Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871464 | Method for extracting metal ions | Tsugio Kaneko, Yoshinobu Nishiyama, Toshiharu Shibata | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871464 | Method for extracting metal ions | Tsugio Kaneko, Yoshinobu Nishiyama, Toshiharu Shibata | 1989-10-03 |