Kupferman; Hanan

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kupferman; Hanan.The latest application filed is for "disk drive comprising preamble aligned zoned servo sectors".

Company Profile

0.25.0

Kupferman; Hanan - Diamond Bar CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Disk drive comprising preamble aligned zoned servo sectors Grant 8,116,023 - Kupferman February 14, 2	2012-02-14
Disk drive estimating a servo zone after synchronously detecting a servo sync mark Grant 7,715,138 - Kupferman May 11, 2	2010-05-11
Disk drive subtracting low frequency disturbance from a servo burst signal Grant 7,619,841 - Kupferman November 17, 2	2009-11-17
Adjusting voltage delivered to disk drive circuitry based on a selected zone Grant 7,551,383 - Kupferman June 23, 2	2009-06-23
Disk drive and method having cost-effective storage of the disk drive's internal program code Grant 7,440,214 - Ell , et al. October 21, 2	2008-10-21
Rotating media storage device having a calibration track with unique calibration servo synch marks Grant 7,372,650 - Kupferman May 13, 2	2008-05-13
Magnetic disk in a disk drive and method having improved null servo burst phasing Grant 7,333,290 - Kupferman February 19, 2	2008-02-19
Disk drive having adaptively-sized sectors to compensate for disk eccentricity Grant 7,215,496 - Kupferman , et al. May 8, 2	2007-05-08
Reducing the length of servo-wedges in a disk drive Grant 7,116,505 - Kupferman October 3, 2	2006-10-03
Disk drives and disk drive containing devices that include a servo frequency generator and spindle control timer that compensate for disk eccentricity Grant 7,075,746 - Kupferman July 11, 2	2006-07-11
Disk drive having one or more partial servo wedges that includes a short servo sync mark that is different than the servo sync word of full servo wedges Grant 7,046,465 - Kupferman May 16, 2	2006-05-16
Disk drive having a disk including a servo burst pattern in which a phase difference between radially adjacent servo bursts is less than 180 degrees Grant 7,027,257 - Kupferman April 11, 2	2006-04-11
Servo synchronization validation techniques based on both servo synch marks and wedge identifiers in a rotating media storage device Grant 7,023,639 - Kupferman April 4, 2	2006-04-04
Disk drive having a disk including a servo burst pattern that improves the signal to noise ratio during track following for writing Grant 7,023,637 - Kupferman April 4, 2	2006-04-04
Disk drive having a disk including a servo burst pattern having a normal servo burst field and a quadrature servo burst field Grant 6,980,389 - Kupferman December 27, 2	2005-12-27
Servo synchronization based on a servo synch mark that conflicts with self-clocking encoding algorithms Grant 6,934,104 - Kupferman August 23, 2	2005-08-23
Disk drive comprising asynchronous/synchronous gain control for fault tolerant detection of servo sync mark after head switch Grant 6,882,486 - Kupferman April 19, 2	2005-04-19
Method of simultaneously writing servo tracks on a hard disk drive Grant 6,687,073 - Kupferman February 3, 2	2004-02-03
Disk drive employing separate read and write repeatable runout estimated values for a head having a read element offset from a write element Grant 6,657,810 - Kupferman December 2, 2	2003-12-02
Method and apparatus for RRO learning before and after shipping to cancel RRO in a disk drive Grant 6,545,835 - Codilian , et al. April 8, 2	2003-04-08
Method of calibrating a write current-setting for servo writing a disk drive Grant 6,525,892 - Dunbar , et al. February 25, 2	2003-02-25
Headerless disk drive comprising repeatable runout (RRO) correction values recorded at a user data rate Grant 6,493,173 - Kim , et al. December 10, 2	2002-12-10
Disk drive employing a non-volatile semiconductor memory for storing read channel parameter calibrated for the disk drive used to recover disk channel parameter Grant 6,480,349 - Kim , et al. November 12, 2	2002-11-12
Constant velocity servo linearity calibration method for MR head Grant 5,940,240 - Kupferman August 17, 1	1999-08-17
Disk drive power control circuit and method Grant 5,412,809 - Tam , et al. May 2, 1	1995-05-02

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