Inventor · disambiguated record
Lei Zhang
Also filed as: ZHANG LEI · ZHANG LEI L · ZHANG LEI LARRY
55 granted patents·7 pending applications·1,366 citations·filing 1996–2022
98Inventor score
Files withSHOWA DENKO KK33SEAGATE TECHNOLOGY LLC5HEADWAY TECHNOLOGIES INC4SEAGATE TECHNOLOGY4WESTERN DIGITAL FREMONT LLC4
Top patents by PatentIndex Score
62 records- 0198US8468682B1Method for manufacturing perpendicular magnetic recording transducersZHANG LEI LARRY·Filed 2012·Granted Jun 25, 2013·149 cites·19 claims
- 0298US8141235B1Method for manufacturing a perpendicular magnetic recording transducersZHANG LEI LARRY·Filed 2006·Granted Mar 27, 2012·158 cites·11 claims
- 0398US8077434B1Perpendicular magnetic recording head having a recessed magnetic base layerSHEN YONG·Filed 2007·Granted Dec 13, 2011·155 cites·16 claims
- 0498US8015692B1Method for providing a perpendicular magnetic recording (PMR) headWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Sep 13, 2011·196 cites·9 claims
- 0598US7551406B1Dual electrical lapping guides with common bonding padWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Jun 23, 2009·200 cites·9 claims
- 0695US7508627B1Method and system for providing perpendicular magnetic recording transducersWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Mar 24, 2009·171 cites·30 claims
- 0793US6396667B1Electromagnetic disc drive microactuator and suspensionSEAGATE TECHNOLOGY LLC·Filed 1998·Granted May 28, 2002·78 cites·23 claims
- 0891US10127939B2Magnetic storage apparatus including a magnetic recording medium having a barrier layer between two heat sink layersSHOWA DENKO KK·Filed 2018·Granted Nov 13, 2018·11 cites·17 claims
- 0983US11043238B1Magnetic recording medium and magnetic storage deviceSHOWA DENKO KK·Filed 2020·Granted Jun 22, 2021·2 cites·4 claims
- 1083US8792313B2Magnetic recording medium having multiple under layers for heat-assisted magnetic recording apparatusSHOWA DENKO KK·Filed 2013·Granted Jul 29, 2014·6 cites·7 claims
- 1183US6122149AMagnetic microactuator and inductive sensor having shaped pole configurationSEAGATE TECHNOLOGY·Filed 1998·Granted Sep 19, 2000·40 cites·12 claims
- 1283US5991114ADisc drive having gram load reducer and method of operating gram load reducerSEAGATE TECHNOLOGY·Filed 1997·Granted Nov 23, 1999·41 cites·11 claims
- 1382US9251834B2Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2014·Granted Feb 2, 2016·5 cites·18 claims
- 1481US6256175B1Magnetic shielding for electromagnetic microactuatorSEAGATE TECHNOLOGY LLC·Filed 2000·Granted Jul 3, 2001·13 cites·10 claims
- 1580US7751146B2Abs through aggressive stitchingHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Jul 6, 2010·3 cites·6 claims
- 1680US7631418B2Process to form an ABS through aggressive stitchingHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Dec 15, 2009·3 cites·6 claims
- 1779US7806109B2Fuel supply apparatusAISAN IND·Filed 2008·Granted Oct 5, 2010·9 cites·23 claims
- 1877US6163434APiezoresistive position sensors embedded in disc drive microactuatorSEAGATE TECHNOLOGY LLC·Filed 1998·Granted Dec 19, 2000·28 cites·12 claims
- 1973US9245567B2Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2014·Granted Jan 26, 2016·2 cites·14 claims
- 2072US9384772B2Magnetic recording medium having L10 magnetic layer and plurality of underlayers, and magnetic storage apparatusSHOWA DENKO KK·Filed 2014·Granted Jul 5, 2016·2 cites·10 claims
- 2172US9230588B2Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2014·Granted Jan 5, 2016·2 cites·12 claims
- 2269US11087011B2Data storage device with secure access based on tap inputsWESTERN DIGITAL TECH INC·Filed 2017·Granted Aug 10, 2021·1 cites·26 claims
- 2369US6694603B1Process of forming a magnetic microactuatorSEAGATE TECHNOLOGY LLC·Filed 2000·Granted Feb 24, 2004·11 cites·7 claims
- 2468US10008220B2Magnetic recording medium and magnetic memory device including magnetic layers having granular structure of magnetic grains and grain boundary portionSHOWA DENKO KK·Filed 2017·Granted Jun 26, 2018·2 cites·10 claims
- 2567US8988828B2Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2014·Granted Mar 24, 2015·1 cites·12 claims
- 2666US9007880B2Thermally assisted magnetic recording medium and magnetic recording and reproducing apparatusSHOWA DENKO KK·Filed 2013·Granted Apr 14, 2015·1 cites·7 claims
- 2765US9361924B2Magnetic recording medium and magnetic recording and reproducing apparatusSHOWA DENKO KK·Filed 2013·Granted Jun 7, 2016·1 cites·9 claims
- 2864US10553242B2Heat-assisted magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2019·Granted Feb 4, 2020·1 cites·6 claims
- 2963US6269687B1Force sensing sliderSEAGATE TECHNOLOGY LLC·Filed 1998·Granted Aug 7, 2001·15 cites·18 claims
- 3061US10614849B2Heat-assisted magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2019·Granted Apr 7, 2020·1 cites·9 claims
- 3160US12004287B2Printed circuit boardERICSSON TELEFON AB L M·Filed 2020·Granted Jun 4, 2024·0 cites·16 claims
- 3260US7193814B2Pole piece for high track density recordingHEADWAY TECHNOLOGIES INC·Filed 2004·Granted Mar 20, 2007·7 cites·17 claims
- 3359US8861134B1Method and system for providing perpendicular magnetic recording transducers utilizing a damascene approachWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Oct 14, 2014·0 cites·12 claims
- 3458US9934810B2Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2014·Granted Apr 3, 2018·0 cites·5 claims
- 3557US11846605B2Magnetic property measuring apparatus and magnetic property measuring methodSHOWA DENKO KK·Filed 2022·Granted Dec 19, 2023·0 cites·7 claims
- 3654US5857085AInterface device for XT/AT system devices on high speed local busCYPRESS SEMICONDUCTOR CORP·Filed 1996·Granted Jan 5, 1999·34 cites·12 claims
- 3753US7251102B2ABS through aggressive stitchingHEADWAY TECHNOLOGIES INC·Filed 2004·Granted Jul 31, 2007·1 cites·11 claims
- 3853US6067215AMagnetic shielding for electromagnetic microactuatorSEAGATE TECHNOLOGY·Filed 1998·Granted May 23, 2000·8 cites·1 claims
- 3952US11676632B2Magnetic recording medium, method of manufacturing magnetic recording medium and magnetic storage deviceSHOWA DENKO KK·Filed 2020·Granted Jun 13, 2023·0 cites·20 claims
- 4052US11024334B2High density magnetic recording medium for heat-assisted magnetic storage apparatusSHOWA DENKO KK·Filed 2020·Granted Jun 1, 2021·0 cites·17 claims
- 4151US12087341B2Magnetic recording medium and magnetic read/write apparatusSHOWA DENKO KK·Filed 2020·Granted Sep 10, 2024·0 cites·9 claims
- 4251US11189313B2Magnetic recording medium utilizing adjacent underlayer and magnetic layer having particular compositions, magnetic storage apparatus, and method of manufacturing magnetic recording mediumSHOWA DENKO KK·Filed 2021·Granted Nov 30, 2021·0 cites·14 claims
- 4351US10978103B2Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2019·Granted Apr 13, 2021·0 cites·7 claims
- 4449US12261108B2Chip heat dissipating structure, chip structure, circuit board and supercomputing deviceBITMAIN TECH INC·Filed 2021·Granted Mar 25, 2025·0 cites·17 claims
- 4548US10685674B2Assisted magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2019·Granted Jun 16, 2020·0 cites·7 claims
- 4648US10643649B2Heat-assisted magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2019·Granted May 5, 2020·0 cites·5 claims
- 4748US5910865ASlider having terminated side rails with trailing edge cutsSEAGATE TECHNOLOGY·Filed 1997·Granted Jun 8, 1999·8 cites·8 claims
- 4848US2018182423A1Magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2018·Application pending·0 cites
- 4947US11037591B2Heat-assisted magnetic recording medium and magnetic storage apparatusSHOWA DENKO KK·Filed 2019·Granted Jun 15, 2021·0 cites·6 claims
- 5046US10360936B2Assisted magnetic recording medium including a pinning layer and magnetic storage deviceSHOWA DENKO KK·Filed 2018·Granted Jul 23, 2019·0 cites·6 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →