Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705830 | Vacuum pump | Yoshihiro Yamashita, Yoshiyuki Sakaguchi | 2004-03-16 |
| 6559568 | Magnetic bearing type vacuum pump | Masayoshi Takamine | 2003-05-06 |
| 6499973 | Turbo molecular pump | — | 2002-12-31 |
| 6465924 | Magnetic bearing device and a vacuum pump equipped with the same | — | 2002-10-15 |
| 6023115 | Magnetic bearing apparatus with radial position correcting electromagnet | — | 2000-02-08 |
| 5955811 | Electromagnetic rotary machine having magnetic bearing | Akira Chiba, Tadashi Fukao | 1999-09-21 |