Inventor · disambiguated record
Donald Ray Gillis
Also filed as: GILLIS DONALD · GILLIS DONALD R · GILLIS DONALD RAY
80 granted patents·10 pending applications·1,127 citations·filing 1994–2011
99Inventor score
Files withHITACHI GLOBAL STORAGE TECH48IBM21FELISS NORBERT A9HITACHI GLOBAL STORAGE TECH NL6HITACHI GLOBAL SOTRAGE TECHNOLOGIES NETHERLANDS B V1
Top patents by PatentIndex Score
90 records- 0194US6618221B2System and method for utilizing an actuator-activated pumping mechanism for reducing the operating pressure of a disk drive assemblyIBM·Filed 2001·Granted Sep 9, 2003·47 cites·15 claims
- 0293US6069769AAir bearing slider having rounded cornersIBM·Filed 1997·Granted May 30, 2000·75 cites·25 claims
- 0392US6265846B1Active bypass circuit for extending energy capacity and operational life of a multi-cell batteryIBM·Filed 2000·Granted Jul 24, 2001·112 cites·19 claims
- 0489US7164549B2Load/unload system and method for maximizing disk writeable areaHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jan 16, 2007·7 cites·20 claims
- 0589US6266199B1Method of apparatus to characterize and limit the effect of disk damage in a hard disk driveIBM·Filed 1999·Granted Jul 24, 2001·63 cites·2 claims
- 0689US5661618AMagnetic recording device having a improved sliderIBM·Filed 1995·Granted Aug 26, 1997·60 cites·16 claims
- 0787US7119979B2Measurement of slider clearance by inducing collision of the slider with disk surfaceHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Oct 10, 2006·21 cites·14 claims
- 0887US5872686AMagnetic storage system having an improved slider having rounded corners to minimize disk damageIBM·Filed 1997·Granted Feb 16, 1999·49 cites·22 claims
- 0986US6937419B2Method and apparatus for recovering load/unload zone real estate on data storage media in data storage devices to increase a data storage capacity thereofHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Aug 30, 2005·20 cites·22 claims
- 1086US6822819B1Methods and apparatus for thermally bonding lubricant to a disk surface with use of a heating element formed in a magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Nov 23, 2004·19 cites·33 claims
- 1186US5539592ASystem and method for monitoring friction between head and disk to predict head disk interaction failure in direct access storage devicesIBM·Filed 1994·Granted Jul 23, 1996·46 cites·16 claims
- 1285US6700726B1Method for controlling air pressure in an evacuated disk driveHITACHI GLOBAL STORAGES TECHNO·Filed 2000·Granted Mar 2, 2004·25 cites·11 claims
- 1385US5959801AStiction reduction in disk drives using heatingIBM·Filed 1997·Granted Sep 28, 1999·49 cites·19 claims
- 1484US8085488B2Predicting operational problems in a hard-disk drive (HDD)FELISS NORBERT A·Filed 2009·Granted Dec 27, 2011·6 cites·22 claims
- 1584US7298575B2Load/unload systems and methods for maximizing disk writeable areaHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Nov 20, 2007·4 cites·19 claims
- 1684US5827424AContaminant reduction system for disk drivesIBM·Filed 1996·Granted Oct 27, 1998·65 cites·7 claims
- 1781US7345850B2Method and apparatus for utilizing an off-center gimbal to increase head to disk interface reliability for contact recording systemsHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 18, 2008·4 cites·22 claims
- 1881US6603628B1In-situ pressure sensor based on read head resistanceIBM·Filed 2000·Granted Aug 5, 2003·15 cites·14 claims
- 1979US7146710B2Two stage lubrication process for disk driveHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Dec 12, 2006·12 cites·27 claims
- 2079US7094129B2Magnetic recording head burnishing methodHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Aug 22, 2006·3 cites·16 claims
- 2179US6580585B2Magnetic disk drive with load/unload structure having lubricant reservoirHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Jun 17, 2003·13 cites·8 claims
- 2279US6359433B1Method and apparatus for preventing data loss in disk drives using predictive failure analysis of magnetoresistive head resistanceIBM·Filed 1999·Granted Mar 19, 2002·59 cites·45 claims
- 2379US6084753AMethod and apparatus for removing debris from a slider in a disk drive using load/unload technologyIBM·Filed 1997·Granted Jul 4, 2000·32 cites·5 claims
- 2478US7251096B1Shock induced cleaning for hard disk drivesHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 31, 2007·3 cites·20 claims
- 2577US6958876B2Leak detection system of hard disk drives with lubricant reservoirHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Oct 25, 2005·11 cites·38 claims
- 2677US6900957B2Lubricant depletion detection in a self-healing disk driveHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted May 31, 2005·11 cites·18 claims
- 2776US7990650B2Reducing the obstruction of air flow through a bypass channel associated with a disk drive using an electrostatic pass-by filterHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Aug 2, 2011·2 cites·7 claims
- 2876US6914739B2Closed loop lubrication system for moving magnetic mediaHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Jul 5, 2005·11 cites·24 claims
- 2975US8174782B2Methods for depositing lubricant onto disks and systems thereofFELISS NORBERT A·Filed 2008·Granted May 8, 2012·2 cites·25 claims
- 3075US7817371B2Active compensation of flying height in magnetic disk drivesHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Oct 19, 2010·2 cites·25 claims
- 3175US7192398B2Hard disk drive medical monitor with GPSHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Mar 20, 2007·15 cites·2 claims
- 3274US7907062B2Dual direction power and data transfer protocol and safety detectionHITACHI GLOBAL SOTRAGE TECHNOLOGIES NETHERLANDS B V·Filed 2008·Granted Mar 15, 2011·12 cites·33 claims
- 3374US6678113B2Device and method for monitoring lubricant within a disk driveHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Jan 13, 2004·9 cites·24 claims
- 3473US7345845B2Fluid damping structure for hard disk drives and vibration sensitive electronic devicesHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Mar 18, 2008·9 cites·12 claims
- 3572US6778360B2Electrostatic discharge device in a disk drive providing a conductive path between a slider and the disk drive housing thereby protecting against electrostatic dischargeHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Aug 17, 2004·8 cites·14 claims
- 3672US6680811B2System and method for enhancing load/unload performance of low-flying heads in a disk driveIBM·Filed 2001·Granted Jan 20, 2004·8 cites·12 claims
- 3772US6560074B2Offset limiter for reducing potential of disk damage during unload sequence in load/unload disk driveIBM·Filed 2001·Granted May 6, 2003·8 cites·8 claims
- 3871US7201719B2Rechargeable hard disk drive medical monitorHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Apr 10, 2007·12 cites·15 claims
- 3970US7196869B2Plastic spacer and disk clamp assemblyHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Mar 27, 2007·6 cites·29 claims
- 4070US6954327B2Methods and apparatus for thermally bonding lubricant to a disk surface with use of a heat source in a magnetic headHITACHI GLOBAL STORAGE TECH NL·Filed 2003·Granted Oct 11, 2005·7 cites·29 claims
- 4170US6246534B1Hard disk drive with lube on demand actuatorsIBM·Filed 1998·Granted Jun 12, 2001·21 cites·17 claims
- 4269US7538973B2Method and apparatus for providing a fluid damping structure with fuel cell for a hard disk drive and vibration sensitive electronic devicesHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted May 26, 2009·1 cites·20 claims
- 4369US6934101B2Method and apparatus using reverse disk rotation to achieve slider contact with a disk surfaceHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Aug 23, 2005·7 cites·24 claims
- 4469US6683743B2Method for controlling the velocity of an actuator arm in a hard disk driveHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Jan 27, 2004·7 cites·19 claims
- 4568US8134795B2Using an atmospheric pressure sensor in a hard-disk drive (HDD)FELISS NORBERT A·Filed 2009·Granted Mar 13, 2012·1 cites·18 claims
- 4668US6459550B1Active damping control for a disk driveIBM·Filed 2000·Granted Oct 1, 2002·6 cites·30 claims
- 4766US6407880B1Environmental corrosion protection for hard disk drive elements by thermal activationIBM·Filed 2000·Granted Jun 18, 2002·6 cites·26 claims
- 4864US7225031B2Hard disk drive medical monitor with security encryptionHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted May 29, 2007·27 cites·8 claims
- 4964US6501624B1Multiple zone data storage system and methodIBM·Filed 1997·Granted Dec 31, 2002·14 cites·12 claims
- 5063US7154698B2Load/unload system and method for maximizing disk writeable areaHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Dec 26, 2006·3 cites·31 claims
Showing the top 50 of 90 patent records by PatentIndex Score.
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