Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8198852 | Drive control circuit for polyphase motor capable of reducing variation among armature currents of respective phases, and spindle apparatus using the same | Akio Nakajima | 2012-06-12 |
| 7066652 | Externally pressurized gas bearing and spindle equipment using this | Yoshio Fujikawa, Kiyotaka Kusunoki, Ryu Inoue | 2006-06-27 |