Inventor · disambiguated record
Qunwen Leng
Also filed as: LENG QUNWEN
56 granted patents·1 pending application·3,130 citations·filing 1999–2018
99Inventor score
Files withWESTERN DIGITAL FREMONT LLC34LENG QUNWEN5OPLINK COMMUNICATIONS INC4KAISER CHRISTIAN3READ RITE CORP3
Top patents by PatentIndex Score
57 records- 0199US8760818B1Systems and methods for providing magnetic storage elements with high magneto-resistance using heusler alloysWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jun 24, 2014·149 cites·13 claims
- 0299US8638529B1Method and system for providing a magnetic read transducer having a bilayer magnetic seed layerWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jan 28, 2014·153 cites·14 claims
- 0399US8381391B2Method for providing a magnetic recording transducerWESTERN DIGITAL FREMONT LLC·Filed 2009·Granted Feb 26, 2013·148 cites·18 claims
- 0499US6756071B1Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layersWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Jun 29, 2004·146 cites·17 claims
- 0598US8582253B1Magnetic sensor having a high spin polarization reference layerZHENG YUANKAI·Filed 2012·Granted Nov 12, 2013·160 cites·20 claims
- 0698US8545999B1Method and system for providing a magnetoresistive structureLENG QUNWEN·Filed 2008·Granted Oct 1, 2013·167 cites·24 claims
- 0798US8547730B1Method and system for providing a spin tunneling magnetic element having a crystalline barrier layerSHEN YONG·Filed 2010·Granted Oct 1, 2013·147 cites·15 claims
- 0898US8498084B1Magnetoresistive sensors having an improved free layerLENG QUNWEN·Filed 2009·Granted Jul 30, 2013·159 cites·30 claims
- 0998US8493693B1Perpendicular magnetic recording transducer with AFM insertion layerZHENG YUANKAI·Filed 2012·Granted Jul 23, 2013·154 cites·24 claims
- 1098US8493695B1Method and system for providing a magnetic read transducer having an improved signal to noise ratioKAISER CHRISTIAN·Filed 2011·Granted Jul 23, 2013·157 cites·23 claims
- 1198US8422176B1Method and system for providing a magnetic read transducer having a bilayer magnetic seed layerLENG QUNWEN·Filed 2011·Granted Apr 16, 2013·158 cites·13 claims
- 1298US8194365B1Method and system for providing a read sensor having a low magnetostriction free layerLENG QUNWEN·Filed 2009·Granted Jun 5, 2012·167 cites·27 claims
- 1398US8164864B2Method and system for fabricating magnetic transducers with improved pinningKAISER CHRISTIAN·Filed 2009·Granted Apr 24, 2012·155 cites·29 claims
- 1498US7695761B1Method and system for providing a spin tunneling magnetic element having a crystalline barrier layerWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Apr 13, 2010·160 cites·12 claims
- 1598US6515573B1Method and system for providing edge-junction TMR utilizing a hard magnet as a pinned layerREAD RITE CORP·Filed 2000·Granted Feb 4, 2003·164 cites·10 claims
- 1698US6479096B1Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layersREAD RITE CORP·Filed 1999·Granted Nov 12, 2002·152 cites·11 claims
- 1797US8537502B1Method and system for providing a magnetic transducer having improved shield-to-shield spacingPARK CHANDO·Filed 2009·Granted Sep 17, 2013·150 cites·12 claims
- 1897US8116043B2Method and system for providing a magnetic transducer having an improved read sensor synthetic antiferromagnetLENG QUNWEN·Filed 2009·Granted Feb 14, 2012·149 cites·35 claims
- 1996US6277505B1Read sensor with improved thermal stability and manufacturing method thereforREAD RITE CORP·Filed 1999·Granted Aug 21, 2001·156 cites·19 claims
- 2094US9236560B1Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropyWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Jan 12, 2016·14 cites·20 claims
- 2193US9396742B1Magnetoresistive sensor for a magnetic storage system read head, and fabrication method thereofWESTERN DIGITAL FREMONT LLC·Filed 2015·Granted Jul 19, 2016·12 cites·5 claims
- 2291US9214172B2Method of manufacturing a magnetic read headWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Dec 15, 2015·11 cites·12 claims
- 2391US8970988B1Electric gaps and method for making electric gaps for multiple sensor arraysWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Mar 3, 2015·16 cites·22 claims
- 2490US9214169B1Magnetic recording read transducer having a laminated free layerWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Dec 15, 2015·8 cites·15 claims
- 2589US9666214B1Free layer magnetic reader that may have a reduced shield-to-shield spacingWESTERN DIGITAL (FREMONT) LLC·Filed 2015·Granted May 30, 2017·9 cites·21 claims
- 2689US9007725B1Sensor with positive coupling between dual ferromagnetic free layer laminatesWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Apr 14, 2015·10 cites·23 claims
- 2787US9431039B1Multiple sensor array usable in two-dimensional magnetic recordingWESTERN DIGITAL (FREMONT) LLC·Filed 2013·Granted Aug 30, 2016·9 cites·26 claims
- 2887US8755152B1Method and system for providing an improved sensor stack for a recording headPARK CHANDO·Filed 2008·Granted Jun 17, 2014·8 cites·33 claims
- 2986US9042057B1Methods for providing magnetic storage elements with high magneto-resistance using Heusler alloysWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted May 26, 2015·6 cites·15 claims
- 3083US9786301B1Apparatuses and methods for providing thin shields in a multiple sensor arrayWESTERN DIGITAL (FREMONT) LLC·Filed 2014·Granted Oct 10, 2017·6 cites·28 claims
- 3183US9705072B2Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropyWESTERN DIGITAL (FREMONT) LLC·Filed 2016·Granted Jul 11, 2017·2 cites·23 claims
- 3283US9070381B1Magnetic recording read transducer having a laminated free layerWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jun 30, 2015·6 cites·18 claims
- 3381US9214168B1Method and system for providing a magnetic transducer having improved shield-to-shield spacingWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Dec 15, 2015·4 cites·23 claims
- 3481US9093639B2Methods for manufacturing a magnetoresistive structure utilizing heating and coolingKAISER CHRISTIAN·Filed 2012·Granted Jul 28, 2015·4 cites·30 claims
- 3580US9508365B1Magnetic reader having a crystal decoupling structureWESTERN DIGITAL (FREMONT) LLC·Filed 2015·Granted Nov 29, 2016·5 cites·16 claims
- 3680US9053719B2Magnetoresistive sensor for a magnetic storage system read head, and fabrication method thereofWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Jun 9, 2015·3 cites·12 claims
- 3780US7218451B2Integrated optical multiplexer and demultiplexerOPLINK COMMUNICATIONS INC·Filed 2005·Granted May 15, 2007·12 cites·5 claims
- 3879US9147408B1Heated AFM layer deposition and cooling process for TMR magnetic recording sensor with high pinning fieldWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Sep 29, 2015·3 cites·11 claims
- 3977US6847450B2System and method for optical multiplexing and/or demultiplexingOPLINK COMMUNICATIONS INC·Filed 2002·Granted Jan 25, 2005·13 cites·31 claims
- 4075US9842615B1Magnetic reader having a nonmagnetic insertion layer for the pinning layerWESTERN DIGITAL (FREMONT) LLC·Filed 2015·Granted Dec 12, 2017·3 cites·28 claims
- 4172US9431032B1Electrical connection arrangement for a multiple sensor array usable in two-dimensional magnetic recordingWESTERN DIGITAL (FREMONT) LLC·Filed 2013·Granted Aug 30, 2016·2 cites·27 claims
- 4271US9361914B1Magnetic sensor with thin capping layerWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Jun 7, 2016·2 cites·30 claims
- 4371US8984740B1Process for providing a magnetic recording transducer having a smooth magnetic seed layerWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Mar 24, 2015·2 cites·10 claims
- 4465US6914676B2System and method for optical multiplexing and/or demultiplexingOPLINK COMMUNICATIONS INC·Filed 2002·Granted Jul 5, 2005·6 cites·23 claims
- 4564US9003640B1Method for fabricating a magnetic recording transducerWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Apr 14, 2015·0 cites·8 claims
- 4662US10008219B2Recording read heads with a multi-layer AFM layer methods and apparatusesWESTERN DIGITAL FREMONT LLC·Filed 2016·Granted Jun 26, 2018·0 cites·9 claims
- 4762US9830936B2Magnetic read head with antiferromagentic layerWESTERN DIGITAL (FREMONT) LLC·Filed 2015·Granted Nov 28, 2017·1 cites·4 claims
- 4858US9361913B1Recording read heads with a multi-layer AFM layer methods and apparatusesWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jun 7, 2016·0 cites·9 claims
- 4953US11297441B2MicrophoneGOERTEK INC·Filed 2018·Granted Apr 5, 2022·0 cites·10 claims
- 5052US10242700B2Magnetic reader having a nonmagnetic insertion layer for the pinning layerWESTERN DIGITAL FREMONT LLC·Filed 2017·Granted Mar 26, 2019·0 cites·16 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →