Patents-Review.com
ClassID:

197666 ⎘

G11B2005/001 - CPC Classification

Classification description:

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Special dispositions or recording techniques; Arrangements, methods or circuits Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure

Sub-classes:
Recent Application in this class:
#1
20240203449
2024-06-20

System controlled RF signal source architecture with transducer near pole-tip for microwave assisted magnetic recording

 #2
20240096349
2024-03-21

Magnetic disk device and method of adjusting preheat time

 #3
20230298621
2023-09-21

Data storage device pre-biasing write current for energy assisted magnetic recording

 #4
20230088609
2023-03-23

Magnetic disk apparatus and method

 #5
20220343943
2022-10-27

Data storage device pre-biasing write current for energy assisted magnetic recording

 #6
20220208218
2022-06-30

RECORDING DEVICE, RECORDING METHOD, RECORDING PROGRAM, AND MAGNETIC TAPE

 #7
20220108717
2022-04-07

Selectively activating microactuators on a head gimbal assembly

 #8
20210407546
2021-12-30

Method and apparatus for modulating a laser power signal during heat-assisted magnetic recording

 #9
20210366517
2021-11-25

Magnetic disk device having first and second assist elements and write operation method

 #10
20210090605
2021-03-25

Magnetic disk device having first and second assist elements and write operation method

 #11
20200265867
2020-08-20

Magnetic disk device capable of setting recording condition using servo pattern

 #12
20200202892
2020-06-25

Tape head with element-to-element spacing and adjustment and mechanism to control the spacing

 #13
20200168247
2020-05-28

Data storage device reverse biasing head element to counter electro-migration

 #14
20190295580
2019-09-26

Data storage device reverse biasing head element to counter electro-migration

 #15
20190013042
2019-01-10

Magnetic recording and reproducing device

 #16
20180277151
2018-09-27

Magnetic disk device, controller, and method

 #17
20180239853
2018-08-23

RECORDING MEDIUM RECORDING MAGNETIC MATERIAL SIMULATION PROGRAM, MAGNETIC MATERIAL SIMULATION METHOD AND INFORMATION PROCESSING APPARATUS

 #18
20170243607
2017-08-24

Thermally-assisted magnetic recording head including a main pole and a plasmon generator

 #19
20160267930
2016-09-15

Defining a maximum sequential write duration for a data storage device utilizing heat-assisted recording

 #20
20150380035
2015-12-31

Head gimbals assembly, method for manufacturing thermal-assisted magnetic recording and manufacturing equipment of thermal-assisted magnetic recording

 #21
20150340053
2015-11-26

Heat assisted media recording apparatus with laser diode mode hopping suppression

 #22
20150340051
2015-11-26

Laser array for heat assisted magnetic recording

 #23
20150310881
2015-10-29

Magnetic recording head and magnetic recording apparatus

 #24
20150310880
2015-10-29

Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method

 #25
20150295384
2015-10-15

Isolator element for heat-assisted magnetic recording

 #26
20150154988
2015-06-04

Head gimbals assembly, method for manufacturing thermal-assisted magnetic recording and manufacturing equipment of thermal-assisted magnetic recording

 #27
20150146507
2015-05-28

Submount-integrated photodetector for monitoring a laser for a heat-assisted magnetic recording head

 #28
20140233131
2014-08-21

Protecting information written to recording medium

 #29
20140198410
2014-07-17

Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method

 #30
20140146420
2014-05-29

Magnetic head, magnetic head assembly, and magnetic recording/reproduction apparatus

 #31
20140126077
2014-05-08

Programmable analog feed-forward timer for dynamic wave shaping

 #32
20130335847
2013-12-19

Microwave assisted magnetic recording and magnetic storage device

 #33
20130328547
2013-12-12

Current shunt

 #34
20130294207
2013-11-07

Light source power control for heat assisted magnetic recording (HAMR)

 #35
20130258517
2013-10-03

Reduction of degradation of magnetic tape apparatus

 #36
20130163111
2013-06-27

Magnetic data recording system with improved servo capability for bit patterned recording

 #37
20130100551
2013-04-25

Method and apparatus for reflection cancellation

 #38
20130003511
2013-01-03

Discrete track media (DTM) design and fabrication for heat assisted magnetic recording (HAMR)

 #39
20120314547
2012-12-13

HAMR recording head having a sloped wall pole

 #40
20120301746
2012-11-29

Radiator-cooled nanowire-based write assist

 #41
20120269048
2012-10-25

Method of manufacturing heat-assisted magnetic recording head with internal mirror

 #42
20120257489
2012-10-11

Recording/reproducing apparatus and recording/producing system

 #43
20120257299
2012-10-11

Magnetic recording/reproducing apparatus and method for determining magnetic recording condition

 #44
20120250485
2012-10-04

Recording/reproducing apparatus and recording/producing system

 #45
20120224283
2012-09-06

Three-dimensional magnetic recording and reproducing apparatus including a plurality of magnetic layers having different resonant frequencies

 #46
20120195341
2012-08-02

System, method and apparatus for internal polarization rotation for horizontal cavity, surface emitting laser beam for thermally assisted recording in disk drive

 #47
20120182842
2012-07-19

Thermal-assisted-magnetic-recording head having core cover layer

 #48
20120176699
2012-07-12

Magnetic reading and writing device

 #49
20120155232
2012-06-21

Directional waveguide coupler for ABS reflected light

 #50
20120147498
2012-06-14

HEAD IC AND MAGNETIC DISK APPARATUS HAVING MICROWAVE ASSISTANCE FUNCTION

 #51
20120134246
2012-05-31

Method for controlling the current of laser diode on thermally assisted magnetic recording head

 #52
20120134245
2012-05-31

Magnetic recording device, controller thereof, and magnetic recording method

 #53
20120113771
2012-05-10

Heat-assisted recording head and heat-assisted recording device

 #54
20120113540
2012-05-10

Modified field generation layer for microwave assisted magnetic recording

 #55
20120105996
2012-05-03

Thermally assisted magnetic write head employing a near field transducer (NFT) having a diffusion barrier layer between the near field transducer and a magnetic lip

 #56
20120092971
2012-04-19

Thermally-assisted magnetic recording head having main waveguide and sub-waveguides

 #57
20120090162
2012-04-19

Method for manufacturing head including light source unit for thermal assist

 #58
20120084969
2012-04-12

Method of manufacturing thermal assisted magnetic write head

 #59
20120051196
2012-03-01

Near-field transducer with thermal sensor and system for clocking write data in a patterned-media magnetic recording disk drive

 #60
20120051195
2012-03-01

Thermally-assisted recording head and magnetic recording system

 #61
20120039155
2012-02-16

Hybrid near-field transducer for heat assisted magnetic recording

 #62
20120020195
2012-01-26

Transducer assembly having grating slits parallel to longitudinal axis of waveguide

 #63
20120002331
2012-01-05

MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING APPARATUS

 #64
20110310713
2011-12-22

Thermally assisted head having reflection mirror for propagating light

 #65
20110294398
2011-12-01

Method for providing an electronic lapping guide corresponding to a near-field transducer of an energy assisted magnetic recording transducer

 #66
20110292773
2011-12-01

Thermally-assisted magnetic recording head capable of reducing the transient protrusion of an antenna

 #67
20110292772
2011-12-01

Thermal assisted head using curved wave guide

 #68
20110292544
2011-12-01

HEAD IC AND MAGNETIC DISK APPARATUS HAVING MICROWAVE ASSISTANCE FUNCTION

 #69
20110292537
2011-12-01

3-D self-focusing gap plasmon generator for TAMR

 #70
20110286127
2011-11-24

Near field transducer with shaped energy radiating end

 #71
20110249357
2011-10-13

Protecting information written to recording medium

 #72
20110242697
2011-10-06

Method for aligning the light source unit and the slider of thermally-assisted magnetic recording head

 #73
20110235205
2011-09-29

Laminated exchange coupling adhesion (LECA) media for heat assisted magnetic recording

 #74
20110228652
2011-09-22

Slider for heat assisted magnetic recording including a photo detector for monitoring laser power

 #75
20110228651
2011-09-22

Slider for heat assisted magnetic recording including a thermal sensor for monitoring laser power

 #76
20110228650
2011-09-22

Method for manufacturing thermally-assisted magnetic recording head comprising light source unit and slider

 #77
20110228649
2011-09-22

Method for manufacturing thermally-assisted magnetic recording head comprising light source unit and slider

 #78
20110228420
2011-09-22

Heat-assisted magnetic recording head including plasmon generator

 #79
20110228419
2011-09-22

Heat-assisted magnetic recording head including plasmon generator

 #80
20110228418
2011-09-22

Heat-assisted magnetic recording head with near-field light generating element

 #81
20110228417
2011-09-22

Heat-assisted magnetic recording head with near-field light generating element

 #82
20110222185
2011-09-15

Magnetic recording apparatus provided with microwave-assisted head

 #83
20110217003
2011-09-08

Waveguide For Heat Assisted Magnetic Recording

 #84
20110216436
2011-09-08

Information recording device having high-frequency field generating multilayer material with a receded section disposed between main and opposing poles

 #85
20110211271
2011-09-01

TRAPPING ELECTRON ASSISTED MAGNETIC RECORDING SYSTEM AND METHOD

 #86
20110205866
2011-08-25

Near field light generator, optical recording head and optical recording apparatus

 #87
20110205861
2011-08-25

Light source power control for heat assisted magnetic recording (HAMR)

 #88
20110205860
2011-08-25

Heat-assisted magnetic recording head including plasmon generator

 #89
20110205660
2011-08-25

Thermal assisted magnetic recording head having spot size converter

 #90
20110199867
2011-08-18

All-optical magnetic recording system using circularly polarized light and bit-patterned media

 #91
20110181979
2011-07-28

Shaped plasmon generators for thermally-assisted magnetic recording

 #92
20110157738
2011-06-30

Method for manufacturing thermally-assisted magnetic recording head by semi-active alignment

 #93
20110149698
2011-06-23

Thermally assisted magnetic recording head and head assembly

 #94
20110149427
2011-06-23

Suppressing adjacent track interference/far track interference (ATI/FTI) in a hard disk drive (HDD) by an external magnetic field

 #95
20110149426
2011-06-23

Heat-assisted magnetic recording head including internal mirrors of first and second inclined surfaces

 #96
20110141861
2011-06-16

Near-field light head and information recording/reproducing device

 #97
20110141610
2011-06-16

Write synchronization in patterned magnetic media

 #98
20110134561
2011-06-09

Perpendicular magnetic recording write head and system with improved spin torque oscillator for microwave-assisted magnetic recording

 #99
20110132868
2011-06-09

Polishing composition for polishing silver and alumina, and polishing method using the same

 #100
20110128827
2011-06-02

Light source unit for thermally-assisted magnetic recording including dual electrode layers connected to a unit electrode

 #101
20110128646
2011-06-02

Synchronized rewriting of data

 #102
20110122759
2011-05-26

Data Recording Apparatus and System Having Sustained High Transfer Rates

 #103
20110122754
2011-05-26

Deflection optical element, optical recording head and optical recording apparatus

 #104
20110122738
2011-05-26

Thermally-assisted magnetic recording head having photoelectric wiring lines integrally formed on waveguide

 #105
20110122737
2011-05-26

Thermally-assisted magnetic recording head with light detector in element-integration surface

 #106
20110122736
2011-05-26

Near-field optical head and information recording/reproducing device

 #107
20110110202
2011-05-12

Thermally-assisted magnetic recording head comprising near-field optical device with propagation edge

 #108
20110103201
2011-05-05

Light delivery waveguide

 #109
20110102930
2011-05-05

Waveform based bit detection for bit patterned media

 #110
20110096435
2011-04-28

Heat-assisted magnetic recording head with laser diode fixed to slider

 #111
20110090770
2011-04-21

Thermal-assisted-magnetic-recording head having a high refractive index core and multiple thin film cores, and magnetic recording system using the thermal-assisted-magnetic-recording head

 #112
20110090603
2011-04-21

MAMR head with self-aligned write element and microwave field generator

 #113
20110090594
2011-04-21

Device for generating high frequency magnetic fields in a rest-frame of a magnetic medium

 #114
20110090587
2011-04-21

Thermally-assisted magnetic recording head with plane-emission type light source

 #115
20110085425
2011-04-14

Waveguide, recording head, and recording device

 #116
20110058273
2011-03-10

Heat-assisted magnetic recording head with laser diode fixed to slider

 #117
20110043943
2011-02-24

Microwave assisted magnetic recording head and microwave assisted magnetic recording apparatus having a magnetic flux rectifying layer with a magnetic flux rectifying action

 #118
20110038236
2011-02-17

Near-field light transducer comprising propagation edge with predetermined curvature radius

 #119
20110038081
2011-02-17

Perpendicular magnetic recording system with spin torque oscillator and control circuitry for fast switching of write pole magnetization

 #120
20110038071
2011-02-17

Method of operating pre-amplifier, pre-amplifier, and apparatuses including the same

 #121
20110026379
2011-02-03

Heat-assisted magnetic recording head with laser diode

 #122
20110026378
2011-02-03

Heat-assisted magnetic recording head having laser diode overlaping two recording wiring layers

 #123
20110026377
2011-02-03

Thermally-assisted magnetic recording head comprising light source with photonic-band layer

 #124
20110026156
2011-02-03

Heat-assisted magnetic recording head with laser diode

 #125
20110019305
2011-01-27

MAGNETIC STORAGE DEVICE

 #126
20110013497
2011-01-20

Heat-assisted magnetic recording head with laser diode fixed to slider

 #127
20110013304
2011-01-20

Signal reproducing method, magnetic head and magnetic recording and reproducing apparatus

 #128
20110007621
2011-01-13

Near field optical head and information recording and reproducing device

 #129
20100322043
2010-12-23

Flexible waveguide with adjustable index of refraction

 #130
20100296194
2010-11-25

Transducing head design for microwave assisted magnetic recording

 #131
20100290323
2010-11-18

Near-field light generating device including near-field light generating element with edge part opposed to waveguide

 #132
20100284102
2010-11-11

MAGNETIC RECORDING DEVICE WITH AN INTEGRATED MICROELECTRONIC DEVICE

 #133
20100277827
2010-11-04

Correcting errors in position of an HDD write-head

 #134
20100254042
2010-10-07

Perpendicular magnetic recording system with auxiliary coil and circuitry for fast switching of write pole magnetization

 #135
20100254041
2010-10-07

Perpendicular magnetic recording system with helical write coil and auxiliary coil for fast switching of write pole magnetization

 #136
20100238580
2010-09-23

Thermally-assisted magnetic recording head having a light source at least inclined from an opposed-to-medium surface

 #137
20100232281
2010-09-16

Optical recording head and optical recording apparatus

 #138
20100232053
2010-09-16

Method and apparatus for controlling head with spin-torque oscillator in a disk drive

 #139
20100232050
2010-09-16

Power control of TAMR element during read/write transition

 #140
20100214684
2010-08-26

Discrete track media (DTM) design and fabrication for heat assisted magnetic recording (HAMR)

 #141
20100208379
2010-08-19

Thin-film magnetic head having microwave magnetic exciting function and magnetic recording and reproducing apparatus

 #142
20100208378
2010-08-19

Heat assisted magnetic recording apparatus having a plurality of near-field transducers in a recording media

 #143
20100202081
2010-08-12

Thermal-assisted magnetic recording head having substrate and light reflection section

 #144
20100195450
2010-08-05

Magnetic recording head having a flexible heat-conductive member of predetermined curvature

 #145
20100172220
2010-07-08

Near-field light generating element comprising surface plasmon antenna and waveguide with groove

 #146
20100165802
2010-07-01

Ridge wave-guide for thermal assisted magnetic recording

 #147
20100165801
2010-07-01

System, method and apparatus for internal polarization rotation for horizontal cavity, surface emitting laser beam for thermally assisted recording in disk drive

 #148
20100165499
2010-07-01

Near field transducer having main body and wings extending therefrom and only electrically coupled thereby

 #149
20100157747
2010-06-24

Recording/reproduction apparatus and recording/reproduction system

 #150
20100157746
2010-06-24

Recording/reproducing apparatus and recording/reproducing system

 #151
20100157745
2010-06-24

Optically assisted magnetic recording head having a waveguide core with a plate-shaped portion protruding from an air bearing surface side of the core

 #152
20100149930
2010-06-17

Near-field light generating element comprising surface plasmon antenna with surface or edge opposed to waveguide

 #153
20100134922
2010-06-03

Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method

 #154
20100128577
2010-05-27

Near-field light generating device and optically-assisted magnetic recording device with absorbing waveguide

 #155
20100128576
2010-05-27

INTEGRATED MAGNETIC RECORDING HEAD AND NEAR FIELD LASER

 #156
20100128382
2010-05-27

Magnetic recording device and magnetic recording method thereof

 #157
20100128377
2010-05-27

Electric field assisted magnetic recording

 #158
20100118664
2010-05-13

Near field light generating device, optically assisted magnetic recording head, optically assisted magnetic recording device, near field optical microscope and near field light exposure apparatus

 #159
20100103553
2010-04-29

Near-field light generating element utilizing surface plasmon

 #160
20100097918
2010-04-22

Optical recording head, optical recording head manufacturing method and recording/reproducing device

 #161
20100097716
2010-04-22

Head slider, head assembly, and magnetic disk device

 #162
20100091619
2010-04-15

Near-field optical head with inclined magnetic poles and information recording/reproducing device

 #163
20100079912
2010-04-01

MAGNETIC RECORDING DEVICE AND MAGNETIC RECORDING METHOD

 #164
20100073817
2010-03-25

Plasmon antenna for thermally assisted magnetic head

 #165
20100073804
2010-03-25

Thin-film magnetic head having microwave magnetic exciting function and magnetic recording and reproducing apparatus

 #166
20100073803
2010-03-25

Magnetic recording device and magnetic recording head drive mechanism having a magnetic applying section of a specific length

 #167
20100073802
2010-03-25

Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereof

 #168
20100053812
2010-03-04

Magnetic head having a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer

 #169
20100053811
2010-03-04

Magnetic storage apparatus having heated recording head

 #170
20100046889
2010-02-25

Apparatus and method for coupling light to a thin film optical waveguide

 #171
20100046331
2010-02-25

Planar plasmon antenna for use in near-field recording

 #172
20100046111
2010-02-25

Recording head and data recording and reproducing apparatus

 #173
20100033865
2010-02-11

Near-field recording device having heating mechanism positioned near a trailing side of a magnetic pole

 #174
20100027161
2010-02-04

Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium

 #175
20100014180
2010-01-21

Magnetic disk apparatus and recording method

 #176
20100002330
2010-01-07

Thermally assisted recording head control means for protrusion management

 #177
20090323223
2009-12-31

Head gimbal mechanism and information recording/reproducing apparatus

 #178
20090303629
2009-12-10

Magnetic recording/reproducing apparatus and method for determining magnetic recording condition

 #179
20090290267
2009-11-26

Magnetic recording and reproducing apparatus with thin-film magnetic head having microwave magnetic exciting function

 #180
20090262636
2009-10-22

WIRE-ASSISTED MAGNETIC WRITE DEVICE INCLUDING MULTIPLE WIRE ASSIST CONDUCTORS

 #181
20090262457
2009-10-22

Microwave assisted magnetic recording system

 #182
20090257324
2009-10-15

Flexible waveguide with adjustable index of refraction

 #183
20090245034
2009-10-01

Optical device, optically heat assisted magnetic recording head and optically heat assisted magnetic recording apparatus, having intensity point deviated from axis of the core

 #184
20090244780
2009-10-01

Magnetic Recording Medium and Recording/Reproducing Apparatus Therefor

 #185
20090225465
2009-09-10

Magnetic recording head and magnetic recording apparatus

 #186
20090208171
2009-08-20

Waveguide for heat assisted magnetic recording

 #187
20090196127
2009-08-06

Optical recording head and optical recording apparatus

 #188
20090128944
2009-05-21

Hard disk drive tunneling magnetoresistive annealing heads with a fly on demand heater

 #189
20090109570
2009-04-30

Wire and wire lead designs for a wire-assisted magnetic write device

 #190
20090103401
2009-04-23

MAGNETIC RECORDING MEDIUM, PRODUCTION METHOD FOR THE SAME, AND RECORDING/REPRODUCING METHOD FOR MAGNETIC MEDIUM

 #191
20090086354
2009-04-02

Signal reproducing method, magnetic head and magnetic recording and reproducing apparatus

 #192
20090073858
2009-03-19

HAMR recording head having a sloped wall pole

 #193
20090059411
2009-03-05

Semiconductor laser device structure, thermally assisted magnetic head, and method of manufacturing same

 #194
20090059410
2009-03-05

Frictional heat assisted recording

 #195
20090052076
2009-02-26

Thermally assisted magnetic head with optical waveguide

 #196
20090040646
2009-02-12

Thermally assisted recording system

 #197
20090040644
2009-02-12

Laminated Exchange Coupling Adhesion (LECA) Media For Heat Assisted Magnetic Recording

 #198
20090028007
2009-01-29

Near-field optical head and information recording apparatus

 #199
20090015959
2009-01-15

Thermally assisted magnetic recording system and thermally assisted magnetic recording

 #200
20090009903
2009-01-08

Method of increasing recording density of hard disc drive and controlling device thereof

 #201
20080304176
2008-12-11

Magnetic recording head with spin oscillation device and magnetic recording apparatus including the magnetic recording head

 #202
20080239563
2008-10-02

Methods and apparatus for temperature compensation for hard disk drive write overshoot current

 #203
20080239558
2008-10-02

METHODS AND APPARATUS FOR DURATION CONTROL OF HARD DRIVE WRITE SIGNALS

 #204
20080225673
2008-09-18

Information recording device and head

 #205
20080218891
2008-09-11

Magnetic recording device with an integrated microelectronic device

 #206
20080158730
2008-07-03

Head stack assembly and information recording apparatus

 #207
20080151406
2008-06-26

Storage apparatus, method of controlling amount of write current overshoot in storage apparatus and storage medium storing its program

 #208
20080137224
2008-06-12

High frequency field assisted write device

 #209
20080123219
2008-05-29

Light delivery technique for heat assisted magnetic recording head

 #210
20080123217
2008-05-29

Storage apparatus, storage medium, and control method and program of storage apparatus

 #211
20080112085
2008-05-15

Write through drivers for disk drive systems

 #212
20080068937
2008-03-20

Electric field applying magnetic recording method and magnetic recording system

 #213
20080049563
2008-02-28

Optical element and optical head

 #214
20080049357
2008-02-28

Thermally assisted magnetic recording system

 #215
20080043358
2008-02-21

Controlling an overshoot amplitude level based on a recording data pattern in a magnetic disk drive

 #216
20080014456
2008-01-17

PROCESS OF PRODUCING MASTER CARRIER FOR MAGNETIC TRANSFER

 #217
20080002272
2008-01-03

Object based storage device with storage medium having varying media characteristics

 #218
20070297081
2007-12-27

Magnetic device for current assisted magnetic recording

 #219
20070296362
2007-12-27

Prevention of concurrent PWM or PSM commutations of power signals driving a voice coil motor (VCM) to reduce S/N ratio degradation of low level signal lines of a R/W head

 #220
20070279780
2007-12-06

METHOD AND APPARATUS TO OPTIMIZE WRITE CURRENT IN A WRITE HEAD

 #221
20070206313
2007-09-06

Magnetic disk apparatus

 #222
20070165320
2007-07-19

Reverse write current preshoot

 #223
20070160876
2007-07-12

Magnetic recording medium

 #224
20070159718
2007-07-12

Heat-assisted magnetic recording head and method of manufacturing the same

 #225
20070157458
2007-07-12

Techniques for certifying a head-gimbal assembly

 #226
20070153417
2007-07-05

Heat-assisted magnetic recording head

 #227
20070146922
2007-06-28

Write current boosted head amplifier

 #228
20070145971
2007-06-28

Magnetic head and disk X-Y test assembly with optimized arrangement for skew angle

 #229
20070139818
2007-06-21

Thin-film magnetic head with near-field-light-generating layer

 #230
20070136624
2007-06-14

Failure recovering method and recording apparatus

 #231
20070127150
2007-06-07

Apparatus and method for adaptively adjusting recording density of a disk utilizing a trapezoidal shaped magnetic head

 #232
20070115575
2007-05-24

Recording current optimization method of hard disk drive, recording medium storing program to execute the method and apparatus employing the same

 #233
20070109919
2007-05-17

Light-condensing head and storage apparatus

 #234
20070076319
2007-04-05

Recording method for magnetic recording medium, recording device for magnetic recording medium and magnetic recording medium

 #235
20070070549
2007-03-29

Magnetic recording disk having a transition zone

 #236
20070070541
2007-03-29

Magnetic recording disk having a transition zone

 #237
20070057666
2007-03-15

Defect inspection system and method for recording media

 #238
20070046286
2007-03-01

Magnetic head tester and method of manufacturing magnetic disk drive

 #239
20070041114
2007-02-22

Data loss prevention method of a media storage device and media storage device

 #240
20070040552
2007-02-22

Spin stand

 #241
20070036040
2007-02-15

Dual wire integrated WAMR/HAMR writing head

 #242
20070024276
2007-02-01

System, method, and apparatus for detecting signal-to-noise ratio decay in perpendicular magnetic recording

 #243
20070018640
2007-01-25

Vacuum chuck spinstand for testing magnetic heads and disks

 #244
20060268443
2006-11-30

Circuit and method for write current driver

 #245
20060232874
2006-10-19

Disk drive with enhanced storage capacity increase ratio

 #246
20060227453
2006-10-12

Magnetic disk drive with isolation wall

 #247
20060227450
2006-10-12

Method of configuring storage space in a data storage device

 #248
20060227449
2006-10-12

Method and apparatus for optimizing record quality with varying track and linear density by allowing overlapping data tracks

 #249
20060215308
2006-09-28

Magnetic disk drive apparatus and method for compensating characteristics of magnetic disk drive apparatus

 #250
20060209445
2006-09-21

Magnetic disk drive and write current control method therein

 #251
20060198041
2006-09-07

Write-current control chip and magnetic disk drive using the same

 #252
20060193076
2006-08-31

Magnetic disk drive to alleviate damage from thermal asperity

 #253
20060188753
2006-08-24

Perpendicular magnetic recording media

 #254
20060181799
2006-08-17

Magnetic recording medium and magnetic storage apparatus

 #255
20060152838
2006-07-13

Magneto-resistive head resistance sensor

 #256
20060147759
2006-07-06

Perpendicular magnetic recording media

 #257
20060146433
2006-07-06

Method for determining unique write inhibit thresholds for individual heads for maximizing file servo performance

 #258
20060139791
2006-06-29

Magnetic disk drive and read/write method to reduce read error rate

 #259
20060132957
2006-06-22

Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle

 #260
20060132956
2006-06-22

Disk writing/reproducing apparatus and method

 #261
20060132122
2006-06-22

Magnetic characteristic inspecting apparatus and inspecting method using it

 #262
20060126204
2006-06-15

Manufacturing method for magnetic disk drive

 #263
20060119963
2006-06-08

System and method for detecting head instability

 #264
20060119962
2006-06-08

Integrated multiple channel data reliability testing for a magnetic tape drive

 #265
20060117333
2006-06-01

Heat-assisted magnetic recording method and test record reproduction method

 #266
20060114606
2006-06-01

Information recording apparatus and information recording method

 #267
20060109000
2006-05-25

Defect inspection method for perpendicular magnetic recording medium, magnetic disk device, and method of registering defects in magnetic disk device having a perpendicular magnetic recording medium therein

 #268
20060103958
2006-05-18

System and method for determining intergranular exchange in perpendicular recording media

 #269
20060098318
2006-05-11

System and method for determining long-range erasure of adjacent tracks in hard disk drive

 #270
20060072229
2006-04-06

Disk drive, medium and method of compensating for a write parameter

 #271
20060066300
2006-03-30

Full track profile derivative method for read and write width measurements of magnetic recording head

 #272
20060061903
2006-03-23

Repetitive controller having reduced memory elements

 #273
20060061356
2006-03-23

Disk testing apparatus, disk testing method, computer-readable recording medium that stores a disk testing program, and disk apparatus including a disk to be tested

 #274
20060044661
2006-03-02

Method for recording magnetic information and magnetic recording system

 #275
20060044659
2006-03-02

Method and apparatus for magnetization test of write head in a disk drive

 #276
20060012909
2006-01-19

Method of tagging calibration results with temperature, time and/or voltage

 #277
20060001995
2006-01-05

Recording and playback apparatus, recording controlling method, and recording medium

 #278
20050265139
2005-12-01

Light delivery technique for heat assisted magnetic recording head

 #279
20050259343
2005-11-24

Thermally assisted recording system

 #280
20050248866
2005-11-10

Magnetic pattern transferring method for performing magnetic pattern transfer while correcting a magneticallly different part

 #281
20050248865
2005-11-10

Magnetic pattern transferring method for performing a magnetic pattern transfer

 #282
20050243480
2005-11-03

Magnetic recording and reproducing apparatus having element for correcting misaligned magnetization direction

 #283
20050243454
2005-11-03

Apparatus and method of measuring write magnetic field of recording head

 #284
20050233177
2005-10-20

Magnetic hard disk drive with countermeasure against spike noise

 #285
20050232018
2005-10-20

Reduced recovery time for perpendicular recording systems

 #286
20050213372
2005-09-29

Method and apparatus for magnetic transfer, and magnetic recording medium

 #287
20050213244
2005-09-29

Magnetic head for perpendicular recording and magnetic disk storage apparatus mounting the head

 #288
20050207061
2005-09-22

Magnetic head for perpendicular recording and magnetic disk storage apparatus mounting the head

 #289
20050204285
2005-09-15

Method for testing or recording servo signal on perpendicular magnetic recording media

 #290
20050201015
2005-09-15

Data transfer device and method

 #291
20050193405
2005-09-01

Magnetic recording and reproducing device and magnetic recording medium

 #292
20050190478
2005-09-01

Longitudinal magnetic recording using magnetic media with a soft underlayer

 #293
20050190471
2005-09-01

Nonlinearity measuring method, nonlinearity measuring unit, magnetic recording/regenerating unit and LSI for magnetic recording/regenerating

 #294
20050180039
2005-08-18

Method for intersymbol interference removal in data recovery

 #295
20050174671
2005-08-11

Method to increase the amount of customer data on a hard disk drive

 #296
20050162767
2005-07-28

Method and system for host programmable data storage device self-testing

 #297
20050157415
2005-07-21

Head polarity detection algorithm and apparatus

 #298
20050154950
2005-07-14

Method for saving self-test output to both flash and media

 #299
20050146994
2005-07-07

Storage medium and manufacture thereof

 #300
20050141134
2005-06-30

System and method for disk formatting