Inventor · disambiguated record
Edward J. Yarmchuk
Also filed as: YARMCHUK EDWARD · YARMCHUK EDWARD J · YARMCHUK EDWARD JOHN
65 granted patents·1 pending application·1,855 citations·filing 1982–2019
99Inventor score
Files withIBM53HITACHI GLOBAL STORAGE TECH8GAYNES MICHAEL A2CHAINER TIMOTHY J1HITACHI GLOBAL TECH NL BV1
Top patents by PatentIndex Score
66 records- 0197US5612833ARadial self-propagation pattern generation for disk file servowritingIBM·Filed 1994·Granted Mar 18, 1997·100 cites·14 claims
- 0297US4931887ACapacitive measurement and control of the fly height of a recording sliderIBM·Filed 1988·Granted Jun 5, 1990·92 cites·41 claims
- 0396US6476989B1Radial self-propagation pattern generation for disk file servowritingIBM·Filed 1999·Granted Nov 5, 2002·117 cites·47 claims
- 0495US5659436ARadial self propagation pattern generation for disk file servowritingIBM·Filed 1995·Granted Aug 19, 1997·80 cites·15 claims
- 0595US5581420AMethod and system for determining a radial positioning valve used for writing tracks at a desired track pitchIBM·Filed 1994·Granted Dec 3, 1996·69 cites·46 claims
- 0694US5907447ARadial self-propagation pattern generation for disk file servowritingIBM·Filed 1997·Granted May 25, 1999·89 cites·16 claims
- 0793US5615058AMethod and system for writing a servo-pattern on a storage mediumIBM·Filed 1995·Granted Mar 25, 1997·77 cites·32 claims
- 0891US6633451B1Self-servo-writing timing pattern generation with non-overlapping read and write elementsHITACHI GLOBAL STORAGE TECH·Filed 1999·Granted Oct 14, 2003·62 cites·27 claims
- 0991US5434504APosition sensors for linear motors including plural symmetrical fluxes generated by a planar drive coil and received by planar sense coils being colinear along an axis of motionIBM·Filed 1993·Granted Jul 18, 1995·89 cites·31 claims
- 1090US8026730B2Process for measuring heat spreader tiltIBM·Filed 2010·Granted Sep 27, 2011·10 cites·10 claims
- 1190US6735031B2Method for storage of self-servowriting timing informationHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted May 11, 2004·30 cites·33 claims
- 1290US6411453B1Methods, apparatus and program products for determining off-track time shaft estimates to be used in writing timing patterns on a storage mediumIBM·Filed 1998·Granted Jun 25, 2002·49 cites·46 claims
- 1390US6344942B1Method and apparatus for absolute track spacing determination for self-servowritingIBM·Filed 1998·Granted Feb 5, 2002·62 cites·15 claims
- 1490US5991115AMethod and apparatus for determining separation between read and write elements of a transducerIBM·Filed 1998·Granted Nov 23, 1999·51 cites·10 claims
- 1590US5757574AMethods and systems for self-servowriting including maintaining a reference level within a usable dynamic rangeIBM·Filed 1996·Granted May 26, 1998·42 cites·56 claims
- 1689US6603627B1Creating an initial set of tracks in a self-servowriting system using a compliant crashstop to control head movementHITACHI GLOBAL STORAGE TECH·Filed 2000·Granted Aug 5, 2003·26 cites·26 claims
- 1789US6307697B1Method and apparatus for correcting for systematic errors in timing pattern generationIBM·Filed 2000·Granted Oct 23, 2001·23 cites·4 claims
- 1889US5485322AMethod and system for writing a clock track on a storage mediumIBM·Filed 1995·Granted Jan 16, 1996·67 cites·7 claims
- 1988US9786572B1Flip chip ball grid array with low impedance and grounded lidIBM·Filed 2016·Granted Oct 10, 2017·11 cites·44 claims
- 2088US6469859B1Method and system for accurate self-servowriting with normalization in a disk driveIBM·Filed 1998·Granted Oct 22, 2002·44 cites·26 claims
- 2188US5901003AMethod and apparatus for determining systematic errorsIBM·Filed 1996·Granted May 4, 1999·48 cites·22 claims
- 2288US5844742ARadial self-propagation pattern generation for disk file servowritingIBM·Filed 1996·Granted Dec 1, 1998·44 cites·20 claims
- 2387US7764069B2Process for measuring bond-line thicknessIBM·Filed 2007·Granted Jul 27, 2010·14 cites·12 claims
- 2487US6600621B1Techniques for multitrack positioning and controlling error growth in self-servowriting systemsHITACHI GLOBAL STORAGE TECH·Filed 2000·Granted Jul 29, 2003·23 cites·26 claims
- 2586US8589102B2Using in situ capacitance measurements to monitor the stability of interface materials in complex PCB assemblies and other structuresCHAINER TIMOTHY J·Filed 2011·Granted Nov 19, 2013·6 cites·15 claims
- 2685US6005738AMethods and systems for self-servo-writing including writing positioning and timing bursts at different track pitchesIBM·Filed 1998·Granted Dec 21, 1999·28 cites·5 claims
- 2785US5875064AMethod and system for accurate self-servowriting with normalization in a disk driveIBM·Filed 1996·Granted Feb 23, 1999·38 cites·26 claims
- 2883US8269340B2Curvilinear heat spreader/lid with improved heat dissipationGAYNES MICHAEL A·Filed 2007·Granted Sep 18, 2012·10 cites·13 claims
- 2980US5793554ASelf-servowriting system with dynamic error propagation reductionIBM·Filed 1996·Granted Aug 11, 1998·34 cites·52 claims
- 3079US6031680AMethods and systems for self-servowriting including maintaining a reference level within a usable dynamic rangeIBM·Filed 1998·Granted Feb 29, 2000·21 cites·5 claims
- 3179US5821759AMethod and apparatus for detecting shorts in a multi-layer electronic packageIBM·Filed 1997·Granted Oct 13, 1998·44 cites·31 claims
- 3278US6611395B1Rotating media recording system with adaptive track densityHITACHI GLOBAL STORAGE TECH·Filed 1999·Granted Aug 26, 2003·29 cites·38 claims
- 3376US6898035B1Method and apparatus for correcting for systematic errors in timing pattern generationHITACHI GLOBAL STORAGE TECH·Filed 2000·Granted May 24, 2005·9 cites·21 claims
- 3476US6242923B1Method for detecting power plane-to-power plane shorts and I/O net-to power plane shorts in modules and printed circuit boardsIBM·Filed 1998·Granted Jun 5, 2001·37 cites·29 claims
- 3575US6324027B1Method and apparatus for correcting for random errors in timing pattern generationIBM·Filed 1999·Granted Nov 27, 2001·20 cites·14 claims
- 3675US6259574B1Trigger pattern detection method and apparatusIBM·Filed 2000·Granted Jul 10, 2001·8 cites·10 claims
- 3774US10338024B2Using in situ capacitance measurements to monitor the stability of interface materials in complex PCB assemblies and other structuresIBM·Filed 2017·Granted Jul 2, 2019·1 cites·12 claims
- 3872US6101055ATrigger pattern detection method and apparatusIBM·Filed 1997·Granted Aug 8, 2000·19 cites·17 claims
- 3972US6078450AMethod and apparatus for correcting for random errors in timing pattern generationIBM·Filed 1997·Granted Jun 20, 2000·18 cites·16 claims
- 4072US4939599AMethod and apparatus for measuring dynamic track misregistrationIBM·Filed 1988·Granted Jul 3, 1990·17 cites·31 claims
- 4171US6301071B2Methods and systems for self-servowriting including maintaining a reference level within a usable dynamic rangeIBM·Filed 2001·Granted Oct 9, 2001·5 cites·5 claims
- 4269US6430001B1Integrated data storage disk and disk driveIBM·Filed 1995·Granted Aug 6, 2002·22 cites·21 claims
- 4369US4479980APlating rate monitorIBM·Filed 1983·Granted Oct 30, 1984·19 cites·14 claims
- 4468US7136243B2Method and apparatus for correcting for systematic errors in timing pattern generationHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Nov 14, 2006·5 cites·10 claims
- 4567US9714911B2Using in situ capacitance measurements to monitor the stability of interface materials in complex PCB assemblies and other structuresIBM·Filed 2013·Granted Jul 25, 2017·1 cites·9 claims
- 4665US6141093AMethod and apparatus for locating power plane shorts using polarized light microscopyIBM·Filed 1998·Granted Oct 31, 2000·31 cites·20 claims
- 4765US6101063AMethods and systems for self-servowriting including maintaining a reference level within a usable dynamic rangeIBM·Filed 1999·Granted Aug 8, 2000·11 cites·25 claims
- 4863US10908110B2Using in situ capacitance measurements to monitor the stability of interface materials in complex PCB assemblies and other structuresIBM·Filed 2019·Granted Feb 2, 2021·0 cites·5 claims
- 4962US8877566B2Curvilinear heat spreader/lid with improved heat dissipationGAYNES MICHAEL A·Filed 2012·Granted Nov 4, 2014·1 cites·12 claims
- 5062US6654196B2Avoiding write to read interference during self-servowritingHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Nov 25, 2003·4 cites·98 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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