Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630554 | Method of separating and recovering valuable metals and non-metals from composite materials | Chiaki Izumikawa, Hiroyuki Iwata, Shigehisa Endoh | 1997-05-20 |
| 4982906 | Multi-chamber inclined ball mill | Hiroshi Sakamoto, Mitsuru Yamamoto | 1991-01-08 |