Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8853905 | Radial direction controller and magnetic bearing apparatus utilizing same | Mitsunori Watanabe | 2014-10-07 |
| 8337164 | Turbomolecular pump | Takeshi Shoji | 2012-12-25 |
| 7909583 | Pump apparatus and pump unit thereof | Hiroshi Sugimoto, Yoshio Sone | 2011-03-22 |
| 5221179 | Vacuum pump | Tatsuji Ikegami, Keiichi Yoshida, Masashi Iguchi | 1993-06-22 |
| 5219269 | Vacuum pump | Tatsuji Ikegami, Keiichi Yoshida, Masashi Iguchi | 1993-06-15 |
| 5217346 | Vacuum pump | Tatsuji Ikegami, Keiichi Yoshida, Masashi Iguchi | 1993-06-08 |
| 5160250 | Vacuum pump with a peripheral groove pump unit | Tatsuji Ikegami, Keiichi Yoshida, Masashi Iguchi | 1992-11-03 |
| 5074747 | Vacuum pump | Tatsuji Ikegami, Keiichi Yoshida, Masashi Iguchi | 1991-12-24 |