Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7563421 | Hydrometallurgical process of nickel oxide ore | Hiroshi Kobayashi, Hirofumi Shouji, Masaki Imamura, Yoshitomo Ozaki | 2009-07-21 |
| 6153081 | Method of recovering antimony and bismuth from copper electrolyte | Atsushi Fukui, Kouji Ando | 2000-11-28 |
| 6149885 | Method for purifying a nickel sulfate solution by solvent extraction | Susumu Makino, Atsushi Goda, Sunao Kanesaka, Masaki Imamura, Kazuyuki Takaishi +1 more | 2000-11-21 |
| 5888462 | Method of solvent extraction of nickel sulfate solutions | Susumu Makino, Masaki Imamura, Kazuyuki Takaishi, Yoshitomo Ozaki | 1999-03-30 |