Issued Patents 2004
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825622 | Production line spindle control circuit employing a sinusoidal driver with back EMF control | Robert P. Ryan | 2004-11-30 |
| 6798592 | Method for reducing position error signal in a disk drive | Joseph M. Viglione | 2004-09-28 |
| 6795262 | Method of modifying on-track declaration algorithm of a disk drive based upon detection of external vibration condition | Kent W. Gibbons, Steven L. Webb | 2004-09-21 |
| 6792669 | Method for allocating disk drive spindle motors based on an operating characteristic | — | 2004-09-21 |
| 6791782 | Method and apparatus for determining operational spindle rotation rate in a disk drive | William D. Johns, Joseph M. Viglione | 2004-09-14 |
| 6791791 | Disk drive with disks having different disk stiffness, thickness and material combinations | Steven J. Alfred, Serge Hauert, Lin Yang | 2004-09-14 |
| 6788480 | Method and apparatus for determining track density during a servo-track writing operation | William D. Johns | 2004-09-07 |
| 6781787 | Adjusting seek current profile on the fly | Kent W. Gibbons | 2004-08-24 |
| 6782449 | Adaptively modifying a read caching algorithm based upon the detection of a vibration state within a rotating media storage device | Steven L. Webb | 2004-08-24 |
| 6781780 | Method and system for preventing data loss from an off-track write condition in a disk drive by rewriting data buffered from an adjacent track | — | 2004-08-24 |
| 6760186 | Disk drive having first-written servo wedge marked and method for forming marked servo wedges | Jim G. Saunders | 2004-07-06 |
| 6751041 | Method and apparatus for selecting servo track writing speed | Joseph M. Viglione | 2004-06-15 |
| 6738220 | Servo settling by utilization of a bias torque offset value which depends on the memory of previous seek operations | — | 2004-05-18 |
| 6735033 | Method for recovering from shock events occurring to a disk drive during data write operations to improve data reliability | Michael S. Rothberg | 2004-05-11 |
| 6735041 | Method for seeking in a magnetic disk drive having a spiral track | Charles Frank | 2004-05-11 |
| 6731450 | Disk drive control system and method for determining the temperature of an actuator coil | George J. Bennett | 2004-05-04 |
| 6724564 | Seek distance dependent variable max VCM seek current to control thermal rise in VCM's | David D. Nguyen, David L. Whitaker | 2004-04-20 |
| 6714372 | Method of manufacturing a disk drive by measuring the read width in the servo-writer to set the write unsafe limit | William D. Johns | 2004-03-30 |
| 6714371 | Method and disk drive for shock estimation and write termination control | — | 2004-03-30 |
| 6710966 | Method for reducing an effect of vibration on a disk drive during a track following operation by adjusting an adaptive-filter gain applied to an acceleration sensor signal | Aswartha Narayana, Lan V. Ngo | 2004-03-23 |
| 6707635 | Method and apparatus for RRO learning on alternate tracks before and after shipping to cancel RRO in a disk drive | Donald R. Turner | 2004-03-16 |
| 6707641 | Spindle motor having stator rim formed of concentric laminate layers | Kamran Oveyssi | 2004-03-16 |
| 6707637 | Disk drive including disk spacer with different side surface patterns | Serge Hauert, Steven J. Alfred | 2004-03-16 |
| 6697217 | Disk drive comprising a coating bonded to a printed circuit board assembly | — | 2004-02-24 |
| 6690637 | Disk drive including disk clamp with non-symmetric engaged fastener holes and fastener torque | — | 2004-02-10 |