Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6141856 | Method of fabricating rotors with retaining cylinders and reduced harmonic field effect losses | Roger N. Johnson, Gerald Burt Kliman, Wen Liang Soong | 2000-11-07 |
| 5825112 | Doubly salient motor with stationary permanent magnets | Thomas A. Lipo, Feng Liang | 1998-10-20 |
| 5801470 | Rotors with retaining cylinders and reduced harmonic field effect losses | Roger N. Johnson, Gerald Burt Kliman, Wen Liang Soong | 1998-09-01 |
| 5672925 | Doubly salient variable reluctance machine with stationary permanent magnets or auxiliary field windings | Thomas A. Lipo, Feng Liang | 1997-09-30 |
| 5455473 | Field weakening for a doubly salient motor with stator permanent magnets | Thomas A. Lipo, Feng Liang | 1995-10-03 |
| 5359272 | Sensorless drive control and method for doubly-fed reluctance motor | — | 1994-10-25 |
| 5304882 | Variable reluctance motors with permanent magnet excitation | Thomas A. Lipo | 1994-04-19 |