Inventor · disambiguated record
Cherngye Hwang
Also filed as: HWANG CHERNGYE
116 granted patents·18 pending applications·1,098 citations·filing 1988–2025
99Inventor score
Files withWESTERN DIGITAL TECH INC52IBM45HGST Netherlands BV11HITACHI GLOBAL STORAGE TECH9BISKEBORN ROBERT G6
Top patents by PatentIndex Score
134 records- 0198US11532323B1BiSbX (012) layers having increased operating temperatures for SOT and MRAM devicesWESTERN DIGITAL TECH INC·Filed 2021·Granted Dec 20, 2022·21 cites·32 claims
- 0298US11094338B1SOT film stack for differential readerWESTERN DIGITAL TECH INC·Filed 2020·Granted Aug 17, 2021·27 cites·20 claims
- 0397US11489108B2BiSb topological insulator with seed layer or interlayer to prevent sb diffusion and promote BiSb (012) orientationWESTERN DIGITAL TECH INC·Filed 2020·Granted Nov 1, 2022·6 cites·27 claims
- 0496US11783853B1Topological insulator based spin torque oscillator readerWESTERN DIGITAL TECH INC·Filed 2022·Granted Oct 10, 2023·5 cites·27 claims
- 0596US11495741B2Bismuth antimony alloys for use as topological insulatorsWESTERN DIGITAL TECH INC·Filed 2020·Granted Nov 8, 2022·15 cites·24 claims
- 0695US5315468AMagnetoresistive sensor having antiferromagnetic layer for exchange biasIBM·Filed 1992·Granted May 24, 1994·78 cites·11 claims
- 0793US11670329B1Two-dimensional magnetic recording (TDMR) to counter tape dimensional stability (TDS) errors in a tape mediaWESTERN DIGITAL TECH INC·Filed 2021·Granted Jun 6, 2023·4 cites·21 claims
- 0893US11437061B1Read head having one or more antiferromagnetic layers above soft bias side shields, and related methodsWESTERN DIGITAL TECH INC·Filed 2021·Granted Sep 6, 2022·4 cites·11 claims
- 0993US10083713B1Heat-assisted magnetic recording (HAMR) write head with protective multilayer film for near-field transducerWESTERN DIGITAL TECH INC·Filed 2017·Granted Sep 25, 2018·22 cites·29 claims
- 1091US8526137B2Head comprising a crystalline alumina layerBISKEBORN ROBERT G·Filed 2010·Granted Sep 3, 2013·13 cites·23 claims
- 1191US5436778AMagnetoresistive sensor having antiferromagnetic exchange biasIBM·Filed 1994·Granted Jul 25, 1995·44 cites·24 claims
- 1289US11763973B2Buffer layers and interlayers that promote BiSbx (012) alloy orientation for SOT and MRAM devicesWESTERN DIGITAL TECH INC·Filed 2021·Granted Sep 19, 2023·1 cites·32 claims
- 1388US6858909B2CMP assisted liftoff micropatterningIBM·Filed 2002·Granted Feb 22, 2005·20 cites·18 claims
- 1487US10748561B1Magnetic recording disk drive with a contact pad for protection of the write head and process for making the padWESTERN DIGITAL TECHNOLOGIES INC·Filed 2019·Granted Aug 18, 2020·7 cites·18 claims
- 1587US8679733B2Patterning process for small devicesBISKEBORN ROBERT G·Filed 2011·Granted Mar 25, 2014·5 cites·17 claims
- 1687US6423240B1Process to tune the slider trailing edge profileIBM·Filed 2000·Granted Jul 23, 2002·24 cites·19 claims
- 1786US5867890AMethod for making a thin film merged magnetoresistive read/inductive write head having a pedestal pole tipIBM·Filed 1997·Granted Feb 9, 1999·47 cites·10 claims
- 1886US5268806AMagnetoresistive transducer having tantalum lead conductorsIBM·Filed 1992·Granted Dec 7, 1993·42 cites·8 claims
- 1986US2025366376A1Buffer Layers And Interlayers That Promote BiSbx (012) Alloy Orientation For SOT And MRAM DevicesWESTERN DIGITAL TECH INC·Filed 2025·Application pending·0 cites
- 2085US9349395B2System and method for differential etchingBISKEBORN ROBERT G·Filed 2012·Granted May 24, 2016·5 cites·16 claims
- 2185US9053718B1Method for manufacturing a magnetic tape head using an ink mask formed by printingHGST Netherlands BV·Filed 2013·Granted Jun 9, 2015·12 cites·10 claims
- 2285US6346183B1Use of thin carbon films as a bottom anti-reflective coating in manufacturing magnetic headsIBM·Filed 2000·Granted Feb 12, 2002·20 cites·21 claims
- 2384US5734519AContact magnetic recording disk file with improved head assemblyIBM·Filed 1993·Granted Mar 31, 1998·35 cites·18 claims
- 2483US12412597B2Non-localized spin valve multi-free-layer reader hybridized with spin orbit torque layersWESTERN DIGITAL TECH INC·Filed 2023·Granted Sep 9, 2025·1 cites·19 claims
- 2582US11694713B2BiSb topological insulator with novel buffer layer that promotes a BiSb (012) orientationWESTERN DIGITAL TECH INC·Filed 2020·Granted Jul 4, 2023·1 cites·20 claims
- 2682US6503406B1Method for forming the air bearing surface of a slider using nonreactive plasmaIBM·Filed 2000·Granted Jan 7, 2003·17 cites·5 claims
- 2782US6416935B1Method for forming the air bearing surface of a sliderIBM·Filed 2000·Granted Jul 9, 2002·17 cites·8 claims
- 2881US12394432B2Non-localized spin valve reader hybridized with spin orbit torque layerWESTERN DIGITAL TECH INC·Filed 2023·Granted Aug 19, 2025·1 cites·28 claims
- 2980US6427319B1Method for protecting magnetic read/write transducers against electrostatic discharge during disk drive manufacturingIBM·Filed 2000·Granted Aug 6, 2002·15 cites·6 claims
- 3080US5614727AThin film diode having large current capability with low turn-on voltages for integrated devicesIBM·Filed 1995·Granted Mar 25, 1997·46 cites·15 claims
- 3180US4914538AMagnetoresistive read transducerIBM·Filed 1988·Granted Apr 3, 1990·24 cites·6 claims
- 3279US6434814B1Method of manufacturing a magnetic head including a read head with read track width defining layer that planarizes the write gap layer of a write headIBM·Filed 1998·Granted Aug 20, 2002·29 cites·15 claims
- 3378US11908496B2BiSbX (012) layers having increased operating temperatures for SOT and MRAM devicesWESTERN DIGITAL TECH INC·Filed 2022·Granted Feb 20, 2024·0 cites·25 claims
- 3478US6519118B2Read head with read track width defining layer that planarizes the write gap layer of a write headIBM·Filed 2002·Granted Feb 11, 2003·11 cites·20 claims
- 3577US11631535B1Longitudinal sensor bias structures and method of formation thereofWESTERN DIGITAL TECH INC·Filed 2021·Granted Apr 18, 2023·0 cites·7 claims
- 3677US7137190B2Method for fabricating a magnetic transducer with a corrosion resistant layer on metallic thin films by nitrogen exposureHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Nov 21, 2006·11 cites·5 claims
- 3777US6969625B2CMP assisted liftoff micropatterningIBM·Filed 2004·Granted Nov 29, 2005·9 cites·25 claims
- 3877US5258884AMagnetoresistive read transducer containing a titanium and tungsten alloy spacer layerIBM·Filed 1991·Granted Nov 2, 1993·24 cites·11 claims
- 3976US12487296B2Spin orbit torque based thermal sensor for insitu monitoring of magnetic recording headWESTERN DIGITAL TECH INC·Filed 2023·Granted Dec 2, 2025·0 cites·25 claims
- 4076US11514932B1Soft bias shape anisotropy stabilization read head design and method of making sameWESTERN DIGITAL TECH INC·Filed 2021·Granted Nov 29, 2022·1 cites·19 claims
- 4176US10783924B2Control head to head spacing using a piezoelectric deviceWESTERN DIGITAL TECH INC·Filed 2019·Granted Sep 22, 2020·3 cites·20 claims
- 4276US9460738B1Method to coat NFT area with highly thermal conducting material in HAMR structureHGST Netherlands BV·Filed 2015·Granted Oct 4, 2016·3 cites·9 claims
- 4376US6623652B1Reactive ion etching of the lapped trailing edge surface of a sliderIBM·Filed 2000·Granted Sep 23, 2003·11 cites·1 claims
- 4476US6569295B2Method for grading surface topography for improved step coverage and planarizationIBM·Filed 2001·Granted May 27, 2003·15 cites·15 claims
- 4576US2025014618A1Doping Process To Refine Grain Size For Smoother BiSb Film SurfaceWESTERN DIGITAL TECH INC·Filed 2024·Application pending·0 cites
- 4676US2025054671A1Highly Textured 001 BiSb And Materials for Making SameWESTERN DIGITAL TECH INC·Filed 2024·Application pending·0 cites
- 4775US12176132B2Highly textured 001 BiSb and materials for making sameWESTERN DIGITAL TECH INC·Filed 2022·Granted Dec 24, 2024·0 cites·24 claims
- 4875US12125512B2Doping process to refine grain size for smoother BiSb film surfaceWESTERN DIGITAL TECH INC·Filed 2022·Granted Oct 22, 2024·0 cites·23 claims
- 4975US11270872B2Base conducting layer beneath graphite layer of ceramic cathode for use with cathodic arc depositionWESTERN DIGITAL TECH INC·Filed 2019·Granted Mar 8, 2022·0 cites·21 claims
- 5075US6117283ASilicon coating on air bearing surface for magnetic thin film headsIBM·Filed 1996·Granted Sep 12, 2000·23 cites·11 claims
Showing the top 50 of 134 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →