Assignee
MICROPOLIS CORP
US·40 granted patents·2,259 citations·filing 1979–1996
Top patents by PatentIndex Score
40 records- 0198US5519435AMulti-user, on-demand video storage and retrieval system including video signature computation for preventing excessive instantaneous server data rateMICROPOLIS CORP·Filed 1994·Granted May 21, 1996·348 cites·21 claims
- 0298US5191584AMass storage array with efficient parity calculationMICROPOLIS CORP·Filed 1991·Granted Mar 2, 1993·186 cites·19 claims
- 0395US4797763ACompact magnetic head flexible suspensionMICROPOLIS CORP·Filed 1986·Granted Jan 10, 1989·87 cites·18 claims
- 0494US5793566ASelf securing compliant gasket for a disk drive assembly housingMICROPOLIS CORP·Filed 1996·Granted Aug 11, 1998·126 cites·13 claims
- 0594US5510939ADisk drive with adaptive positioningMICROPOLIS CORP·Filed 1992·Granted Apr 23, 1996·81 cites·5 claims
- 0693US4839754AWinchester disk drive motor circuitryMICROPOLIS CORP·Filed 1987·Granted Jun 13, 1989·72 cites·20 claims
- 0793US4796122AIntegral head positioner for hard disk storage systemMICROPOLIS CORP·Filed 1987·Granted Jan 3, 1989·58 cites·17 claims
- 0892US4947093AShock resistant winchester disk driveMICROPOLIS CORP·Filed 1988·Granted Aug 7, 1990·56 cites·21 claims
- 0991US5121273AComputer disk head interconnect assemblyMICROPOLIS CORP·Filed 1990·Granted Jun 9, 1992·66 cites·11 claims
- 1091US4870643AParallel drive array storage systemMICROPOLIS CORP·Filed 1987·Granted Sep 26, 1989·270 cites·32 claims
- 1190US4797762AStress free winchester drive shaft mountingMICROPOLIS CORP·Filed 1987·Granted Jan 10, 1989·45 cites·20 claims
- 1289US4717977AHigh capacity Winchester disk driveMICROPOLIS CORP·Filed 1986·Granted Jan 5, 1988·45 cites·18 claims
- 1389US4317146ACompact magnetic disk storage systemMICROPOLIS CORP·Filed 1979·Granted Feb 23, 1982·36 cites·16 claims
- 1487USRE34399EWinchester disk drive motor circuitryMICROPOLIS CORP·Filed 1992·Granted Oct 5, 1993·51 cites·20 claims
- 1587US4989108AElectro-mechanical latchMICROPOLIS CORP·Filed 1989·Granted Jan 29, 1991·35 cites·30 claims
- 1687US4967155AEnvironmentally controlled media defect detection system for Winchester disk drivesMICROPOLIS CORP·Filed 1988·Granted Oct 30, 1990·143 cites·9 claims
- 1787US4739427AHigh capacity hard disk constructionMICROPOLIS CORP·Filed 1987·Granted Apr 19, 1988·41 cites·14 claims
- 1886US5068755ASector pulse generator for hard disk drive assemblyMICROPOLIS CORP·Filed 1990·Granted Nov 26, 1991·61 cites·19 claims
- 1983US5233275ASimplified sensorless DC motor commutation control circuit using analog timing techniquesMICROPOLIS CORP·Filed 1991·Granted Aug 3, 1993·60 cites·5 claims
- 2082US4754353AHard disk head positioner assemblyMICROPOLIS CORP·Filed 1986·Granted Jun 28, 1988·38 cites·12 claims
- 2180US5268805ALow inertia Winchester disk drive actuatorMICROPOLIS CORP·Filed 1991·Granted Dec 7, 1993·40 cites·20 claims
- 2280US5246479ADrive motor controller for low power disk driveMICROPOLIS CORP·Filed 1991·Granted Sep 21, 1993·35 cites·20 claims
- 2377USD350944SExpandable modular disk drive arrayMICROPOLIS CORP·Filed 1993·Granted Sep 27, 1994·20 cites·1 claims
- 2473US4875117ADigital head positioner assemblyMICROPOLIS CORP·Filed 1988·Granted Oct 17, 1989·28 cites·19 claims
- 2571US4329604ALow loss brushless DC motorMICROPOLIS CORP·Filed 1979·Granted May 11, 1982·15 cites·16 claims
- 2670US5161073ALow power disk drive spindle motor controllerMICROPOLIS CORP·Filed 1990·Granted Nov 3, 1992·22 cites·20 claims
- 2769US5537264AMethod for optimally selecting media transfer rates for different data heads based on individual data head performanceMICROPOLIS CORP·Filed 1994·Granted Jul 16, 1996·25 cites·19 claims
- 2869US4949201ADisk drive head position controller with static bias compensation and plural velocity detectorsMICROPOLIS CORP·Filed 1988·Granted Aug 14, 1990·18 cites·22 claims
- 2967US5455726AVersatile head positioner stopMICROPOLIS CORP·Filed 1993·Granted Oct 3, 1995·22 cites·10 claims
- 3067US5162959AActuator lockMICROPOLIS CORP·Filed 1991·Granted Nov 10, 1992·21 cites·33 claims
- 3165US4796131AHead positioner preloaded stopMICROPOLIS CORP·Filed 1987·Granted Jan 3, 1989·14 cites·10 claims
- 3257US4939600AEfficient head positioner power amplifierMICROPOLIS CORP·Filed 1989·Granted Jul 3, 1990·11 cites·22 claims
- 3356US4803442ALow power buffer amplifierMICROPOLIS CORP·Filed 1987·Granted Feb 7, 1989·11 cites·23 claims
- 3453US5414577AMagnetically coupled hard disk drive head positioner latchMICROPOLIS CORP·Filed 1993·Granted May 9, 1995·10 cites·16 claims
- 3551US5404258AHard disk drive precision head positioner having a self-aligning head positioner/magnetic coil bobbin interfaceMICROPOLIS CORP·Filed 1993·Granted Apr 4, 1995·9 cites·2 claims
- 3651US4261019ACompatible digital magnetic recording systemMICROPOLIS CORP·Filed 1979·Granted Apr 7, 1981·9 cites·14 claims
- 3749US5523899AMethod and apparatus for thermal calibration of hard disk driveMICROPOLIS CORP·Filed 1995·Granted Jun 4, 1996·11 cites·17 claims
- 3848US4829391AHigh speed integrated charge pump circuit for phase lock loopsMICROPOLIS CORP·Filed 1987·Granted May 9, 1989·13 cites·9 claims
- 3942US5805919AMethod and system for interleaving the distribution of data segments from different logical volumes on a single physical driveMICROPOLIS CORP·Filed 1995·Granted Sep 8, 1998·15 cites·7 claims
- 4024US5249086AH.D.A. pulse shaping system using a differential delay line with multiple inputsMICROPOLIS CORP·Filed 1992·Granted Sep 28, 1993·5 cites·13 claims
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