Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118620 | In-hub spindle motor with separate fluid dynamic bearings | Alan Lyndon Grantz, Norbert Steven Parsoneault, Samnathan Murthy, Mohamed Mizanur Rahman | 2000-09-12 |
| 6069767 | Both ends open fluid dynamic bearing with multiple thrust plates | Raquib Uddin Khan, Gunter Heine, Mohamed Mizanur Rahman | 2000-05-30 |
| 6069768 | Spindle motor with multiple thrust plate fluid dynamic bearing | Gunter Heine, Raquib Uddin Khan, Mohamed Mizanur Rahman | 2000-05-30 |
| 6065877 | Thermal compensation for fluid dynamic bearing using bimetal parts | Alan Lyndon Grantz, Matt L. Shumway, Norbert Steven Parsoneault, Etoli Wolff, Michael D. Kennedy +4 more | 2000-05-23 |
| 6019516 | Crowned conical bearing | Matt L. Shumway, Alan Lyndon Grantz, Roger A. Addy, Norbert Steven Parsoneault, Samnathan Murthy +1 more | 2000-02-01 |
| 6005748 | Spindle motor with multiple thrust plate fluid dynamic bearing | Gunter Heine, Raquib Uddin Khan, Mohamed Mizanur Rahman | 1999-12-21 |
| 5993066 | Fluid retention principle for hydrodynamic bearings | Coda H. Pan, David Jennings, Lakshman Nagarathnam, Raquib Uddin Khan, Wesley R. Clark +1 more | 1999-11-30 |
| 5977674 | Single plate hydrodynamic bearing with self-balancing fluid level | David Jennings, Gunter Heine, Lakshman Nagarathnam | 1999-11-02 |
| 5969903 | Magnetic particle trap for hydrodynamic bearing | Norbert Steven Parsoneault, Michael D. Kennedy | 1999-10-19 |
| 5940246 | Disc drive hydro bearing lubricant with electrically conductive, non-metallic additive | Raquib Uddin Khan, Samnathan Murthy, Norbert Steven Parsoneault | 1999-08-17 |
| 5930075 | Disc drive spindle motor having hydro bearing with optimized lubricant viscosity | Raquib Uddin Khan, David Jennings, Gregory I. Rudd, Gunter Heine | 1999-07-27 |
| 5908247 | Sinusoidal grooving pattern for grooved journal bearing | David Jennings, Lakshman Nagarathnam, Alan Lyndon Grantz, Steve Parsoneault | 1999-06-01 |
| 5907456 | Disc drive spindle motor having hydro bearing with lubricant optimized with disc drive compatible additives | Raquib Uddin Khan, Gregory I. Rudd, Louis Borelis, Gunter Heine | 1999-05-25 |
| 5795074 | Grooved hydrodynamic thrust bearing | Mohamed Mizanur Rahman, Wesley R. Clark | 1998-08-18 |
| 5793129 | Low distortion interference fits for spindle motor assembly | Norbert Steven Parsoneault, David Jennings, Samnathan Murthy | 1998-08-11 |
| 5710678 | Disc drive with self-pressurizing fluid bearing and shaft-supporting-ball retaining element | David Jennings, Lakshman Nagarathman, Steve Gonzalez, Dean Tarrant, Gunter Heine | 1998-01-20 |
| 5697708 | Hydrodynamic bearing with reduced temperature sensitivity | David Jennings, Lakshman Nagarathnam, Raquib Uddin Khan, Greg Rudd | 1997-12-16 |
| 5685647 | Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation | David Jennings, Wesley R. Clark, Raquib Uddin Khan, Guenther Heine | 1997-11-11 |
| 5666716 | Low distortion interference fits for spindle motor assembly | Norbert Steven Parsoneault, David Jennings, Samnathan Murthy | 1997-09-16 |
| 5653540 | Hydrodynamic bearing assembly with single sided grooved counterplace | Gunter Heine, Lakshman Nagarathnam, David Jennings, Norbert Steven Parsoneault | 1997-08-05 |
| 5577842 | Absorbent oil barrier for hydrodynamic bearing | Norbert Steven Parsoneault | 1996-11-26 |
| 5533812 | Single plate hydrodynamic bearing with self-balancing fluid level | David Jennings, Gunter Heine, Lakshman Nagarathnam | 1996-07-09 |
| 5524986 | Fluid retention principles for hydrodynamic bearings | Coda H. Pan, David Jennings, Lakshman Nagarathnam, Raquib Uddin Khan, Wesley R. Clark +1 more | 1996-06-11 |
| 5487608 | Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation | David Jennings, Wesley R. Clark, Raquib Uddin Khan, Guenther Heine | 1996-01-30 |
| 5457589 | Hub-disc interface reducing hub reloaded disc surface curvature | David Jennings, Gerold Heiner, Donald J. MacLeod | 1995-10-10 |