Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973232 | Rotating scroll machine with oil pump | Kozaburo Fujii, Kiyonori Tokumitsu, Mitsuhiro Nishida | 1990-11-27 |
| 4865530 | Scroll-type vacuum apparatus with oil supply to a compression chamber | Mitsuhiro Nishida, Etsuo Morishita | 1989-09-12 |
| 4846640 | Scroll-type vacuum apparatus with rotating scrolls and discharge valve | Mitsuhiro Nishida, Etsuo Morishita | 1989-07-11 |
| 4842499 | Scroll-type positive displacement apparatus with oil supply to compression chamber | Mitsuhiro Nishida, Etsuo Morishita | 1989-06-27 |