Inventor · disambiguated record
Yugang Wang
Also filed as: WANG YUGANG
53 granted patents·6 pending applications·6,615 citations·filing 1997–2025
99Inventor score
Files withWESTERN DIGITAL FREMONT LLC18WESTERN DIGITAL FREMONT INC12READ RITE CORP7LIU FENG6XIAMEN HITHIUM ENERGY STORAGE TECH CO LTD3
Top patents by PatentIndex Score
59 records- 0199US8537495B1Magnetic writer having a split yokeWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Sep 17, 2013·153 cites·16 claims
- 0299US8373945B1Magnetic writer having a split yokeWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Feb 12, 2013·150 cites·20 claims
- 0399US8179636B1Method and system for providing a perpendicular magnetic recording writerBAI ZHIGANG·Filed 2008·Granted May 15, 2012·162 cites·24 claims
- 0499US7869160B1Perpendicular recording head with shaped pole surfaces for higher linear data densitiesWESTERN DIGITAL FREMONT LLC·Filed 2005·Granted Jan 11, 2011·179 cites·16 claims
- 0599US7688546B1Perpendicular magnetic recording head having nonmagnetic insertion layersWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Mar 30, 2010·150 cites·27 claims
- 0699US7443632B1Magnetic head with stitched top pole layer and single layer coil or solenoidal coilWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Oct 28, 2008·163 cites·8 claims
- 0799US7375926B1Inductive writer design using a soft magnetic pedestal having a high magnetic saturation layerWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted May 20, 2008·151 cites·16 claims
- 0899US7337530B1Method for manufacturing a shielded pole magnetic head for perpendicular recordingWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Mar 4, 2008·176 cites·14 claims
- 0999US7310204B1Inductive writer design for using a soft magnetic pedestal having a high magnetic saturation layerWESTERN DIGITAL FREMONT LLC·Filed 2003·Granted Dec 18, 2007·171 cites·16 claims
- 1099US7248433B1Magnetic head with stitched top pole layer and single layer coil or solenoidal coilWESTERN DIGITAL FREMONT INC·Filed 2004·Granted Jul 24, 2007·166 cites·19 claims
- 1199US7193815B1Shielded pole magnetic head for perpendicular recordingWESTERN DIGITAL FREMONT INC·Filed 2004·Granted Mar 20, 2007·183 cites·25 claims
- 1299US7126788B1Trailing edge recording magnetic head with reversed double bias coil and deflection pole for perpendicular recording with a non-perpendicular write fieldWESTERN DIGITAL FREMONT INC·Filed 2003·Granted Oct 24, 2006·182 cites·35 claims
- 1399US6912106B1Writer with a hot seed zero throat and substantially flat top poleWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Jun 28, 2005·182 cites·24 claims
- 1499US6809899B1Magnetic heads for perpendicular recording with trapezoidal pole tipsWESTERN DIGITAL FREMONT INC·Filed 2003·Granted Oct 26, 2004·266 cites·25 claims
- 1598US8724259B1Conformal high moment side shield seed layer for perpendicular magnetic recording writerLIU FENG·Filed 2012·Granted May 13, 2014·168 cites·3 claims
- 1698US8582238B1Systems and methods for providing perpendicular magnetic writers having gradient magnetic moment side shieldsLIU FENG·Filed 2011·Granted Nov 12, 2013·175 cites·27 claims
- 1798US8520337B1Perpendicular magnetic recording writer pole with leading and trailing bevel side wall angles at air bearing surfaceLIU FENG·Filed 2012·Granted Aug 27, 2013·153 cites·12 claims
- 1898US8520336B1Magnetic recording head with nano scale pole tip bulgeLIU FENG·Filed 2011·Granted Aug 27, 2013·157 cites·22 claims
- 1998US8310901B1Method and system for providing separate write and optical modules in an energy assisted magnetic recording disk driveBATRA SHARAT·Filed 2010·Granted Nov 13, 2012·162 cites·34 claims
- 2098US8279719B1Method and system for coupling a laser with a slider in an energy assisted magnetic recording disk driveHU YUFENG·Filed 2009·Granted Oct 2, 2012·156 cites·19 claims
- 2198US7660080B1Read/write head with dynamic flying height control by magnetostrictionWESTERN DIGITAL FREMONT LLC·Filed 2004·Granted Feb 9, 2010·165 cites·57 claims
- 2298US7126790B1Magnetic head for perpendicular recording with magnetic loop providing non-perpendicular write fieldWESTERN DIGITAL FREMONT INC·Filed 2003·Granted Oct 24, 2006·168 cites·37 claims
- 2398US7113366B1Double-nosed inductive transducer with reduced off-track writingWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Sep 26, 2006·156 cites·6 claims
- 2498US6906894B2Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the sameWESTERN DIGITAL FREMONT INC·Filed 2004·Granted Jun 14, 2005·166 cites·19 claims
- 2598US6791793B1Perpendicular recording write head having a recessed magnetic adjunct pole and method of making the sameWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Sep 14, 2004·193 cites·20 claims
- 2698US6754049B1Transducers for perpendicular recording with inductive cancellation at MR sensorWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Jun 22, 2004·181 cites·20 claims
- 2798US6724572B1Inductive transducer with recessed leading pole layerWESTERN DIGITAL INC·Filed 2002·Granted Apr 20, 2004·209 cites·24 claims
- 2898US6721138B1Inductive transducer with stitched pole tip and pedestal defining zero throat heightWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Apr 13, 2004·187 cites·18 claims
- 2998US6404706B1Laser mounting for a thermally assisted GMR headREAD RITE CORP·Filed 1999·Granted Jun 11, 2002·249 cites·24 claims
- 3097US8792208B1Method for providing side shields having non-conformal regions for a magnetic recording transducerLIU FENG·Filed 2012·Granted Jul 29, 2014·151 cites·16 claims
- 3197US8705205B1Magnetic recording head having a dual sidewall angleLI YUNFEI·Filed 2011·Granted Apr 22, 2014·152 cites·17 claims
- 3297US8537494B1PMR head with an angled stitch layerPAN TAO·Filed 2007·Granted Sep 17, 2013·157 cites·27 claims
- 3396US8405930B1Method and system for providing a transducer having dual, ABS recessed auxiliary poles on opposite sides of a main pole with non-magnetic spacer adjoining back portion of main pole and positioned between auxiliary polesLI ZHANJIE·Filed 2011·Granted Mar 26, 2013·171 cites·16 claims
- 3496US8164855B1Method and system for providing a write pole in an energy assisted magnetic recording disk driveGIBBONS MATTHEW R·Filed 2009·Granted Apr 24, 2012·189 cites·28 claims
- 3596US6229782B1High numerical aperture optical focusing device for use in data storage systemsREAD RITE CORP·Filed 1998·Granted May 8, 2001·171 cites·27 claims
- 3695US7116517B1Stitched pole write element with a T-shaped pole tip portionWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Oct 3, 2006·161 cites·19 claims
- 3795US6377535B1High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systemsREAD RITE CORP·Filed 1998·Granted Apr 23, 2002·203 cites·38 claims
- 3891US9082423B1Magnetic recording write transducer having an improved trailing surface profileWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Jul 14, 2015·14 cites·21 claims
- 3990US12285889B1Preparation method of glove having soft coating with high wear resistance and high anti-slip performanceJIANGSU HANVO SAFETY PRODUCT CO LTD·Filed 2024·Granted Apr 29, 2025·2 cites·8 claims
- 4089US6130863ASlider and electro-magnetic coil assemblyREAD RITE CORP·Filed 1998·Granted Oct 10, 2000·79 cites·15 claims
- 4183US9123358B1Conformal high moment side shield seed layer for perpendicular magnetic recording writerWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Sep 1, 2015·5 cites·17 claims
- 4281US9478236B1Perpendicular magnetic recording write headLIU FENG·Filed 2012·Granted Oct 25, 2016·5 cites·20 claims
- 4381US9135930B1Method for fabricating a magnetic write pole using vacuum depositionWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Sep 15, 2015·5 cites·17 claims
- 4477US2025391859A1Positive electrode material and preparation method therefor, positive electrode, and batteryXIAMEN HITHIUM ENERGY STORAGE TECH CO LTD·Filed 2025·Application pending·0 cites
- 4577US2025391858A1Positive electrode material and preparation method therefor, positive electrode, and batteryXIAMEN HITHIUM ENERGY STORAGE TECH CO LTD·Filed 2025·Application pending·0 cites
- 4676US5886959AThin-film electro-magnetic coil design for use in a flying magneto-optical headREAD RITE CORP·Filed 1998·Granted Mar 23, 1999·28 cites·28 claims
- 4776US2025391857A1Positive electrode material and preparation method therefor, electrode, and batteryXIAMEN HITHIUM ENERGY STORAGE TECH CO LTD·Filed 2025·Application pending·0 cites
- 4871US5903525ACoil for use with magneto-optical headREAD RITE CORP·Filed 1997·Granted May 11, 1999·22 cites·30 claims
- 4965US9343086B1Magnetic recording write transducer having an improved sidewall angle profileWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted May 17, 2016·1 cites·28 claims
- 5065US8214393B2Integrating database deployment with code deploymentJOSHI VISHAL R·Filed 2009·Granted Jul 3, 2012·6 cites·20 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →