Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221179 | Vacuum pump | Tetsuro Ohbayashi, Keiichi Yoshida, Masashi Iguchi | 1993-06-22 |
| 5219269 | Vacuum pump | Tetsuro Ohbayashi, Keiichi Yoshida, Masashi Iguchi | 1993-06-15 |
| 5217346 | Vacuum pump | Tetsuro Ohbayashi, Keiichi Yoshida, Masashi Iguchi | 1993-06-08 |
| 5160250 | Vacuum pump with a peripheral groove pump unit | Tetsuro Ohbayashi, Keiichi Yoshida, Masashi Iguchi | 1992-11-03 |
| 5074747 | Vacuum pump | Tetsuro Ohbayashi, Keiichi Yoshida, Masashi Iguchi | 1991-12-24 |
| 4708586 | Thread groove type vacuum pump | Tadashi Sawada, Masashi Iguchi | 1987-11-24 |