Inventor
ZHANG JINQIU
US48 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG JINQIU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTERN DIGITAL FREMONT LLC
15 patentsUS8018678B1Sep 13, 2011
Method for simultaneous electronic lapping guide (ELG) and perpendicular magnetic recording (PMR) pole formation
WESTERN DIGITAL FREMONT LLC157 citations99
US7639457B1Dec 29, 2009
Magnetic sensor with underlayers promoting high-coercivity, in-plane bias layers
WESTERN DIGITAL FREMONT LLC161 citations99
US7284316B1Oct 23, 2007
Method for forming a hard bias structure in a magnetoresistive sensor
WESTERN DIGITAL FREMONT LLC162 citations99
US8760807B1Jun 24, 2014
Method for providing a wraparound shield for a magnetic recording transducer using a damascene process
WESTERN DIGITAL FREMONT LLC130 citations98
US7286329B1Oct 23, 2007
GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers
WESTERN DIGITAL FREMONT LLC150 citations98
US9305583B1Apr 5, 2016
Method for fabricating a magnetic writer using multiple etches of damascene materials
WESTERN DIGITAL FREMONT LLC17 citations83
US8988825B1Mar 24, 2015
Method for fabricating a magnetic writer having half-side shields
WESTERN DIGITAL FREMONT LLC5 citations73
US9343087B1May 17, 2016
Method for fabricating a magnetic writer having half shields
WESTERN DIGITAL FREMONT LLC2 citations63
US10115416B2Oct 30, 2018
Magnetic recording write apparatus having a pole having an aspect ratio greater than one and an auxiliary pole
WESTERN DIGITAL FREMONT LLC1 citations52
US8879207B1Nov 4, 2014
Method for providing a side shield for a magnetic recording transducer using an air bridge
WESTERN DIGITAL FREMONT LLC1 citations52
US9940951B2Apr 10, 2018
PMR writer with non-conformal side gaps
WESTERN DIGITAL FREMONT LLC0 citations51
US9280990B1Mar 8, 2016
Method for fabricating a magnetic writer using multiple etches
WESTERN DIGITAL FREMONT LLC1 citations51
US9275657B1Mar 1, 2016
Process for making PMR writer with non-conformal side gaps
WESTERN DIGITAL FREMONT LLC1 citations51
US9263067B1Feb 16, 2016
Process for making PMR writer with constant side wall angle
WESTERN DIGITAL FREMONT LLC0 citations49
US10037770B1Jul 31, 2018
Method for providing a magnetic recording write apparatus having a seamless pole
WESTERN DIGITAL FREMONT LLC0 citations35
ZHANG JINQIU
12 patentsUS8649123B1Feb 11, 2014
Method to eliminate reactive ion etching (RIE) loading effects for damascene perpendicular magnetic recording (PMR) fabrication
ZHANG JINQIU147 citations99
US8451563B1May 28, 2013
Method for providing a side shield for a magnetic recording transducer using an air bridge
ZHANG JINQIU158 citations99
US8334093B2Dec 18, 2012
Method and system for providing a perpendicular magnetic recording head
ZHANG JINQIU150 citations99
US8310785B1Nov 13, 2012
Perpendicular magnetic recording head
ZHANG JINQIU147 citations99
US8225488B1Jul 24, 2012
Method for providing a perpendicular magnetic recording (PMR) pole
ZHANG JINQIU160 citations99
US8196285B1Jun 12, 2012
Method and system for providing a pole for a perpendicular magnetic recording head using a multi-layer hard mask
ZHANG JINQIU161 citations99
US8166632B1May 1, 2012
Method for providing a perpendicular magnetic recording (PMR) transducer
ZHANG JINQIU154 citations99
US8136225B1Mar 20, 2012
Method and system for providing a perpendicular magnetic recording head
ZHANG JINQIU153 citations99
US8793866B1Aug 5, 2014
Method for providing a perpendicular magnetic recording head
ZHANG JINQIU143 citations98
US8104166B1Jan 31, 2012
Self-aligned method for fabricating a high density GMR read element
ZHANG JINQIU154 citations98
US8563146B1Oct 22, 2013
Method and system for providing a magnetic recording pole having a dual sidewall angle
ZHANG JINQIU151 citations97
US9346672B1May 24, 2016
Methods for fabricating damascene write poles using ruthenium hard masks
ZHANG JINQIU5 citations73
WESTERN DIGITAL (FREMONT) LLC
5 patentsUS9721591B1Aug 1, 2017
Magnetic recording write apparatus having a pole having an aspect ratio greater than one and an auxiliary pole
WESTERN DIGITAL (FREMONT) LLC2 citations73
US9711168B1Jul 18, 2017
Method for providing a magnetic recording write apparatus by predefining side shields
WESTERN DIGITAL (FREMONT) LLC2 citations73
US9741366B1Aug 22, 2017
Method for fabricating a magnetic writer having a gradient in saturation magnetization of the shields
WESTERN DIGITAL (FREMONT) LLC1 citations52
US9595273B1Mar 14, 2017
Shingle magnetic writer having nonconformal shields
WESTERN DIGITAL (FREMONT) LLC0 citations52
US9431038B1Aug 30, 2016
Method for fabricating a magnetic write pole having an improved sidewall angle profile
WESTERN DIGITAL (FREMONT) LLC0 citations40
SANDISK TECHNOLOGIES LLC
3 patentsUS10460750B1Oct 29, 2019
Plating based pre-defined side shield and application in magnetic head
SANDISK TECHNOLOGIES LLC7 citations84
US11626129B2Apr 11, 2023
Plating based side shield define and application in magnetic head
SANDISK TECHNOLOGIES LLC0 citations63
US10714125B2Jul 14, 2020
Method of manufacturing a magnetic recording head
SANDISK TECHNOLOGIES LLC1 citations63