Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5598071 | Method for starting and commutating a permanent-magnet direct current motor having a single phase winding | Gunter Heine, Marcel Jufer, Kamran Oveyssi | 1997-01-28 |
| 5598048 | Integrated passive magnetic bearing system and spindle magnet for use in an axial magnet spindle motor | Kamran Oveyssi | 1997-01-28 |
| 5590003 | Hydrodynamic spindle motor having distributed windings | Gunter Heine | 1996-12-31 |
| 5587617 | Integrated passive magnetic bearing system and spindle magnet for use in an axial magnet spindle motor | Kamran Oveyssi | 1996-12-24 |
| 5581424 | Magnetic crash stop and latch in a disc drive | Jeffrey P. Stram, Thomas A. Hickox | 1996-12-03 |
| 5578882 | Passive magnetic bearings for a spindle motor | Kamran Oveyssi, Gunter Heine | 1996-11-26 |
| 5579188 | Ironless spindle motor for disc drive | Gunter Heine, Kamran Oveyssi, Marcel Jufer | 1996-11-26 |
| 5569990 | Detection of starting motor position in a brushless DC motor | — | 1996-10-29 |
| 5561335 | Integrated passive magnetic bearing system and spindle permanent magnet for use in a spindle motor | Kamran Oveyssi | 1996-10-01 |
| 5548458 | Support flange having electrical contacts to provide electrical continuity upon spindle motor mounting to base | Robert M. Pelstring, Klaus Kloeppel, Michael Kenneth Andrews, Clifford Jue | 1996-08-20 |
| 5545937 | Integrated passive magnetic bearing system and spindle permanent magnet for use in a spindle motor | Kamran Oveyssi | 1996-08-13 |
| 5541460 | Passive magnetic bearings for a spindle motor | Kamran Oveyssi, Gunter Heine | 1996-07-30 |
| 5524985 | Fluid thermal compensation and containment for hydrodynamic bearings | — | 1996-06-11 |
| 5485331 | High resistivity bearing balls for spindle motor isolation | Klaus Kloeppel, Robert M. Pelstring, Donald J. MacLeod, Michael John Raffetto, Frederick Frank Kazmierczak | 1996-01-16 |
| 5481144 | Wire guide and adhesive retaining ring for disc drive spindle motor | Steven C. Knoche, Klaus Kloeppel | 1996-01-02 |
| 5473484 | Apparatus for electrically grounding a rotor hub in a disc drive motor | Robert M. Pelstring | 1995-12-05 |
| 5459362 | Small form factor actuator for improved functionality and linearity | Gunter Heine | 1995-10-17 |
| 5454724 | Floating electrical contact for spindle motor | Klaus Kloeppel, Robert M. Pelstring | 1995-10-03 |
| 5260618 | Space optimization voice coil motor for disc drives | Gunter Heine | 1993-11-09 |
| 5254914 | Position detection for a brushless DC motor without Hall effect devices using a mutual inductance detection method | Gunter Heine | 1993-10-19 |
| 5028852 | Position detection for a brushless DC motor without hall effect devices using a time differential method | — | 1991-07-02 |