Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324764 | Apparatus for continuous leaching of ores | Shoichi Hasegawa, Mitsuo Kameda | 1982-04-13 |
| 4225563 | Process and apparatus for continuous leaching of ores | Shoichi Hasegawa, Mitsuo Kameda | 1980-09-30 |