Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970077 | Method for adding starting material slurry and sulfuric acid to autoclave in high pressure acid leaching process and autoclave | Satoshi Matsubara, Osamu Nakai, Takashi Sakamoto, Koichiro Maki, Masaki Kitahara +1 more | 2018-05-15 |
| 9896740 | Method for operating flash vessel | Satoshi Matsubara, Osamu Nakai, Takashi Sakamoto | 2018-02-20 |
| 9731980 | Processing device and processing method for hydrogen-sulphide-containing barren solution | Takayuki Nakai, Satoshi Matsubara, Osamu Nakai | 2017-08-15 |
| 9732400 | Autoclave apparatus used during high-pressure acid leaching process | Satoshi Matsubara, Osamu Nakai, Takashi Sakamoto, Haruo Ishikawa, Koichiro Maki | 2017-08-15 |
| 9561972 | Method for effluent treatment in smelting of nickel oxide ore | Yasuo Yoshii, Keisuke Shibayama, Yoshitomo Ozaki, Osamu Nakai, Hiroyuki Mitsui | 2017-02-07 |
| 9464341 | Flash vessel and method for operating same | Satoshi Matsubara, Osamu Nakai, Takashi Sakamoto | 2016-10-11 |
| 9410226 | Ore slurry production method and metal refining method | Hiroyuki Mitsui, Keisuke Shibayama, Hirofumi Shoji, Tatsuya Higaki, Osamu Nakai | 2016-08-09 |