Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7630166 | Control flow instability to reduce disk flutter and half frequency whirl | — | 2009-12-08 |
| 7493695 | Method for designing a fluid dynamic bearing system | Troy M. Herndon, Jeffry Arnold LeBlanc, Robert A. Nottingham | 2009-02-24 |
| 7090401 | Grooving pattern for grooved fluid bearing | Gunter Heine, Hans Leuthold, Anthony Joseph Aiello | 2006-08-15 |
| 6933643 | Multiple radial/axial surfaces to enhance fluid bearing performance | Gunter Heine | 2005-08-23 |
| 6874940 | Low power hybrid bearing | Gunter Heine | 2005-04-05 |
| 6817767 | Hybrid spindle bearing | Michael D. Kennedy, Hans Leuthold | 2004-11-16 |
| 6801387 | Control flow instability to reduce disk flutter and half frequency whirl | — | 2004-10-05 |
| 6799892 | Hybrid spindle bearing | Hans Leuthold, Michael D. Kennedy, Alan Lyndon Grantz, Susan Immisch, Norbert Parsoneault | 2004-10-05 |
| 6592262 | Bearing performance enhancement utilizing sleeve/hub radial surfaces | — | 2003-07-15 |
| 6583952 | In-hub spindle motor with separate fluid dynamic bearings | Alan Lyndon Grantz, Norbert Steven Parsoneault, Samnathan Murthy, Hans Leuthold | 2003-06-24 |
| 6473271 | Aerodynamically streamlined actuator arm for disc drives | Hans Leuthold | 2002-10-29 |
| 6292328 | Both ends open fluid dynamic bearing having a journal in combination with a conical bearing | Gunter Heine, Hans Leuthold, Raquib Uddin Khan | 2001-09-18 |
| 6280088 | Crowned conical bearing | Hans Leuthold, Matt L. Shumway, Alan Lyndon Grantz, Roger A. Addy, Norbert Parsoneault +1 more | 2001-08-28 |
| 6154339 | Centrifugal capillary seal for use with fluid dynamic bearings | Alan Lyndon Grantz | 2000-11-28 |
| 6144523 | Simplified conical bearing with independent flow paths | Samnathan Murthy, Alan Lyndon Grantz, Steve Parsoneault, Roger A. Addy, Peter Riegler | 2000-11-07 |
| 6137650 | Spindle motor with fluid dynamic bearing having a journal bearing in combination with a conical bearing | Gunter Heine, Raquib Uddin Khan, Hans Leuthold | 2000-10-24 |
| 6130802 | Both ends open fluid dynamic bearing having a journal in combination with a conical bearing | Gunter Heine, Hans Leuthold, Raquib Uddin Khan | 2000-10-10 |
| 6118620 | In-hub spindle motor with separate fluid dynamic bearings | Alan Lyndon Grantz, Norbert Steven Parsoneault, Samnathan Murthy, Hans Leuthold | 2000-09-12 |
| 6069768 | Spindle motor with multiple thrust plate fluid dynamic bearing | Gunter Heine, Raquib Uddin Khan, Hans Leuthold | 2000-05-30 |
| 6069767 | Both ends open fluid dynamic bearing with multiple thrust plates | Raquib Uddin Khan, Gunter Heine, Hans Leuthold | 2000-05-30 |
| 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 |
| 6005748 | Spindle motor with multiple thrust plate fluid dynamic bearing | Gunter Heine, Raquib Uddin Khan, Hans Leuthold | 1999-12-21 |
| 5997179 | Multifluid application in hydrodynamic fluid bearing to reduce evaporation and control stiffness and other bearing performance | Raquib Uddin Khan, Gunter Heine | 1999-12-07 |
| 5841607 | Hydrodynamic seal for disc drive spindle motor | Raquib Uddin Khan | 1998-11-24 |