Assignee
PHASE METRICS
US·30 granted patents·878 citations·filing 1991–1997
Top patents by PatentIndex Score
30 records- 0190US5668470AAutomatic testing system for magnetoresistive headsPHASE METRICS·Filed 1996·Granted Sep 16, 1997·70 cites·11 claims
- 0290US5517111AAutomatic testing system for magnetoresistive headsPHASE METRICS·Filed 1995·Granted May 14, 1996·73 cites·20 claims
- 0390US5280340AMethod and apparatus to calibrate intensity and determine fringe order for interferometric measurement of small spacingsPHASE METRICS·Filed 1991·Granted Jan 18, 1994·63 cites·30 claims
- 0489US5777740ACombined interferometer/polarimeterPHASE METRICS·Filed 1997·Granted Jul 7, 1998·83 cites·14 claims
- 0585US5883714AMethod and apparatus for detecting defects on a disk using interferometric analysis on reflected lightPHASE METRICS·Filed 1996·Granted Mar 16, 1999·81 cites·24 claims
- 0682US5719840AOptical sensor with an elliptical illumination spotPHASE METRICS·Filed 1996·Granted Feb 17, 1998·39 cites·11 claims
- 0780US5486924AMethod and apparatus for measurement of roughness and hardness of a surfacePHASE METRICS·Filed 1993·Granted Jan 23, 1996·32 cites·9 claims
- 0878US5771130AMethod and apparatus for non-contact servo writingPHASE METRICS·Filed 1996·Granted Jun 23, 1998·31 cites·37 claims
- 0977US5696445AMethod and apparatus for testing the resistive properties of magneto resistive materials using a time variable magnetic fieldPHASE METRICS·Filed 1994·Granted Dec 9, 1997·40 cites·27 claims
- 1077US5457534AMethod and apparatus to calibrate intensity and determine fringe order for interferometric measurement of small spacingsPHASE METRICS·Filed 1993·Granted Oct 10, 1995·28 cites·10 claims
- 1175US5792947AMethod and apparatus for combined glide and defect analysisPHASE METRICS·Filed 1996·Granted Aug 11, 1998·40 cites·34 claims
- 1275US5644564AVacuum chuck for rotating data discsPHASE METRICS·Filed 1995·Granted Jul 1, 1997·32 cites·6 claims
- 1373US5786677AStops and a clutch for a loader that test the flying height of a disk drive head gimbal assemblyPHASE METRICS·Filed 1995·Granted Jul 28, 1998·34 cites·17 claims
- 1472US5706080ASingle test station that can test a flying height and electrical characteristics of a recording headPHASE METRICS·Filed 1996·Granted Jan 6, 1998·28 cites·7 claims
- 1568US5696653ATooling for holding a head gimbal assemblyPHASE METRICS·Filed 1996·Granted Dec 9, 1997·19 cites·9 claims
- 1667US5781299ADetermining the complex refractive index phase offset in interferometric flying height testingPHASE METRICS·Filed 1996·Granted Jul 14, 1998·21 cites·34 claims
- 1759US5783882AConductive contact for an air bearing spindlePHASE METRICS·Filed 1996·Granted Jul 21, 1998·14 cites·11 claims
- 1858US5801464APressurized air-ionization ground for an air bearing spindlePHASE METRICS·Filed 1996·Granted Sep 1, 1998·22 cites·9 claims
- 1958US5675082AGoniometer loader for testing the height of a disk drive head gimbal assemblyPHASE METRICS·Filed 1995·Granted Oct 7, 1997·26 cites·17 claims
- 2056US5760989AMethod and apparatus for captive clock head assemblyPHASE METRICS·Filed 1996·Granted Jun 2, 1998·13 cites·10 claims
- 2155US5692840ACrash tolerant air bearing spindlePHASE METRICS·Filed 1996·Granted Dec 2, 1997·16 cites·8 claims
- 2253US5671048AMethod and apparatus for rotary load/unload slider positioningPHASE METRICS·Filed 1995·Granted Sep 23, 1997·8 cites·16 claims
- 2351US5771139AIntegrated spring head/gimbal assembly holderPHASE METRICS·Filed 1995·Granted Jun 23, 1998·11 cites·23 claims
- 2449US5638178AImaging polarimeter detector for measurement of small spacingsPHASE METRICS·Filed 1995·Granted Jun 10, 1997·12 cites·28 claims
- 2548US5696585AApparatus and method for efficient electrostatic discharge on glass disks in flying height testersPHASE METRICS·Filed 1996·Granted Dec 9, 1997·8 cites·17 claims
- 2643US5767964ASlider for calibration and correlation of flying height testersPHASE METRICS·Filed 1997·Granted Jun 16, 1998·7 cites·10 claims
- 2743US5689329AFlying height altitude simulatorPHASE METRICS·Filed 1996·Granted Nov 18, 1997·6 cites·18 claims
- 2842US5818658AVariable pneumatic loader for testing a disk drive head gimbal assemblyPHASE METRICS·Filed 1997·Granted Oct 6, 1998·9 cites·11 claims
- 2937US5699204AMethod and apparatus for the coherent demodulation of an amplified modulated carrier using a dual track and hold amplifier and the application of said method and apparatus to measurement of magnetic media performancePHASE METRICS·Filed 1995·Granted Dec 16, 1997·3 cites·19 claims
- 3036US5764545ADisk drive test sequence editorPHASE METRICS·Filed 1996·Granted Jun 9, 1998·9 cites·23 claims
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