Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4658057 | Extraction method | Kunio Koga, Hirotoshi Niwa | 1987-04-14 |
| 4562288 | Method of operating mixer-settler | Kunio Koga, Mutsumi Samejima | 1985-12-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4658057 | Extraction method | Kunio Koga, Hirotoshi Niwa | 1987-04-14 |
| 4562288 | Method of operating mixer-settler | Kunio Koga, Mutsumi Samejima | 1985-12-31 |