Assignee
WD MEDIA LLC
US54 patents
Top patents by PatentIndex Score
US8817410B1Aug 26, 2014
System and method for improving head positioning
WD MEDIA LLC46 citations96
US8787130B1Jul 22, 2014
Systems and methods for providing heat assisted magnetic recording media configured to couple energy from a near field transducer
WD MEDIA LLC70 citations96
US8787124B1Jul 22, 2014
Systems and methods for extracting Curie temperature distribution in heat assisted magnetic recording media
WD MEDIA LLC62 citations95
US9406329B1Aug 2, 2016
HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers
WD MEDIA LLC21 citations92
US9177585B1Nov 3, 2015
Magnetic media capable of improving magnetic properties and thermal management for heat-assisted magnetic recording
WD MEDIA LLC20 citations92
US8867322B1Oct 21, 2014
Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording media
WD MEDIA LLC20 citations92
US10276201B1Apr 30, 2019
Dual phase MgO-X seed layers for heat assisted magnetic recording media
WD MEDIA LLC7 citations84
US8837065B1Sep 16, 2014
Systems and methods for fast measurement of channel performance metrics such as error margin and off-track recording capability in shingled magnetic recording
WD MEDIA LLC9 citations83
US9824711B1Nov 21, 2017
Soft underlayer for heat assisted magnetic recording media
WD MEDIA LLC11 citations82
US9697859B1Jul 4, 2017
Heat-assisted magnetic recording (HAMR) medium including a bi-layer that enables use of lower laser current in write operations
WD MEDIA LLC11 citations81
US9754618B1Sep 5, 2017
Heat-assisted magnetic recording (HAMR) medium including a split heat-sink structure (SHSS)
WD MEDIA LLC13 citations79
US9990940B1Jun 5, 2018
Seed structure for perpendicular magnetic recording media
WD MEDIA LLC9 citations78
US9296082B1Mar 29, 2016
Disk buffing apparatus with abrasive tape loading pad having a vibration absorbing layer
WD MEDIA LLC8 citations75
US10236026B1Mar 19, 2019
Thermal barrier layers and seed layers for control of thermal and structural properties of HAMR media
WD MEDIA LLC5 citations73
US9542968B1Jan 10, 2017
Single layer small grain size FePT:C film for heat assisted magnetic recording media
WD MEDIA LLC2 citations73
US9047880B1Jun 2, 2015
Heat assisted magnetic recording method for media having moment keeper layer
WD MEDIA LLC4 citations73
US8929008B1Jan 6, 2015
Systems and methods for testing magnetic media disks during manufacturing using sliders with temperature sensors
WD MEDIA LLC4 citations73
US10276199B1Apr 30, 2019
High thermal gradient heatsink for heat assisted magnetic recording media
WD MEDIA LLC5 citations72
US9953665B1Apr 24, 2018
Systems and methods for applying electric fields during ultraviolet exposure of lubricant layers for hard disk media
WD MEDIA LLC4 citations72
US9822441B2Nov 21, 2017
Iridium underlayer for heat assisted magnetic recording media
WD MEDIA LLC6 citations72
US9449633B1Sep 20, 2016
Smooth structures for heat-assisted magnetic recording media
WD MEDIA LLC5 citations72
US9227324B1Jan 5, 2016
Mandrel for substrate transport system with notch
WD MEDIA LLC17 citations72
US8947987B1Feb 3, 2015
Systems and methods for providing capping layers for heat assisted magnetic recording media
WD MEDIA LLC5 citations72
US9818442B2Nov 14, 2017
Magnetic media having improved magnetic grain size distribution and intergranular segregation
WD MEDIA LLC2 citations70
US9685184B1Jun 20, 2017
NiFeX-based seed layer for magnetic recording media
WD MEDIA LLC2 citations70
US9401300B1Jul 26, 2016
Media substrate gripper including a plurality of snap-fit fingers
WD MEDIA LLC14 citations70
US9190094B2Nov 17, 2015
Perpendicular recording media with grain isolation initiation layer and exchange breaking layer for signal-to-noise ratio enhancement
WD MEDIA LLC4 citations69
US8995078B1Mar 31, 2015
Method of testing a head for contamination
WD MEDIA LLC7 citations68
US10121506B1Nov 6, 2018
Magnetic-recording medium including a carbon overcoat implanted with nitrogen and hydrogen
WD MEDIA LLC4 citations66
US9581510B1Feb 28, 2017
Sputter chamber pressure gauge with vibration absorber
WD MEDIA LLC3 citations63
US9459174B1Oct 4, 2016
Bellows leakage tester and methods for testing bellows
WD MEDIA LLC6 citations63
US9123387B1Sep 1, 2015
Magnetic recording drives with active photocatalytic filtration
WD MEDIA LLC2 citations63
US9218850B1Dec 22, 2015
Exchange break layer for heat-assisted magnetic recording media
WD MEDIA LLC3 citations62
US9064521B1Jun 23, 2015
Manufacturing of hard masks for patterning magnetic media
WD MEDIA LLC2 citations62
US9159350B1Oct 13, 2015
High damping cap layer for magnetic recording media
WD MEDIA LLC3 citations61
US9447368B1Sep 20, 2016
Detergent composition with low foam and high nickel solubility
WD MEDIA LLC4 citations60
US11074934B1Jul 27, 2021
Heat assisted magnetic recording (HAMR) media with Curie temperature reduction layer
WD MEDIA LLC1 citations58
US9093122B1Jul 28, 2015
Systems and methods for improving accuracy of test measurements involving aggressor tracks written to disks of hard disk drives
WD MEDIA LLC2 citations58
US9406330B1Aug 2, 2016
Method for HDD disk defect source detection
WD MEDIA LLC4 citations56
US9275669B1Mar 1, 2016
TbFeCo in PMR media for SNR improvement
WD MEDIA LLC2 citations53
US9123373B1Sep 1, 2015
Electrochemical etching of magnetic recording layer
WD MEDIA LLC0 citations52
US9042053B1May 26, 2015
Thermally stabilized perpendicular magnetic recording medium
WD MEDIA LLC1 citations52
US9984715B2May 29, 2018
Magnetic disk and manufacturing method thereof
WD MEDIA LLC0 citations51
US9025264B1May 5, 2015
Methods for measuring media performance associated with adjacent track interference
WD MEDIA LLC1 citations51
US9548073B1Jan 17, 2017
Systems and methods for providing high performance soft magnetic underlayers for magnetic recording media
WD MEDIA LLC0 citations50
US9389135B2Jul 12, 2016
Systems and methods for calibrating a load cell of a disk burnishing machine
WD MEDIA LLC2 citations50
US9431045B1Aug 30, 2016
Magnetic seed layer used with an unbalanced soft underlayer
WD MEDIA LLC1 citations49
US9339978B1May 17, 2016
Press system with interleaved embossing foil holders for nano-imprinting of recording media
WD MEDIA LLC0 citations49
US9296022B1Mar 29, 2016
Sonication cleaning system
WD MEDIA LLC1 citations49
US9177601B1Nov 3, 2015
Multiple cleaning processes in a single tank
WD MEDIA LLC0 citations47
Showing the top 50 of 54 patents by PatentIndex Score.