Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583952 | In-hub spindle motor with separate fluid dynamic bearings | Alan Lyndon Grantz, Norbert Steven Parsoneault, Hans Leuthold, Mohamed Mizanur Rahman | 2003-06-24 |
| 6296390 | Single plate hydrodynamic bearing with extended single journal bearing | Etoli Wolff, Norbert Steven Parsoneault, Hans Leuthold | 2001-10-02 |
| 6280088 | Crowned conical bearing | Hans Leuthold, Matt L. Shumway, Alan Lyndon Grantz, Roger A. Addy, Norbert Parsoneault +1 more | 2001-08-28 |
| 6144523 | Simplified conical bearing with independent flow paths | Alan Lyndon Grantz, Steve Parsoneault, Roger A. Addy, Peter Riegler, Mohamed Mizanur Rahman | 2000-11-07 |
| 6118620 | In-hub spindle motor with separate fluid dynamic bearings | Alan Lyndon Grantz, Norbert Steven Parsoneault, Hans Leuthold, Mohamed Mizanur Rahman | 2000-09-12 |
| 6065877 | Thermal compensation for fluid dynamic bearing using bimetal parts | Hans Leuthold, Alan Lyndon Grantz, Matt L. Shumway, Norbert Steven Parsoneault, Etoli Wolff +4 more | 2000-05-23 |
| 6019516 | Crowned conical bearing | Hans Leuthold, Matt L. Shumway, Alan Lyndon Grantz, Roger A. Addy, Norbert Steven Parsoneault +1 more | 2000-02-01 |
| 5946958 | Device for manufacturing a groove bearing | Wesley R. Clark, Roger A. Addy, David Jennings | 1999-09-07 |
| 5940246 | Disc drive hydro bearing lubricant with electrically conductive, non-metallic additive | Raquib Uddin Khan, Norbert Steven Parsoneault, Hans Leuthold | 1999-08-17 |
| 5793129 | Low distortion interference fits for spindle motor assembly | Norbert Steven Parsoneault, Hans Leuthold, David Jennings | 1998-08-11 |
| 5666716 | Low distortion interference fits for spindle motor assembly | Norbert Steven Parsoneault, Hans Leuthold, David Jennings | 1997-09-16 |