Inventor
ZHENG YUANKAI
US103 patents
⚠️ This page may combine multiple inventors who share the name “ZHENG YUANKAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEAGATE TECHNOLOGY LLC
14 patentsUS7999338B2Aug 16, 2011
Magnetic stack having reference layers with orthogonal magnetization orientation directions
SEAGATE TECHNOLOGY LLC21 citations93
US7876604B2Jan 25, 2011
Stram with self-reference read scheme
SEAGATE TECHNOLOGY LLC19 citations93
US7826255B2Nov 2, 2010
Variable write and read methods for resistive random access memory
SEAGATE TECHNOLOGY LLC16 citations93
US7936592B2May 3, 2011
Non-volatile memory cell with precessional switching
SEAGATE TECHNOLOGY LLC18 citations91
US8860157B2Oct 14, 2014
Memory cell with phonon-blocking insulating layer
SEAGATE TECHNOLOGY LLC5 citations84
US8670271B2Mar 11, 2014
Magnetic stack having assist layers
SEAGATE TECHNOLOGY LLC9 citations84
US8045366B2Oct 25, 2011
STRAM with composite free magnetic element
SEAGATE TECHNOLOGY LLC11 citations84
US8004883B2Aug 23, 2011
Thermally assisted multi-bit MRAM
SEAGATE TECHNOLOGY LLC11 citations84
US7985994B2Jul 26, 2011
Flux-closed STRAM with electronically reflective insulative spacer
SEAGATE TECHNOLOGY LLC12 citations84
US7969771B2Jun 28, 2011
Semiconductor device with thermally coupled phase change layers
SEAGATE TECHNOLOGY LLC17 citations84
US7826256B2Nov 2, 2010
STRAM with compensation element
SEAGATE TECHNOLOGY LLC8 citations84
US8039913B2Oct 18, 2011
Magnetic stack with laminated layer
SEAGATE TECHNOLOGY LLC8 citations83
US7952917B2May 31, 2011
Variable write and read methods for resistive random access memory
SEAGATE TECHNOLOGY LLC4 citations74
US7746687B2Jun 29, 2010
Thermally assisted multi-bit MRAM
SEAGATE TECHNOLOGY LLC7 citations74
WESTERN DIGITAL FREMONT LLC
8 patentsUS8638529B1Jan 28, 2014
Method and system for providing a magnetic read transducer having a bilayer magnetic seed layer
WESTERN DIGITAL FREMONT LLC153 citations99
US9396742B1Jul 19, 2016
Magnetoresistive sensor for a magnetic storage system read head, and fabrication method thereof
WESTERN DIGITAL FREMONT LLC12 citations84
US9214169B1Dec 15, 2015
Magnetic recording read transducer having a laminated free layer
WESTERN DIGITAL FREMONT LLC8 citations84
US9214172B2Dec 15, 2015
Method of manufacturing a magnetic read head
WESTERN DIGITAL FREMONT LLC11 citations84
US9007725B1Apr 14, 2015
Sensor with positive coupling between dual ferromagnetic free layer laminates
WESTERN DIGITAL FREMONT LLC10 citations84
US9236560B1Jan 12, 2016
Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropy
WESTERN DIGITAL FREMONT LLC14 citations82
US10068601B1Sep 4, 2018
Free layer only magnetic reader that may have a reduced shield-to-shield spacing and a multilayer side bias
WESTERN DIGITAL FREMONT LLC6 citations73
US9070381B1Jun 30, 2015
Magnetic recording read transducer having a laminated free layer
WESTERN DIGITAL FREMONT LLC6 citations73
ZHENG YUANKAI
8 patentsUS8582253B1Nov 12, 2013
Magnetic sensor having a high spin polarization reference layer
ZHENG YUANKAI160 citations99
US8493693B1Jul 23, 2013
Perpendicular magnetic recording transducer with AFM insertion layer
ZHENG YUANKAI154 citations99
US8416620B2Apr 9, 2013
Magnetic stack having assist layer
ZHENG YUANKAI46 citations97
US8422279B2Apr 16, 2013
STRAM with composite free magnetic element
ZHENG YUANKAI5 citations84
US8405171B2Mar 26, 2013
Memory cell with phonon-blocking insulating layer
ZHENG YUANKAI5 citations84
US8289756B2Oct 16, 2012
Non volatile memory including stabilizing structures
ZHENG YUANKAI12 citations84
US8199564B2Jun 12, 2012
Thermally assisted multi-bit MRAM
ZHENG YUANKAI11 citations84
US8089132B2Jan 3, 2012
Magnetic memory with phonon glass electron crystal material
ZHENG YUANKAI12 citations84
WESTERN DIGITAL TECH INC
7 patentsUS10249329B1Apr 2, 2019
Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with wedge shaped free layer
WESTERN DIGITAL TECH INC9 citations84
US12040114B2Jul 16, 2024
Magnetoresistive device comprising a synthetic antiferromagnetic coupling layer of RuAl having a (001) texture
WESTERN DIGITAL TECH INC2 citations73
US11430592B2Aug 30, 2022
Magnetic elements of amorphous based dual free layer structures and recording devices using such elements
WESTERN DIGITAL TECH INC2 citations73
US11211083B1Dec 28, 2021
MAMR head with synthetic antiferromagnetic (SAF) coupled notch
WESTERN DIGITAL TECH INC2 citations73
US11199594B2Dec 14, 2021
TMR sensor with magnetic tunnel junctions with a free layer having an intrinsic anisotropy
WESTERN DIGITAL TECH INC2 citations72
US12207563B2Jan 21, 2025
Magnetoresistive devices comprising a synthetic antiferromagnetic coupling layer of RuAl having a (110) texture
WESTERN DIGITAL TECH INC0 citations63
US12106784B2Oct 1, 2024
Read sensor with ordered heusler alloy free layer and semiconductor barrier layer
WESTERN DIGITAL TECH INC0 citations63
WESTERN DIGITAL (FREMONT) LLC
5 patentsUS9786305B1Oct 10, 2017
Magnetic read apparatus having multiple read sensors with reduced sensor spacing usable in two-dimensional magnetic recording applications
WESTERN DIGITAL (FREMONT) LLC14 citations84
US9666214B1May 30, 2017
Free layer magnetic reader that may have a reduced shield-to-shield spacing
WESTERN DIGITAL (FREMONT) LLC9 citations83
US9842615B1Dec 12, 2017
Magnetic reader having a nonmagnetic insertion layer for the pinning layer
WESTERN DIGITAL (FREMONT) LLC3 citations73
US9508365B1Nov 29, 2016
Magnetic reader having a crystal decoupling structure
WESTERN DIGITAL (FREMONT) LLC5 citations72
US9705072B2Jul 11, 2017
Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropy
WESTERN DIGITAL (FREMONT) LLC2 citations71
GUO YIMIN
1 patentLENG QUNWEN
1 patentSEAGATE TECHNOLOGY
1 patentAGENCY SCIENCE TECH & RES
1 patentINST DATA STORAGE
1 patentSANDISK TECHNOLOGIES LLC
1 patentLOU XIAOHUA
1 patentXI HAIWEN
1 patentShowing the top 50 of 103 patents by PatentIndex Score.