Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5002642 | Method for electrowinning a metal using an electrode unit consisting of assembled anode plates and cathode plates and a frame body for forming such an electrode unit | Koichi Kaneko, Kiyotaka Abe, Takeo Kimura, Mitsuru Ohkoda | 1991-03-26 |