Inventor · disambiguated record
Ashok K. Desai
Also filed as: BRAND ABRAHAM · DESAI ASHOK K
17 granted patents·2 pending applications·1,243 citations·filing 1974–2015
96Inventor score
Files withWESTERN DIGITAL TECH INC9BRAND TECHNOLOGIES2PERTEC CORP2CALAWAY CHARLES J1MICROPOLIS CORP1
Top patents by PatentIndex Score
19 records- 0198US7548392B1Disk drive controlling a voice coil motor during an emergency unloadWESTERN DIGITAL TECH INC·Filed 2007·Granted Jun 16, 2009·123 cites·21 claims
- 0297US7573670B1Disk drive seeking to OD track and then ramping velocity to implement fast unloadWESTERN DIGITAL TECH INC·Filed 2007·Granted Aug 11, 2009·114 cites·11 claims
- 0397US7095579B1Disk drive employing momentum based unload during power failureWESTERN DIGITAL TECH INC·Filed 2005·Granted Aug 22, 2006·118 cites·12 claims
- 0496US7876522B1Disk drive updating estimate of voice coil resistance to account for resistance change prior to unload operationWESTERN DIGITAL TECH INC·Filed 2008·Granted Jan 25, 2011·123 cites·24 claims
- 0596US7800857B1Disk drive calibrating voice coil resistance for velocity control of voice coil motorWESTERN DIGITAL TECH INC·Filed 2009·Granted Sep 21, 2010·119 cites·12 claims
- 0695US7224546B1Disk drive employing a calibrated brake pulse to reduce acoustic noise when latching an actuator armWESTERN DIGITAL TECH INC·Filed 2004·Granted May 29, 2007·111 cites·18 claims
- 0794US8610391B1Disk drive optimizing spindle motor torque by adjusting leading phase angle during spin-upYANG WENLI·Filed 2011·Granted Dec 17, 2013·117 cites·6 claims
- 0893US3944940AVersatile phase-locked loop for read data recoveryPERTEC CORP·Filed 1974·Granted Mar 16, 1976·41 cites·10 claims
- 0991US8072703B1Disk drive detecting when head is parked on rampCALAWAY CHARLES J·Filed 2010·Granted Dec 6, 2011·111 cites·22 claims
- 1090US8737008B1Disk drive adjusting gain of spindle motor compensator based on a ratio of spin speedsWATANABE TAYLOR·Filed 2011·Granted May 27, 2014·96 cites·24 claims
- 1190US5602693AMethod and apparatus for sensing position in a disk driveMICROPOLIS S PTE LTD·Filed 1994·Granted Feb 11, 1997·62 cites·20 claims
- 1287US4831470AMethod and apparatus for recording disk servo information with detachable position decoderBRAND TECHNOLOGIES·Filed 1987·Granted May 16, 1989·38 cites·11 claims
- 1384US4910617ADisk drive head positioning servo system utilizing encoded track zone informationBRAND TECHNOLOGIES·Filed 1988·Granted Mar 20, 1990·34 cites·8 claims
- 1467US4207601ATransient temperature compensation for moving head disk drivePERTEC COMPUTER CORP·Filed 1978·Granted Jun 10, 1980·15 cites·8 claims
- 1558US9147428B1Disk drive with improved spin-up controlWESTERN DIGITAL TECH INC·Filed 2014·Granted Sep 29, 2015·0 cites·9 claims
- 1657US4939600AEfficient head positioner power amplifierMICROPOLIS CORP·Filed 1989·Granted Jul 3, 1990·11 cites·22 claims
- 1752US2014320998A1Disk drive with improved spin-up controlWESTERN DIGITAL TECH INC·Filed 2013·Application pending·0 cites
- 1849US4157507AElectronic system for detecting direction of motionPERTEC CORP·Filed 1978·Granted Jun 5, 1979·10 cites·3 claims
- 1942US2015380045A1Disk drive with improved spin-up controlWESTERN DIGITAL TECH INC·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Ashok K. Desai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →