Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11214849 | Method for recovering scandium | Hidemasa Nagai, Keiji Kudo, Itsumi Matsuoka, Hirofumi Shoji, Shin-ya Matsumoto +1 more | 2022-01-04 |
| 10766072 | Method for producing high density nickel powder | Hideki Ohara, Shin-ichi Heguri, Kazuyuki Takaishi, Osamu Ikeda, Tomoaki Yoneyama +1 more | 2020-09-08 |
| 10549351 | Method for producing nickel powder | Shin-ichi Heguri, Kazuyuki Takaishi, Tomoaki Yoneyama, Hideki Ohara, Osamu Ikeda +1 more | 2020-02-04 |
| 10518332 | Method for producing nickel powder | Kazuyuki Takaishi, Shin-ichi Heguri, Ryo-ma Yamaguma, Yasuo Doi | 2019-12-31 |
| 10500644 | Method for producing nickel powder having low carbon concentration and low sulfur concentration | Shin-ichi Heguri, Kazuyuki Takaishi, Osamu Ikeda, Hideki Ohara, Tomoaki Yoneyama +1 more | 2019-12-10 |
| 10434577 | Method for producing nickel powder | Kazumichi Yanagisawa, Junhao Zhang, Kazuyuki Takaishi, Tomoaki Yoneyama, Shin-ichi Heguri +3 more | 2019-10-08 |
| 10227675 | Wet smelting method for nickel oxide ore | Hirofumi Shouji, Keiji Kudo, Hiroshi Kobayashi, Satoshi Asano | 2019-03-12 |
| 10220446 | Method for producing nickel powder | Kazumichi Yanagisawa, Junhao Zhang, Shin-ichi Heguri, Kazuyuki Takaishi, Hideki Ohara +3 more | 2019-03-05 |
| 10190189 | Scandium recovery process | Toshihiko Nagakura, Hidemasa Nagai, Tatsuya Higaki | 2019-01-29 |
| 10118224 | Method for producing nickel powder | Kazumichi Yanagisawa, Junhao Zhang, Shin-ichi Heguri, Hideki Ohara, Osamu Ikeda +2 more | 2018-11-06 |
| 10092955 | Method for producing nickel powder | Kazumichi Yanagisawa, Junhao Zhang, Shin-ichi Heguri, Kazuyuki Takaishi, Hideki Ohara +3 more | 2018-10-09 |
| 10081851 | Method for recovering high-purity scandium | Itsumi Matsuoka, Hidemasa Nagai, Keiji Kudo, Shin-ya Matsumoto, Tatsuya Higaki +2 more | 2018-09-25 |
| 9963762 | Scandium recovery method | Tatsuya Higaki, Shin-ya Matsumoto, Itsumi Matsuoka, Hidemasa Nagai, Toshihiko Nagakura +1 more | 2018-05-08 |
| 9938158 | Hematite manufacturing process and hematite manufactured by same | Hideki Ohara | 2018-04-10 |
| 9776885 | Method for producing hematite for ironmaking | Manabu Enomoto, Hirofumi Shouji, Tatsuya Higaki | 2017-10-03 |
| 9719153 | Method for shortening operation shutdown time of high pressure acid leach equipment in a hydrometallurgical process | Keisuke Shibayama, Osamu Nakai | 2017-08-01 |
| 9702023 | Method for producing high-purity nickel sulfate | Atsushi Idegami, Shin-ichi Heguri, Keiji Kudou, Hideki Ohara, Shinya Matsumoto | 2017-07-11 |
| 9567239 | Method for producing high-purity nickel sulfate and method for removing impurity element from solution containing nickel | Shin-ichi Heguri, Keiji Kudo | 2017-02-14 |
| 9561972 | Method for effluent treatment in smelting of nickel oxide ore | Yasuo Yoshii, Keisuke Shibayama, Yoji Kyoda, Osamu Nakai, Hiroyuki Mitsui | 2017-02-07 |
| 9499879 | Method for producing high-purity cobalt sulfate aqueous solution | Takayuki Nakai, Shinichi Heguri, Hideki Ohara | 2016-11-22 |
| 9458038 | Wastewater treatment process | Hideki Ohara | 2016-10-04 |
| 9458526 | Method for separating impurities from an acidic solution containing nickel and cobalt and/or scandium | Masahiro Goto, Fukiko Kubota, Yuzo Baba, Jiro Hayata, Tatsuya Higaki +2 more | 2016-10-04 |
| 9404169 | Method for recovering scandium | Masatoshi Takano, Satoshi Asano, Masahiro Goto, Fukiko Kubota, Yuzo Baba | 2016-08-02 |
| 9399804 | Method for recovering scandium | Toshihiko Nagakura | 2016-07-26 |
| 9328399 | Operating method in hydrometallurgy of nickel oxide ore | Jun Takahashi, Yu Yamashita, Hideki Ohara | 2016-05-03 |