Assignee
PHASE METRICS INC
US·25 granted patents·706 citations·filing 1995–1999
Top patents by PatentIndex Score
25 records- 0188US5875029AApparatus and method for surface inspection by specular interferometric and diffuse light detectionPHASE METRICS INC·Filed 1997·Granted Feb 23, 1999·115 cites·14 claims
- 0286US5793480ACombined interferometer/ellipsometer for measuring small spacingsPHASE METRICS INC·Filed 1996·Granted Aug 11, 1998·81 cites·10 claims
- 0385US5903085APiezoelectric nanopositionerPHASE METRICS INC·Filed 1997·Granted May 11, 1999·60 cites·6 claims
- 0478US5658191ABurnish head for magnetic mediaPHASE METRICS INC·Filed 1995·Granted Aug 19, 1997·33 cites·4 claims
- 0576US6140661ALoader with a matching finger that loads a head gimbal assembly onto a diskPHASE METRICS INC·Filed 1998·Granted Oct 31, 2000·33 cites·14 claims
- 0675US5818592ANon-contact optical glide testerPHASE METRICS INC·Filed 1997·Granted Oct 6, 1998·46 cites·29 claims
- 0774US6088092AGlass substrate inspection apparatusPHASE METRICS INC·Filed 1999·Granted Jul 11, 2000·54 cites·11 claims
- 0871US5781649ASurface inspection of a disk by diffraction pattern samplingPHASE METRICS INC·Filed 1996·Granted Jul 14, 1998·39 cites·10 claims
- 0967US5841318ALow noise preamplifier for a magneto-resistive head testerPHASE METRICS INC·Filed 1997·Granted Nov 24, 1998·24 cites·14 claims
- 1067US5661559AOptical surface detection for magnetic disksPHASE METRICS INC·Filed 1996·Granted Aug 26, 1997·31 cites·28 claims
- 1166US5957588AAir bearing for a spindlePHASE METRICS INC·Filed 1997·Granted Sep 28, 1999·19 cites·8 claims
- 1262US5986451ALow z-height loader for a head gimbal assemblyPHASE METRICS INC·Filed 1996·Granted Nov 16, 1999·25 cites·40 claims
- 1362US5894374AMethod and apparatus for providing a clock assemblyPHASE METRICS INC·Filed 1996·Granted Apr 13, 1999·19 cites·13 claims
- 1458US5673110AMultiplexed laser interferometer for non-dispersed spectrum detection in a dynamic flying height testerPHASE METRICS INC·Filed 1996·Granted Sep 30, 1997·28 cites·5 claims
- 1557US5805284AOptically verified glidePHASE METRICS INC·Filed 1997·Granted Sep 8, 1998·12 cites·18 claims
- 1656US5821746AApparatus for testing multiple magnetic recording headsPHASE METRICS INC·Filed 1997·Granted Oct 13, 1998·20 cites·6 claims
- 1752US5838510AMethod and apparatus for the measurement of defects in magnetic recording disks using a logarithmic amplifierPHASE METRICS INC·Filed 1996·Granted Nov 17, 1998·10 cites·20 claims
- 1850US5872664ADistortion of an isolated pulsePHASE METRICS INC·Filed 1996·Granted Feb 16, 1999·9 cites·24 claims
- 1948US5838153AMagnetic media tester which includes a filter that filters the product of a read signal and an output of a phase lock loop circuitPHASE METRICS INC·Filed 1996·Granted Nov 17, 1998·13 cites·14 claims
- 2047US5808736AThin film flying height calibration disk for calibrating flying height testersPHASE METRICS INC·Filed 1996·Granted Sep 15, 1998·7 cites·19 claims
- 2145US5893699AEnd effector for a robotic arm of a disk certifierPHASE METRICS INC·Filed 1996·Granted Apr 13, 1999·7 cites·14 claims
- 2242US6184993B1Apparatus for measuring a small gap using a Savart platePHASE METRICS INC·Filed 1999·Granted Feb 6, 2001·5 cites·20 claims
- 2340US6184992B1Apparatus and method for measuring flying height and a real index of refractionPHASE METRICS INC·Filed 1999·Granted Feb 6, 2001·8 cites·10 claims
- 2431US5845401ACrash tolerant air bearing spindlePHASE METRICS INC·Filed 1997·Granted Dec 8, 1998·4 cites·6 claims
- 2529US5927934AEnd effector for a robotic arm of a disk certifierPHASE METRICS INC·Filed 1998·Granted Jul 27, 1999·4 cites·7 claims
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