Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9428820 | Method for producing cobalt sulfate | Takayuki Nakai, Shin-ichi Heguri | 2016-08-30 |
| 8052774 | Method for concentration of gold in copper sulfide minerals | Satoshi Asano, Masatoshi Takano, Kenji Takeda, Shinichi Heguri, Atsushi Idegami | 2011-11-08 |