P

Inventor

CHEN YINGJIAN

US79 patents
⚠️ This page may combine multiple inventors who share the name “CHEN YINGJIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WESTERN DIGITAL FREMONT INC

18 patents
US7177117B1Feb 13, 2007

Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel for magnetic head pole layers

WESTERN DIGITAL FREMONT INC171 citations99
US7027274B1Apr 11, 2006

Spin-dependent tunneling read/write sensor for hard disk drives

WESTERN DIGITAL FREMONT INC153 citations99
US7007372B1Mar 7, 2006

Method for making high speed, high areal density inductive write structure

WESTERN DIGITAL FREMONT INC153 citations99
US6940688B2Sep 6, 2005

Coil inductive writer having a low inductance and short yoke length

WESTERN DIGITAL FREMONT INC153 citations99
US6934113B1Aug 23, 2005

Method and system for providing dynamic actuation of a write head using a strain element

WESTERN DIGITAL FREMONT INC158 citations99
US6912106B1Jun 28, 2005

Writer with a hot seed zero throat and substantially flat top pole

WESTERN DIGITAL FREMONT INC182 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
US6873494B2Mar 29, 2005

Write head with high moment film layer having tapered portion extending beyond write gap layer

WESTERN DIGITAL FREMONT INC148 citations99
US6870712B2Mar 22, 2005

Inductive writer with flat top pole and pedestal defined zero throat

WESTERN DIGITAL FREMONT INC171 citations99
US6809899B1Oct 26, 2004

Magnetic heads for perpendicular recording with trapezoidal pole tips

WESTERN DIGITAL FREMONT INC266 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
US6778358B1Aug 17, 2004

Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel

WESTERN DIGITAL FREMONT INC217 citations99
US6724569B1Apr 20, 2004

Thin film writer with multiplayer write gap

WESTERN DIGITAL FREMONT INC161 citations99
US7113366B1Sep 26, 2006

Double-nosed inductive transducer with reduced off-track writing

WESTERN DIGITAL FREMONT INC156 citations98
US6958885B1Oct 25, 2005

Insulation layer structure for inductive write heads and method of fabrication

WESTERN DIGITAL FREMONT INC150 citations98
US6943993B2Sep 13, 2005

Magnetic recording head with a side shield structure for controlling side reading of thin film read sensor

WESTERN DIGITAL FREMONT INC189 citations98
US6737281B1May 18, 2004

Method of making transducer with inorganic nonferromagnetic apex region

WESTERN DIGITAL FREMONT INC179 citations98

WESTERN DIGITAL FREMONT LLC

17 patents
US7968219B1Jun 28, 2011

Magnetically soft, high saturation magnetization laminate of iron-cobalt-nitrogen and iron-nickel for perpendicular media underlayers

WESTERN DIGITAL FREMONT LLC151 citations99
US7819979B1Oct 26, 2010

Method and system for cleaning magnetic artifacts using a carbonyl reactive ion etch

WESTERN DIGITAL FREMONT LLC154 citations99
US7691434B1Apr 6, 2010

Method for fabricating magnetoresistive read head having a bias structure with at least one dusting layer

WESTERN DIGITAL FREMONT LLC149 citations99
US7639457B1Dec 29, 2009

Magnetic sensor with underlayers promoting high-coercivity, in-plane bias layers

WESTERN DIGITAL FREMONT LLC161 citations99
US7554767B1Jun 30, 2009

Electrical lapping guide disposed laterally relative to a shield pedestal

WESTERN DIGITAL FREMONT LLC167 citations99
US7522377B1Apr 21, 2009

Magnetic write head with high moment magnetic thin film formed over seed layer

WESTERN DIGITAL FREMONT LLC183 citations99
US7419891B1Sep 2, 2008

Method and system for providing a smaller critical dimension magnetic element utilizing a single layer mask

WESTERN DIGITAL FREMONT LLC161 citations99
US7375926B1May 20, 2008

Inductive writer design using a soft magnetic pedestal having a high magnetic saturation layer

WESTERN DIGITAL FREMONT LLC151 citations99
US7354664B1Apr 8, 2008

Magnetically soft, high saturation magnetization laminate of iron-cobalt-nitrogen and iron-nickel for perpendicular media underlayers

WESTERN DIGITAL FREMONT LLC162 citations99
US7342752B1Mar 11, 2008

Magnetoresistive read head having a bias structure with at least one dusting layer

WESTERN DIGITAL FREMONT LLC155 citations99
US7310204B1Dec 18, 2007

Inductive writer design for using a soft magnetic pedestal having a high magnetic saturation layer

WESTERN DIGITAL FREMONT LLC171 citations99
US7296339B1Nov 20, 2007

Method for manufacturing a perpendicular magnetic recording head

WESTERN DIGITAL FREMONT LLC168 citations99
US7289303B1Oct 30, 2007

Spin valve sensors having synthetic antiferromagnet for longitudinal bias

WESTERN DIGITAL FREMONT LLC151 citations99
US8018677B1Sep 13, 2011

Magnetic recording head formed by damascene process

WESTERN DIGITAL FREMONT LLC162 citations98
US7672080B1Mar 2, 2010

Laminated perpendicular writer head including amorphous metal

WESTERN DIGITAL FREMONT LLC156 citations98
US7444740B1Nov 4, 2008

Damascene process for fabricating poles in recording heads

WESTERN DIGITAL FREMONT LLC198 citations98
US7286329B1Oct 23, 2007

GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers

WESTERN DIGITAL FREMONT LLC150 citations98

READ RITE CORP

3 patents

LUO GUANGHONG

2 patents

YANG DANNING

2 patents

SHEN YONG

2 patents

CHEN YINGJIAN

1 patent

(unassigned)

1 patent

JIANG HAI

1 patent

LI YUN-FEI

1 patent

CHEN BENJAMIN

1 patent

WESTERN DIGITAL INC

1 patent

Showing the top 50 of 79 patents by PatentIndex Score.