ClassID:

198371

G11B13/08 - CPC Classification

Classification description:

Recording simultaneously or selectively by methods covered by different main groups among , , and ; Record carriers therefor not otherwise provided for ; Reproducing therefrom not otherwise provided for using near-field interactions or transducing means and at least one other method or means for recording or reproducing

Recent Application in this class:
#1
20260088043
2026-03-26

Heat Assisted Magnetic Recording Head Comprising A Thermally Stable Material

#2
20260074485
2026-03-12

VERTICAL CAVITY SURFACE EMITTING LASER AND HEAD GIMBAL ASSEMBLY

#3
20260065931
2026-03-05

Noble Metal Coated Plasmonic Waveguide Blocker For Heat Assisted Magnetic Recording Head

#4
20260065926
2026-03-05

HEAT-ASSISTED MAGNETIC RECORDING AND REPRODUCTION DEVICE AND ADJUSTMENT METHOD OF THE SAME

#5
20250364009
2025-11-27

MAGNETIC RECORDING APPARATUS WITH HEAT-ASSISTED READ PROCESS

#6
20250342856
2025-11-06

Phase-Coherent In-Line VCSEL Array with Slider Trailing Mount for HAMR

#7
20250322847
2025-10-16

Near Field Transducer With Template Layer For Improved Reliability

#8
20250285643
2025-09-11

Hybrid Plasmonic Bottom Layer For Increased Near Field Transducer Reliability

#9
20250218462
2025-07-03

POSITIVE LASER BIAS ELECTRICAL CONTROL ARCHITECTURE FOR DARK LASER HEATING IN HEAT ASSISTED MAGNETIC RECORDING

#10
20250218461
2025-07-03

SINGLE FREQUENCY LASER FOR HEAT ASSISTED MAGNETIC RECORDING AND OTHER APPLICATIONS

#11
20240404556
2024-12-05

Near-field transducer (NFT) designs for improved performance of heat-assisted magnetic recording (HAMR)

#12
20240404551
2024-12-05

LOCAL EXTENSION OF HEAD OVERCOAT WITH A NEAR-FIELD TRANSDUCER EXTENDING TOWARD THE MEDIA-FACING SURFACE

#13
20240296866
2024-09-05

Tapered Bi-Layer Near Field Transducer For Heat-Assisted Magnetic Recording Write Heads

#14
20240233757
2024-07-11

HEAT ASSISTED MAGNETIC RECORDING (HAMR) WRITE HEAD WITH ENHANCED STABILITY AND METHODS FOR MAKING THE SAME

#15
20240161777
2024-05-16

Heat-assisted magnetic recording (HAMR) head with main pole having narrow pole tip with plasmonic layer

#16
20240135964
2024-04-25

Heat assisted magnetic recording (HAMR) write head with enhanced stability and methods for making the same

#17
20240112696
2024-04-04

Heat-assisted magnetic recording head with an integrated photodiode

#18
20240096369
2024-03-21

Heat-assisted magnetic recording head near-field transducer with a hybrid plasmonic disk

#19
20240096368
2024-03-21

MEDIA STRUCTURE CONFIGURED FOR HEAT-ASSISTED MAGNETIC RECORDING AND IMPROVED MEDIA FABRICATION

#20
20240096350
2024-03-21

Magnetic recording/reproducing device

#21
20240062783
2024-02-22

Heat-assisted magnetic recording (HAMR) head with main pole having narrow plasmonic recess

#22
20240038260
2024-02-01

Adaptive dual heater mode for hard disk drive

#23
20240013806
2024-01-11

Laser feedback suppressor for heat-assisted magnetic recording

#24
20230410843
2023-12-21

Heat-assisted magnetic recording head near-field transducer with a hybrid plasmonic disk

#25
20230317111
2023-10-05

NEAR-FIELD ACTIVE OPTICAL PROBE FOR HEAT-ASSISTED MAGNETIC RECORDING

#26
20230245681
2023-08-03

Heat-assisted magnetic recording (HAMR) head with main pole having recess for plasmonic material

#27
20230114979
2023-04-13

OXIDIZING OR REDUCING ATMOSPHERE FOR HEAT-ASSISTED MAGNETIC RECORDING

#28
20230110250
2023-04-13

Heatsink structures for heat-assisted magnetic recording heads

#29
20230003940
2023-01-05

Waveguide and manufacturing method thereof

#30
20220415354
2022-12-29

Heat-assisted magnetic recording head near-field transducer with a plasmonic disk

#31
20220415353
2022-12-29

Heat-assisted magnetic recording head near-field transducer with a heat sink

#32
20220415352
2022-12-29

Heat-assisted magnetic recording head with a near-field oscillator pair

#33
20220407292
2022-12-22

VERTICAL CAVITY SURFACE EMITTING LASER AND HEAD GIMBAL ASSEMBLY

#34
20220407288
2022-12-22

Vertical cavity surface emitting laser, head gimbal assembly, and fabrication process

#35
20220399034
2022-12-15

Heat-assisted magnetic recording (HAMR) write head with protective multilayer film for near-field transducer

#36
20220319543
2022-10-06

METHOD FOR MAKING A THERMALLY-STABILIZED PLASMONIC ALLOY FEATURE OF A HEAT-ASSISTED MAGNETIC RECORDING HEAD NEAR-FIELD TRANSDUCER

#37
20220319542
2022-10-06

Heat-assisted magnetic recording head near-field transducer with a thermally-stabilized plasmonic alloy

#38
20220115039
2022-04-14

Magnetic recording and reproducing device

#39
20220101879
2022-03-31

Laser feedback suppressor for heat-assisted magnetic recording

#40
20220005506
2022-01-06

Heat treatment of NFT and surrounding material

#41
20210383831
2021-12-09

Heat-assisted magnetic recording device incorporating laser heater for improved laser stability

#42
20210366515
2021-11-25

Heatsink structures for heat-assisted magnetic recording heads

#43
20210210121
2021-07-08

Oxidizing or reducing atmosphere for heat-assisted magnetic recording

#44
20210027809
2021-01-28

Heatsink structures for heat-assisted magnetic recording heads

#45
20200365181
2020-11-19

Heat-assisted magnetic recording device incorporating laser heater for improved laser stability

#46
20200283895
2020-09-10

Atomic layer deposition systems, methods, and devices

#47
20200227086
2020-07-16

Materials for near field transducers and near field transducers containing same

#48
20200118591
2020-04-16

Heat-assisted magnetic recording device incorporating laser heater for improved laser stability

#49
20190198053
2019-06-27

Metal-insulator-metal near-field transducer for heat-assisted magnetic recording

#50
20190096435
2019-03-28

Magnetic Recording Method

#51
20190088280
2019-03-21

MATERIALS FOR NEAR FIELD TRANSDUCERS AND NEAR FIELD TRANSDUCERS CONTAINING SAME

#52
20190066725
2019-02-28

Electromagnetically-shielded near-field transducer thermal sensor for heat-assisted magnetic recording

#53
20180366153
2018-12-20

Materials for near field transducers and near field transducers containing same

#54
20180330754
2018-11-15

Heat-assisted magnetic recording device capable of detecting degradation of NFT by measuring back-heat from medium

#55
20180137889
2018-05-17

Materials for near field transducers and near field transducers containing same

#56
20180108373
2018-04-19

Plasmonic gap waveguide

#57
20170365281
2017-12-21

Methods of forming materials for at least a portion of a NFT and NFTs formed using the same

#58
20170092318
2017-03-30

Laser adjustment during field operation of a heat-assisted magnetic recording data storage device

#59
20170069342
2017-03-09

Materials for near field transducers, near field tranducers containing same, and methods of forming

#60
20160365103
2016-12-15

Magnetic devices including film structures

#61
20160260448
2016-09-08

Devices including near field transducer and adhesion layer

#62
20160210989
2016-07-21

Methods of forming materials for at least a portion of a NFT and NFTs formed using the same

#63
20160189735
2016-06-30

Materials for near field transducers and near field transducers containing same

#64
20160163336
2016-06-09

Devices including at least one intermixing layer

#65
20160125901
2016-05-05

Near-field transducer with multiple heat sinks

#66
20150380040
2015-12-31

Near-field transducer efficiency monitoring system

#67
20150380029
2015-12-31

Method of assessing recording characteristics of thermally assisted magnetic head

#68
20150364152
2015-12-17

Laser optical power monitoring using thermal sensor of a head transducer

#69
20150348578
2015-12-03

Creating a sub-micron pattern proximate a near-field transducer using in-slider waveguide and laser

#70
20150340053
2015-11-26

Heat assisted media recording apparatus with laser diode mode hopping suppression

#71
20150340051
2015-11-26

Laser array for heat assisted magnetic recording

#72
20150332709
2015-11-19

Magnetic devices including film structures

#73
20150294678
2015-10-15

Thermal assisted magnetic recording head utilizing uncoupled light

#74
20150279430
2015-10-01

HAMR drive fault detection system

#75
20150279399
2015-10-01

Planar plasmon generator with thickened region and peg region

#76
20150255097
2015-09-10

Near field transducer and heat sink design for heat assisted magnetic recording

#77
20150247722
2015-09-03

Method of manufacturing thermally-assisted magnetic head and alignment apparatus thereof

#78
20150235665
2015-08-20

Near-field transducer efficiency monitoring system

#79
20150221324
2015-08-06

Near field transducer having notch diffusion barrier

#80
20150187378
2015-07-02

Peg height of near-field transducers

#81
20150179194
2015-06-25

Devices including at least one intermixing layer

#82
20150162030
2015-06-11

Methods of forming near field transducers and near field transducers formed thereby

#83
20150146505
2015-05-28

Recording head structure

#84
20150131417
2015-05-14

Near field transducer having sacrificial structure

#85
20150117170
2015-04-30

Devices including near field transducer and adhesion layers

#86
20150117169
2015-04-30

Near-field transducer with rounded or obtuse corners

#87
20150085630
2015-03-26

Multi-purpose near-field transducer having a temperature coefficient of resistance

#88
20150071045
2015-03-12

Apparatuses and methods for controlling near-field transducer to write pole spacing

#89
20150071044
2015-03-12

Thermally-assisted magnetic recording head having a plasmon generator

#90
20150063086
2015-03-05

Magnetic adhesion layer and method of forming same

#91
20150049595
2015-02-19

Slider for magnetic recording apparatus with projection comprising optical turning element and methods of fabrication thereof

#92
20150043877
2015-02-12

Optical devices including assistant layers

#93
20150043319
2015-02-12

Optical device, magnetic head, manufacturing method, and near-field light device

#94
20150043317
2015-02-12

Grating based laser and power monitor for a heat-assisted magnetic recording device

#95
20150043316
2015-02-12

Apparatus with a plurality of heat sinks

#96
20150043315
2015-02-12

Near-field transducer with enlarged region, peg region, and heat sink region

#97
20150036470
2015-02-05

E-antenna near field transducer with thermal shunt to return pole

#98
20150036469
2015-02-05

Laser optical power monitoring using thermal sensor of a head transducer

#99
20140376353
2014-12-25

Magnetic devices including film structures

#100
20140376352
2014-12-25

Materials for near field transducers, near field tranducers containing same, and methods of forming

#101
20140376348
2014-12-25

Devices including at least one intermixing layer

#102
20140376347
2014-12-25

Materials for near field transducers and near field transducers containing same

#103
20140376346
2014-12-25

Methods of forming materials for at least a portion of a NFT and NFTs formed using the same

#104
20140376345
2014-12-25

Near field transducer with isolated peg

#105
20140376344
2014-12-25

Near field transducer and heat sink design for heat assisted magnetic recording

#106
20140376343
2014-12-25

Peg only near-field transducer

#107
20140376341
2014-12-25

NEAR-FIELD TRANSDUCER PEG ENCAPSULATION

#108
20140376339
2014-12-25

Magnetic devices including near field transducer

#109
20140374376
2014-12-25

Materials for near field transducers and near field transducers containing same

#110
20140334277
2014-11-13

Light delivery apparatus

#111
20140307534
2014-10-16

Apparatuses and methods for controlling near-field transducer to write pole spacing

#112
20140293760
2014-10-02

Magnetic disk unit and thermally-assisted magnetic recording method

#113
20140269232
2014-09-18

Near-field light generator and thermally-assisted magnetic recording head

#114
20140254339
2014-09-11

Method of making a transducer head

#115
20140254335
2014-09-11

Waveguide with phase shifting portions

#116
20140247706
2014-09-04

Plasmon generator including two portions made of different metals

#117
20140241139
2014-08-28

Write portion, thermally assisted magnetic head slider, head gimbal assembly, and hard disk drive with the same

#118
20140241136
2014-08-28

Thermally-assisted magnetic recording head using near-field light

#119
20140226450
2014-08-14

Near-field transducer

#120
20140204723
2014-07-24

Thermally-assisted magnetic recording head including a waveguide, a magnetic pole, and a plasmon generator and method of manufacturing the same

#121
20140104996
2014-04-17

Magnetic head slider apparatus, magnetic disk drive apparatus, and suspension thereof

#122
20140064047
2014-03-06

Magnetic recording medium having multiple under layers for heat-assisted magnetic recording apparatus

#123
20140050057
2014-02-20

Recording head including NFT and heatsink

#124
20140050056
2014-02-20

Head-gimbal-assembly capable of inhibiting effects of deterioration in lateral balance of heat-assisted magnetic recording head

#125
20140043948
2014-02-13

Plasmon generator and thermally-assisted magnetic recording head having the same

#126
20140036647
2014-02-06

Near-field light device, recording apparatus using the same, and recording method

#127
20140036646
2014-02-06

Near-field transducer

#128
20140010056
2014-01-09

Thermally assisted magnetic write head employing a plasmonic antenna comprising an alloyed film to improve the hardness and manufacturability of the antenna

#129
20130343167
2013-12-26

Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducer

#130
20130330573
2013-12-12

Layered near-field transducer

#131
20130294208
2013-11-07

Plasmonic transducer having two metal elements with a gap disposed therebetween

#132
20130286807
2013-10-31

Heater assembly and method of heating

#133
20130286806
2013-10-31

Heat assisted magnetic recording head

#134
20130286799
2013-10-31

HAMR NFT materials with improved thermal stability

#135
20130279315
2013-10-24

Near field transducers including nitride materials

#136
20130279314
2013-10-24

Optical devices including assistant layers

#137
20130170332
2013-07-04

Near field transducer with shaped energy radiating end

#138
20130107679
2013-05-02

Heat assisted magnetic recording devices

#139
20130064051
2013-03-14

Plasmonic transducer having two metal elements with a gap disposed therebetween

#140
20120127839
2012-05-24

Thermally assisted magnetic write head employing a plasmonic antenna comprising an alloyed film to improve the hardness and manufacturability of the antenna

#141
20120045662
2012-02-23

Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducer

#142
20110188356
2011-08-04

Head gimbal assembly and data recording and reproducing apparatus having the same

#143
18958314
2026-01-06

Forming a heat channel on a magnetic write pole using an adhesion layer

#144
18896353
2026-01-06

Heat assisted magnetic recording head comprising a thermally stable material

#145
18789824
2026-04-28

Energy-assisted recording near-field transducer with inlay to improve coupling efficiency

#146
18783286
2025-10-28

Noble metal coated plasmonic waveguide blocker for heat assisted magnetic recording head

#147
18652371
2025-08-26

Head and media overcoats for heat assisted magnetic recording

#148
18637324
2025-04-29

Near field transducer with template layer for improved reliability

#149
18587570
2025-07-08

Hybrid plasmonic bottom layer for increased near field transducer reliability

#150
18402926
2025-07-01

Positive laser bias electrical control architecture for dark laser heating in heat assisted magnetic recording

#151
18354439
2024-11-19

Assist cores for spot size converter for heat assisted magnetic recording

#152
18324695
2024-07-02

Thermally assisted magnetic head, light source unit bar like member, and hard disk drive

#153
18230018
2024-07-16

Phase-coherent in-line VCSEL array with slider trailing mount for HAMR

#154
18229779
2024-10-15

Near-field transducer for heat assisted magnetic recording comprising of thermally stable material layer

#155
18106609
2024-06-18

Tapered bi-layer near field transducer for heat-assisted magnetic recording write heads

#156
18091809
2024-02-06

Self-aligned hybrid near field transducer with single peg grain

#157
18062397
2024-01-16

Heat-assisted magnetic recording head with a bilayer adhesion structure

#158
17877478
2023-11-21

HAMR recording head with external cavity laser using a near-field transducer as a reflector

#159
17858277
2023-09-19

Heat-assisted magnetic recording head, and related methods

#160
17851367
2023-12-05

HAMR read-write head with coupler and waveguide

#161
17809722
2024-02-20

Heat-assisted magnetic recording head with an integrated photodiode

#162
17809607
2023-10-24

Heat-assisted magnetic recording head with a laser heater

#163
17727850
2023-08-22

Thermally assisted magnetic head including a record/read separate protective structure, head gimbal assembly and hard disk drive each having the thermally assisted magnetic head

#164
17727844
2023-01-24

Thermally assisted magnetic head, head gimbal assembly and hard disk drive

#165
17708558
2023-05-23

Beam combiner for VCSEL array in HAMR head

#166
17706257
2023-05-30

Heat-assisted recording head having mechanically robust subwavelength mirror with plasmonic liner

#167
17678428
2023-02-21

Method to measure thermal protrusion by sensing spacing change due to pre-lasing

#168
17657698
2023-10-24

Heat-assisted magnetic recording head with nanoparticles

#169
17657167
2023-05-09

Heat-assisted magnetic recording head with a heat sink and a diffusion barrier

#170
17656674
2023-07-25

Heat-assisted magnetic recording head with a near-field transducer having a multilayer near-field emitter

#171
17653016
2023-07-25

Heat-assisted magnetic recording head with a multilayer plasmonic disk

#172
17588758
2023-04-11

Heat assisted magnetic recording (HAMR) write head containing a near-field transducer with diffusion barrier and method of making thereof

#173
17588473
2022-12-20

Heat-assisted magnetic recording (HAMR) head with main pole having recess for plasmonic material

#174
17565188
2023-04-11

Three-state single-pass recording in HAMR device with dual recording layers

#175
17522404
2022-11-29

Heat-assisted magnetic recording (HAMR) slider with stray light removal

#176
17406352
2022-06-28

Recording head with focusing structure

#177
17345634
2022-07-12

Multiple protective film on near-field transducer of heat-assisted magnetic recording device

#178
17172244
2022-05-10

Heat-assisted magnetic recording (HAMR) head with heat sink material adjacent the waveguide

#179
17156920
2022-04-26

Near-field transducer with separated bottom Au layer

#180
17082360
2022-01-18

Laser feedback suppressor for heat-assisted magnetic recording

#181
16911064
2021-11-09

Heat treatment of NFT on heat-assisted magnetic recording device

#182
16800049
2020-12-22

Near-field transducer with Au nano rod

#183
16800029
2021-06-22

RhIr alloy near-field transducer with Rh template layer in a thermally assisted magnetic recording (TAMR) application

#184
16551085
2021-11-02

Methods of forming materials

#185
16367224
2020-05-12

Thermally-assisted magnetic recording head having optimal reflecting position inside waveguide

#186
16282383
2019-12-17

Thermally-assisted magnetic recording head having sub-mount with barrier-members sandwich a heater

#187
16213232
2019-11-26

Near-field transducer of heat-assisted recording head having bottom and middle disks with different recessions from media-facing surface

#188
16054153
2019-11-26

Near-field transducer dielectric wrap for reducing heat

#189
16054137
2019-11-26

Near-field transducer having dielectric wrap for reducing heat

#190
16006324
2019-05-07

Near-field transducer with a dielectric slit at internal surfaces for controlling feedback to a light source

#191
15991010
2019-09-03

Heat-assisted magnetic recording head having a trench on aperture waveguide output end

#192
15874353
2019-04-23

Heat-assisted magnetic recording head having waveguide with outer pseudo-slab that confines stray light

#193
15873114
2019-04-02

Heat-assisted magnetic recording head including a waveguide with dielectric cavity to reduce optical feedback

#194
15853770
2019-04-02

Architecture for metal-insulator-metal near-field transducer for heat-assisted magnetic recording

#195
15694276
2018-10-23

Heat-assisted magnetic recording (HAMR) medium with heat-sink layer having anisotropic thermal conductivity

#196
15350848
2018-07-10

Near-field heat transfer enabled nanothermomechanical memory and logic devices

#197
15185420
2017-10-10

Waveguide system with inter-core coupler

#198
14723802
2016-07-12

Reading and writing to a HAMR recording medium at different skew angles

#199
14716517
2016-02-02

Waveguide cladding layer with transparent heat sink for heat-assisted magnetic recording device

#200
14706686
2015-12-01

Split-ring resonator (SRR) NFT design for use in HAMR

#201
14621287
2015-09-01

Heat assisted magnetic recording writer having an integrated polarization rotation plate

#202
14529429
2015-09-29

Near-field transducer with multiple heat sinks

#203
14492876
2015-07-28

Determination of reader to writer crosstrack offset via a magnetic disk

#204
14339339
2015-06-09

Split-ring resonator (SRR) NFT design for use in HAMR

#205
14297975
2015-09-22

Heat assisted magnetic recording writer having a recessed pole

#206
14268407
2015-04-28

Laminated plasmon generator with cavity process

#207
14254179
2014-10-28

Estimating narrow, laser-induced protrusion at a near-field transducer

#208
14229416
2015-04-07

Assistant waveguides for evaluating main waveguide coupling efficiency and diode laser alignment tolerances for hard disk

#209
14227340
2015-03-03

Near field transducer with high refractive index pin for heat assisted magnetic recording

#210
13923925
2014-09-09

Magnetic devices including film structures

#211
13903121
2014-10-14

Heat assisted magnetic recording transducer having protective pads

#212
13829438
2014-10-14

Integrated sensor for monitoring laser power in a heat assisted magnetic recording disk drive