Assignee
HMT TECHNOLOGY CORP
US·54 granted patents·2,039 citations·filing 1989–1999
Top patents by PatentIndex Score
54 records- 0197US5166006ATextured thin-film substrate and methodHMT TECHNOLOGY CORP·Filed 1991·Granted Nov 24, 1992·72 cites·17 claims
- 0294US5567512AThin carbon overcoat and method of its makingHMT TECHNOLOGY CORP·Filed 1993·Granted Oct 22, 1996·71 cites·5 claims
- 0393US5679431ASputtered carbon overcoat in a thin-film medium and sputtering methodHMT TECHNOLOGY CORP·Filed 1994·Granted Oct 21, 1997·55 cites·12 claims
- 0492US6358636B1Thin overlayer for magnetic recording diskHMT TECHNOLOGY CORP·Filed 1999·Granted Mar 19, 2002·89 cites·8 claims
- 0592US6146737AMagnetic recording medium having a nitrogen-containing barrier layerHMT TECHNOLOGY CORP·Filed 1998·Granted Nov 14, 2000·79 cites·18 claims
- 0689US5580667AMultilayered medium with gradient isolation layerHMT TECHNOLOGY CORP·Filed 1993·Granted Dec 3, 1996·47 cites·11 claims
- 0789US5227211AMagnetic recording disk medium comprising a magnetic thin film and a carbon overcoat having surface nitrogen atoms, a specified carbon structure, and oxygen atomsHMT TECHNOLOGY CORP·Filed 1991·Granted Jul 13, 1993·75 cites·8 claims
- 0888US6274063B1Metal polishing compositionHMT TECHNOLOGY CORP·Filed 1999·Granted Aug 14, 2001·98 cites·17 claims
- 0988US5456978AThin-film recording medium with thin metal sublayerHMT TECHNOLOGY CORP·Filed 1993·Granted Oct 10, 1995·42 cites·8 claims
- 1087US5012618AMagnetic disc surface treatment and apparatusHMT TECHNOLOGY CORP·Filed 1989·Granted May 7, 1991·43 cites·3 claims
- 1186US5587217ALubricant composition and methodHMT TECHNOLOGY CORP·Filed 1995·Granted Dec 24, 1996·54 cites·9 claims
- 1285US6303217B1Longitudinal recording medium with a dual underlayerHMT TECHNOLOGY CORP·Filed 1998·Granted Oct 16, 2001·84 cites·21 claims
- 1384US6210819B1Magnetic recording media having a CrTi underlayer deposited under a substrate biasHMT TECHNOLOGY CORP·Filed 1998·Granted Apr 3, 2001·77 cites·15 claims
- 1484US5922442AMagnetic recording medium having a CoCr alloy interlayer of a low saturation magnetizationHMT TECHNOLOGY CORP·Filed 1997·Granted Jul 13, 1999·36 cites·18 claims
- 1584US5693197ADC magnetron sputtering method and apparatusHMT TECHNOLOGY CORP·Filed 1994·Granted Dec 2, 1997·33 cites·4 claims
- 1683US6063248AProcess chamber isolation system in a deposition apparatusHMT TECHNOLOGY CORP·Filed 1998·Granted May 16, 2000·80 cites·10 claims
- 1783US5685959ACathode assembly having rotating magnetic-field shunt and method of making magnetic recording mediaHMT TECHNOLOGY CORP·Filed 1996·Granted Nov 11, 1997·61 cites·18 claims
- 1882US5520981AMagnetic recording disk with overcoat thickness gradient between a data zone and a landing zoneHMT TECHNOLOGY CORP·Filed 1995·Granted May 28, 1996·39 cites·9 claims
- 1981US5614071ASputtering shieldHMT TECHNOLOGY CORP·Filed 1995·Granted Mar 25, 1997·55 cites·8 claims
- 2081US5356522AMethod for manufacturing thin-film medium with chromium underlayer gradientHMT TECHNOLOGY CORP·Filed 1992·Granted Oct 18, 1994·38 cites·6 claims
- 2181US5174880AMagnetron sputter gun target assembly with distributed magnetic fieldHMT TECHNOLOGY CORP·Filed 1991·Granted Dec 29, 1992·38 cites·4 claims
- 2280US5978091ALaser-bump sensor method and apparatusHMT TECHNOLOGY CORP·Filed 1998·Granted Nov 2, 1999·37 cites·20 claims
- 2380US5543022ADisc-handling apparatusHMT TECHNOLOGY CORP·Filed 1995·Granted Aug 6, 1996·34 cites·19 claims
- 2480US5512150ATarget assembly having inner and outer targetsHMT TECHNOLOGY CORP·Filed 1995·Granted Apr 30, 1996·54 cites·17 claims
- 2580US5004652AHigh-coercivity thin-film recording medium and methodHMT TECHNOLOGY CORP·Filed 1990·Granted Apr 2, 1991·27 cites·10 claims
- 2679US5167096AMethod for texturing a magnetic disc substrateHMT TECHNOLOGY CORP·Filed 1990·Granted Dec 1, 1992·36 cites·8 claims
- 2779US5049451AHigh-coercivity thin-film recording mediumHMT TECHNOLOGY CORP·Filed 1990·Granted Sep 17, 1991·26 cites·11 claims
- 2878US5938902ADisc-handling apparatusHMT TECHNOLOGY CORP·Filed 1996·Granted Aug 17, 1999·46 cites·17 claims
- 2978US5508077ATextured disc substrate and methodHMT TECHNOLOGY CORP·Filed 1993·Granted Apr 16, 1996·33 cites·4 claims
- 3077US5074983AThin film testing methodHMT TECHNOLOGY CORP·Filed 1989·Granted Dec 24, 1991·37 cites·20 claims
- 3177US5037515AMethod for making smooth-surfaced magnetic recording mediumHMT TECHNOLOGY CORP·Filed 1989·Granted Aug 6, 1991·25 cites·8 claims
- 3276US5324593AThin film medium with layered film gradientHMT TECHNOLOGY CORP·Filed 1992·Granted Jun 28, 1994·28 cites·5 claims
- 3374US5569533AThin-film medium with sublayerHMT TECHNOLOGY CORP·Filed 1994·Granted Oct 29, 1996·21 cites·12 claims
- 3472US5964651AApparatus for polishing planar substrates through rotating platesHMT TECHNOLOGY CORP·Filed 1997·Granted Oct 12, 1999·40 cites·14 claims
- 3571US5693199ASingle chamber sputtering assemblyHMT TECHNOLOGY CORP·Filed 1996·Granted Dec 2, 1997·23 cites·6 claims
- 3671US5432012AThin-film medium with compositional gradientHMT TECHNOLOGY CORP·Filed 1992·Granted Jul 11, 1995·33 cites·5 claims
- 3769US5834111AMultilayered magnetic recording medium with coercivity gradientHMT TECHNOLOGY CORP·Filed 1994·Granted Nov 10, 1998·25 cites·5 claims
- 3869US5738945AMultilayer magnetic medium with soft magnetic interlayerHMT TECHNOLOGY CORP·Filed 1993·Granted Apr 14, 1998·25 cites·7 claims
- 3969US5057200AMethod of forming thin-film recording mediumHMT TECHNOLOGY CORP·Filed 1991·Granted Oct 15, 1991·17 cites·6 claims
- 4068US5849386AMagnetic recording medium having a prelayerHMT TECHNOLOGY CORP·Filed 1997·Granted Dec 15, 1998·19 cites·20 claims
- 4167US5366607ASputtering target and assemblyHMT TECHNOLOGY CORP·Filed 1992·Granted Nov 22, 1994·19 cites·8 claims
- 4266US5119258AMagnetic disc with low-friction glass substrateHMT TECHNOLOGY CORP·Filed 1990·Granted Jun 2, 1992·31 cites·4 claims
- 4364US6007924AMagnetic recording medium having a multilayer magnetic recording structure including a 10-30 angstrom CoCr interlayerHMT TECHNOLOGY CORP·Filed 1997·Granted Dec 28, 1999·24 cites·16 claims
- 4464US5714044AMethod for forming a thin carbon overcoat in a magnetic recording mediumHMT TECHNOLOGY CORP·Filed 1995·Granted Feb 3, 1998·17 cites·8 claims
- 4559US5576085AThin-film recording medium with soft magnetic layerHMT TECHNOLOGY CORP·Filed 1993·Granted Nov 19, 1996·19 cites·4 claims
- 4659US5207759ATexturing slurry and methodHMT TECHNOLOGY CORP·Filed 1991·Granted May 4, 1993·18 cites·3 claims
- 4756US5897798ALaser texturing apparatus employing a rotating mirrorHMT TECHNOLOGY CORP·Filed 1997·Granted Apr 27, 1999·16 cites·12 claims
- 4853US5736020ATarget assembly for use in forming an overcoat in a magnetic recording mediumHMT TECHNOLOGY CORP·Filed 1995·Granted Apr 7, 1998·11 cites·4 claims
- 4944US5834731ALaser texturing apparatus with bernoulli holderHMT TECHNOLOGY CORP·Filed 1997·Granted Nov 10, 1998·10 cites·3 claims
- 5042US5810648ADevice for texturing a disc substrateHMT TECHNOLOGY CORP·Filed 1997·Granted Sep 22, 1998·11 cites·20 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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