Hideki Ohara, Shinya Matsumoto | 2017-07-11 |
| 9068244 | Method for recovering chromite, and method for wet smelting of nickel oxide ore | Hiroyuki Mitsui, Osamu Nakai, Hirotaka Kawasaki, Hiroshi Kobayashi, Tatsuya Higaki | 2015-06-30 |
| 8052774 | Method for concentration of gold in copper sulfide minerals | Noriyuki Nagase, Satoshi Asano, Masatoshi Takano, Kenji Takeda, Shinichi Heguri | 2011-11-08 |