Inventor
SHI XIZENG
US51 patents
⚠️ This page may combine multiple inventors who share the name “SHI XIZENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTERN DIGITAL FREMONT INC
19 patentsUS7007372B1Mar 7, 2006
Method for making high speed, high areal density inductive write structure
WESTERN DIGITAL FREMONT INC153 citations99
US6906894B2Jun 14, 2005
Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same
WESTERN DIGITAL FREMONT INC166 citations99
US6888184B1May 3, 2005
Shielded magnetic ram cells
WESTERN DIGITAL FREMONT INC162 citations99
US6809899B1Oct 26, 2004
Magnetic heads for perpendicular recording with trapezoidal pole tips
WESTERN DIGITAL FREMONT INC266 citations99
US6803615B1Oct 12, 2004
Magnetic tunnel junction MRAM with improved stability
WESTERN DIGITAL FREMONT INC188 citations99
US6791793B1Sep 14, 2004
Perpendicular recording write head having a recessed magnetic adjunct pole and method of making the same
WESTERN DIGITAL FREMONT INC193 citations99
US6785955B1Sep 7, 2004
Method for providing pedestal-defined zero throat writer
WESTERN DIGITAL FREMONT INC151 citations99
US6747301B1Jun 8, 2004
Spin dependent tunneling barriers formed with a magnetic alloy
WESTERN DIGITAL FREMONT INC159 citations99
US6713801B1Mar 30, 2004
α-tantalum lead for use with magnetic tunneling junctions
WESTERN DIGITAL FREMONT INC157 citations99
US6683763B1Jan 27, 2004
Method and system for providing a self-aligned electrical contact for a TMR element
WESTERN DIGITAL FREMONT INC149 citations99
US6639291B1Oct 28, 2003
Spin dependent tunneling barriers doped with magnetic particles
WESTERN DIGITAL FREMONT INC179 citations99
US6834010B1Dec 21, 2004
Temperature dependent write current source for magnetic tunnel junction MRAM
WESTERN DIGITAL FREMONT INC155 citations98
US6721203B1Apr 13, 2004
Designs of reference cells for magnetic tunnel junction (MTJ) MRAM
WESTERN DIGITAL FREMONT INC165 citations98
US6707083B1Mar 16, 2004
Magnetic tunneling junction with improved power consumption
WESTERN DIGITAL FREMONT INC177 citations98
US6697294B1Feb 24, 2004
Designs of reference cells for magnetic tunnel junction (MTJ) MRAM
WESTERN DIGITAL FREMONT INC241 citations98
US6687178B1Feb 3, 2004
Temperature dependent write current source for magnetic tunnel junction MRAM
WESTERN DIGITAL FREMONT INC167 citations98
US6680863B1Jan 20, 2004
MRAM memory array having merged word lines
WESTERN DIGITAL FREMONT INC159 citations98
US6744608B1Jun 1, 2004
Method and system for making TMR junctions
WESTERN DIGITAL FREMONT INC168 citations97
US6721138B1Apr 13, 2004
Inductive transducer with stitched pole tip and pedestal defining zero throat height
WESTERN DIGITAL FREMONT INC187 citations97
READ RITE CORP
8 patentsUS6618223B1Sep 9, 2003
High speed, high areal density inductive writer
READ RITE CORP163 citations99
US6468436B1Oct 22, 2002
Method and system for providing a magnetoresistive head having higher efficiency
READ RITE CORP148 citations99
US6418048B1Jul 9, 2002
Spin-dependent tunneling sensor suitable for a magnetic memory
READ RITE CORP213 citations99
US6137661AOct 24, 2000
System for providing a magnetoresistive head having higher efficiency
READ RITE CORP154 citations99
US6552928B1Apr 22, 2003
Read-write control circuit for magnetic tunnel junction MRAM
READ RITE CORP164 citations98
US5986978ANov 16, 1999
Read/write head and method for magnetic reading and magneto-optical writing on a data storage medium
READ RITE CORP116 citations97
US6317297B1Nov 13, 2001
Current pinned dual spin valve with synthetic pinned layers
READ RITE CORP186 citations96
US6512690B1Jan 28, 2003
High sensitivity common source amplifier MRAM cell, memory array and read/write scheme
READ RITE CORP177 citations94
HEADWAY TECHNOLOGIES INC
8 patentsUS5719730AFeb 17, 1998
Low fringe-field and narrow write-track magneto-resistive (MR) magnetic read-write head
HEADWAY TECHNOLOGIES INC83 citations95
US7009266B2Mar 7, 2006
Method and system for providing a magnetic element including passivation structures
HEADWAY TECHNOLOGIES INC37 citations93
US5684658ANov 4, 1997
High track density dual stripe magnetoresistive (DSMR) head
HEADWAY TECHNOLOGIES INC46 citations93
US7613868B2Nov 3, 2009
Method and system for optimizing the number of word line segments in a segmented MRAM array
HEADWAY TECHNOLOGIES INC28 citations90
US7443707B2Oct 28, 2008
Magnetic random access memory array with free layer locking mechanism and method of its use
HEADWAY TECHNOLOGIES INC4 citations63
US7394122B2Jul 1, 2008
Magnetic random access memory array with thin conduction electrical read and write lines
HEADWAY TECHNOLOGIES INC3 citations63
US7394123B2Jul 1, 2008
Magnetic random access memory array with thin conduction electrical read and write lines
HEADWAY TECHNOLOGIES INC2 citations63
US7123506B2Oct 17, 2006
Method and system for performing more consistent switching of magnetic elements in a magnetic memory
HEADWAY TECHNOLOGIES INC2 citations63
MAGIC TECHNOLOGIES INC
5 patentsUS7499314B2Mar 3, 2009
Reference cell scheme for MRAM
MAGIC TECHNOLOGIES INC21 citations92
US7977111B2Jul 12, 2011
Devices using addressable magnetic tunnel junction array to detect magnetic particles
MAGIC TECHNOLOGIES INC7 citations84
US7480172B2Jan 20, 2009
Programming scheme for segmented word line MRAM array
MAGIC TECHNOLOGIES INC15 citations84
US7362644B2Apr 22, 2008
Configurable MRAM and method of configuration
MAGIC TECHNOLOGIES INC17 citations84
US7321507B2Jan 22, 2008
Reference cell scheme for MRAM
MAGIC TECHNOLOGIES INC14 citations84
APPLIED SPINTRONICS INC
4 patentsUS7211874B2May 1, 2007
Magnetic random access memory array with free layer locking mechanism
APPLIED SPINTRONICS INC45 citations96
US7067330B2Jun 27, 2006
Magnetic random access memory array with thin conduction electrical read and write lines
APPLIED SPINTRONICS INC48 citations96
US7184302B2Feb 27, 2007
Highly efficient segmented word line MRAM array
APPLIED SPINTRONICS INC28 citations92
US7180769B2Feb 20, 2007
World line segment select transistor on word line current source side
APPLIED SPINTRONICS INC2 citations58
WANG PO-KANG
3 patentsAPPLIED SPINTRONICS TECH INC
1 patentHEADWAY TECHNOLOGIES
1 patentHEADWAY TECH INC
1 patentShowing the top 50 of 51 patents by PatentIndex Score.