Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7182926 | Process for separating and recovering valuable metals | — | 2007-02-27 |
| 6333012 | Process for producing ammonium metavanadate | Akira Sakuma, Aritoshi Inoue, Masami Iijima | 2001-12-25 |
| 6033637 | Method for treating combustion ashes | Akira Sakuma, Aritoshi Inoue, Masami Iijima | 2000-03-07 |
| 5587132 | Method for producing high purity vanadium electrolytic solution | Masato Nakajima, Masatoshi Sawahata, Yutaka Nomura, Kanji Sato | 1996-12-24 |