Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665243 | Method for removing metal contained in solution using surfactant having chelating ability | Naoki Abe, Koji Mizuno, Masayuki Sumiyoshi, Kojiro Murayama, Koichi Sugiura +3 more | 1997-09-09 |
| 5650056 | Method of and apparatus for removing metal contained in solution and surfactant having chelating ability and used suitably for the same | Naoki Abe, Koji Mizuno, Masayuki Sumiyoshi, Kojiro Murayama, Koichi Sugiura +3 more | 1997-07-22 |