Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857040 | High-speed centrifugal extractor having improved weirs | Hidechiyo Kashihara, Shin Nemoto | 1989-08-15 |
| 4824430 | High-speed centrifugal extractor having spiral liquid path | Hidechiyo Kashihara, Shin Nemoto | 1989-04-25 |