Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626481 | Mineral ore slurry pretreatment method, and method for manufacturing mineral ore slurry | Hirotaka Higuchi | 2020-04-21 |
| 10273558 | Ore slurry pre-treatment method and ore slurry manufacturing method | Hirotaka Higuchi, Go Ohara, Osamu Nakai | 2019-04-30 |
| 10125025 | Method for producing hematite for ironmaking | Go Ohara, Yasumasa Kan | 2018-11-13 |
| 9981858 | Process for producing hemataite for ironmaking | Go Ohara, Yasumasa Kan | 2018-05-29 |
| 9914648 | Process for producing hematite for ironmaking | Go Ohara, Yasumasa Kan | 2018-03-13 |
| 9828256 | Method for producing hematite for ironmaking | Go Ohara, Hideki Sasaki, Yasumasa Kan | 2017-11-28 |
| 9752209 | Method for producing hematite for ironmaking | Go Ohara, Hideki Sasaki, Yasumasa Kan | 2017-09-05 |
| 7563421 | Hydrometallurgical process of nickel oxide ore | Hiroshi Kobayashi, Hirofumi Shouji, Yoshitomo Ozaki, Naoyuki Tsuchida | 2009-07-21 |
| 7449160 | Process of solvent extraction of copper | Kenji Takeda, Kouji Ando, Keiji Kudo | 2008-11-11 |
| 7435405 | Anti-oxidation method for sulfide minerals in sulfide ore | Yoshiyuki Tanaka, Ryoichi Nakayama, Hideyuki Okamoto | 2008-10-14 |
| 7138005 | Nickel refining method | Keiji Kudo, Kouji Ando | 2006-11-21 |
| 7018605 | Sulfidation reaction control method | Hiroshi Kobayashi, Yoshitomo Ozaki | 2006-03-28 |
| 6921426 | Process of recovering copper from ore | Hideyuki Okamoto, Iichi Nakamura | 2005-07-26 |
| 6340427 | Solution purification method for electrolyte | Atsushi Fukui, Kouji Ando | 2002-01-22 |
| 6149885 | Method for purifying a nickel sulfate solution by solvent extraction | Susumu Makino, Naoyuki Tsuchida, Atsushi Goda, Sunao Kanesaka, Kazuyuki Takaishi +1 more | 2000-11-21 |
| 5888462 | Method of solvent extraction of nickel sulfate solutions | Susumu Makino, Naoyuki Tsuchida, Kazuyuki Takaishi, Yoshitomo Ozaki | 1999-03-30 |