Inventor · disambiguated record
Yuankai Zheng
Also filed as: ZHENG YUANKAI
103 granted patents·11 pending applications·1,418 citations·filing 2002–2024
99Inventor score
Files withSEAGATE TECHNOLOGY LLC26WESTERN DIGITAL TECH INC25WESTERN DIGITAL FREMONT LLC24ZHENG YUANKAI22AGENCY SCIENCE TECH & RES4
Top patents by PatentIndex Score
114 records- 0199US8797692B1Magnetic recording sensor with AFM exchange coupled shield stabilizationGUO YIMIN·Filed 2012·Granted Aug 5, 2014·166 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
- 0398US8582253B1Magnetic sensor having a high spin polarization reference layerZHENG YUANKAI·Filed 2012·Granted Nov 12, 2013·160 cites·20 claims
- 0498US8493693B1Perpendicular magnetic recording transducer with AFM insertion layerZHENG YUANKAI·Filed 2012·Granted Jul 23, 2013·154 cites·24 claims
- 0598US8422176B1Method 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
- 0698US8416620B2Magnetic stack having assist layerZHENG YUANKAI·Filed 2010·Granted Apr 9, 2013·46 cites·20 claims
- 0797US7936598B2Magnetic stack having assist layerSEAGATE TECHNOLOGY·Filed 2009·Granted May 3, 2011·60 cites·20 claims
- 0896US12040114B2Magnetoresistive device comprising a synthetic antiferromagnetic coupling layer of RuAl having a (001) textureWESTERN DIGITAL TECH INC·Filed 2022·Granted Jul 16, 2024·2 cites·39 claims
- 0995US11430592B2Magnetic elements of amorphous based dual free layer structures and recording devices using such elementsWESTERN DIGITAL TECH INC·Filed 2021·Granted Aug 30, 2022·2 cites·22 claims
- 1094US10755733B1Read head including semiconductor spacer and long spin diffusion length nonmagnetic conductive material and method of making thereofSANDISK TECHNOLOGIES LLC·Filed 2019·Granted Aug 25, 2020·17 cites·14 claims
- 1194US9236560B1Spin 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
- 1294US7999338B2Magnetic stack having reference layers with orthogonal magnetization orientation directionsSEAGATE TECHNOLOGY LLC·Filed 2009·Granted Aug 16, 2011·21 cites·11 claims
- 1393US9396742B1Magnetoresistive 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
- 1493US8670271B2Magnetic stack having assist layersSEAGATE TECHNOLOGY LLC·Filed 2013·Granted Mar 11, 2014·9 cites·20 claims
- 1592US9786305B1Magnetic read apparatus having multiple read sensors with reduced sensor spacing usable in two-dimensional magnetic recording applicationsWESTERN DIGITAL (FREMONT) LLC·Filed 2016·Granted Oct 10, 2017·14 cites·23 claims
- 1692US8199564B2Thermally assisted multi-bit MRAMZHENG YUANKAI·Filed 2011·Granted Jun 12, 2012·11 cites·20 claims
- 1791US9214172B2Method of manufacturing a magnetic read headWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Dec 15, 2015·11 cites·12 claims
- 1891US8004883B2Thermally assisted multi-bit MRAMSEAGATE TECHNOLOGY LLC·Filed 2010·Granted Aug 23, 2011·11 cites·20 claims
- 1990US9214169B1Magnetic recording read transducer having a laminated free layerWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Dec 15, 2015·8 cites·15 claims
- 2090US7936592B2Non-volatile memory cell with precessional switchingSEAGATE TECHNOLOGY LLC·Filed 2009·Granted May 3, 2011·18 cites·20 claims
- 2190US7876604B2Stram with self-reference read schemeSEAGATE TECHNOLOGY LLC·Filed 2009·Granted Jan 25, 2011·19 cites·20 claims
- 2290US7310265B2Magnetic memory deviceAGENCY SCIENCE TECH & RES·Filed 2004·Granted Dec 18, 2007·65 cites·21 claims
- 2389US10249329B1Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with wedge shaped free layerWESTERN DIGITAL TECH INC·Filed 2017·Granted Apr 2, 2019·9 cites·19 claims
- 2489US9666214B1Free 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
- 2589US9007725B1Sensor with positive coupling between dual ferromagnetic free layer laminatesWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Apr 14, 2015·10 cites·23 claims
- 2689US7985994B2Flux-closed STRAM with electronically reflective insulative spacerSEAGATE TECHNOLOGY LLC·Filed 2008·Granted Jul 26, 2011·12 cites·26 claims
- 2789US7826255B2Variable write and read methods for resistive random access memorySEAGATE TECHNOLOGY LLC·Filed 2008·Granted Nov 2, 2010·16 cites·7 claims
- 2888US8089132B2Magnetic memory with phonon glass electron crystal materialZHENG YUANKAI·Filed 2009·Granted Jan 3, 2012·12 cites·19 claims
- 2988US8045366B2STRAM with composite free magnetic elementSEAGATE TECHNOLOGY LLC·Filed 2009·Granted Oct 25, 2011·11 cites·23 claims
- 3087US8422279B2STRAM with composite free magnetic elementZHENG YUANKAI·Filed 2011·Granted Apr 16, 2013·5 cites·18 claims
- 3187US8217478B2Magnetic stack with oxide to reduce switching currentLOU XIAOHUA·Filed 2009·Granted Jul 10, 2012·11 cites·20 claims
- 3286US11199594B2TMR sensor with magnetic tunnel junctions with a free layer having an intrinsic anisotropyWESTERN DIGITAL TECH INC·Filed 2019·Granted Dec 14, 2021·2 cites·20 claims
- 3386US7969771B2Semiconductor device with thermally coupled phase change layersSEAGATE TECHNOLOGY LLC·Filed 2008·Granted Jun 28, 2011·17 cites·19 claims
- 3485US8860157B2Memory cell with phonon-blocking insulating layerSEAGATE TECHNOLOGY LLC·Filed 2013·Granted Oct 14, 2014·5 cites·20 claims
- 3584US11211083B1MAMR head with synthetic antiferromagnetic (SAF) coupled notchWESTERN DIGITAL TECH INC·Filed 2020·Granted Dec 28, 2021·2 cites·21 claims
- 3684US8405171B2Memory cell with phonon-blocking insulating layerZHENG YUANKAI·Filed 2010·Granted Mar 26, 2013·5 cites·20 claims
- 3784US8294227B2Magnetic stack having reference layers with orthogonal magnetization orientation directionsZHENG YUANKAI·Filed 2011·Granted Oct 23, 2012·4 cites·8 claims
- 3884US8289756B2Non volatile memory including stabilizing structuresZHENG YUANKAI·Filed 2009·Granted Oct 16, 2012·12 cites·23 claims
- 3983US11776725B2Magnetic elements of amorphous based dual free layer structures and recording devices using such elementsWESTERN DIGITAL TECH INC·Filed 2022·Granted Oct 3, 2023·0 cites·22 claims
- 4083US10068601B1Free layer only magnetic reader that may have a reduced shield-to-shield spacing and a multilayer side biasWESTERN DIGITAL FREMONT LLC·Filed 2016·Granted Sep 4, 2018·6 cites·19 claims
- 4183US9705072B2Spin 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
- 4283US9070381B1Magnetic recording read transducer having a laminated free layerWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jun 30, 2015·6 cites·18 claims
- 4383US8289759B2Non-volatile memory cell with precessional switchingWANG XIAOBIN·Filed 2011·Granted Oct 16, 2012·4 cites·20 claims
- 4482US11170806B2Magnetic sensor array with single TMR film plus laser annealing and characterizationWESTERN DIGITAL TECH INC·Filed 2020·Granted Nov 9, 2021·1 cites·18 claims
- 4582US6597618B2Magnetic tunnel junction magnetic random access memoryINST DATA STORAGE·Filed 2002·Granted Jul 22, 2003·44 cites·7 claims
- 4681US8686524B2Magnetic stack with oxide to reduce switching currentLOU XIAOHUA·Filed 2012·Granted Apr 1, 2014·3 cites·23 claims
- 4780US9508365B1Magnetic reader having a crystal decoupling structureWESTERN DIGITAL (FREMONT) LLC·Filed 2015·Granted Nov 29, 2016·5 cites·16 claims
- 4880US9053719B2Magnetoresistive 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
- 4980US7826256B2STRAM with compensation elementSEAGATE TECHNOLOGY LLC·Filed 2008·Granted Nov 2, 2010·8 cites·24 claims
- 5079US9147408B1Heated 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
Showing the top 50 of 114 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →