ClassID:

197768

G11B5/3146 - page 2 - CPC Classification

Classification description:

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Structure or manufacture of heads, e.g. inductive using thin films; Details; Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers

Recent Application in this class:
#301
20090117407
2009-05-07

Method for manufacturing a perpendicular magnetic write head

#302
20090091862
2009-04-09

Method to make PMR head with integrated side shield (ISS)

#303
20090091861
2009-04-09

Perpendicular magnetic recording write head with a side shield

#304
20090059438
2009-03-05

Thin-film magnetic head with a magnetic pole having an inclined step at its top end section surface, magnetic head assembly with the thin-film magnetic head, magnetic disk drive apparatus with the magnetic head assembly, and manufacturing method of thin-film magnetic head

#305
20090059427
2009-03-05

Perpendicular magnetic recording head and method for manufacturing the same

#306
20090052095
2009-02-26

Magnetic recording head and magnetic recording apparatus

#307
20090052094
2009-02-26

Magnetic head for perpendicular magnetic recording and method of manufacturing the same, the magnetic head including pole layer and two shields sandwiching the pole layer

#308
20090052092
2009-02-26

Perpendicular magnetic recording head laminated with AFM-FM phase change material

#309
20090034130
2009-02-05

Shield design for magnetic recording head

#310
20090021863
2009-01-22

Perpendicular magnetic recording write head with trailing shield having throat height defined by electroplated nonmagnetic pad layer and method for making the head

#311
20090002896
2009-01-01

Magnetic writer for patterned stack with increased write field

#312
20090002895
2009-01-01

Wire-assisted magnetic write device with a gapped trailing shield

#313
20080316652
2008-12-25

Method for manufacturing a magnetic write head

#314
20080316645
2008-12-25

PERPENDICULAR MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME

#315
20080297953
2008-12-04

Magnetic head for perpendicular magnetic recording with a shield and a pole layer having a top surface with first and second portions at different heights, and method of manufacturing same

#316
20080291582
2008-11-27

Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device

#317
20080278862
2008-11-13

Perpendicular magnetic recording head that suppresses side fringing

#318
20080278861
2008-11-13

Stitched wrap around shield fabrication for perpendicular magnetic recording write heads

#319
20080276448
2008-11-13

Method for redefining the trailing shield throat height in a perpendicular magnetic recording write head

#320
20080273277
2008-11-06

Composite shield structure of PMR writer for high track density

#321
20080273276
2008-11-06

Optimized write pole flare angle for side shield or semi side shield PMR writer application

#322
20080273268
2008-11-06

Perpendicular magnetic recording write head with coplanar main pole and return poles and magnetic recording system

#323
20080259498
2008-10-23

Perpendicular write head with independent trailing shield designs

#324
20080253035
2008-10-16

Method for manufacturing a self-aligned full side shield PMR

#325
20080253034
2008-10-16

Perpendicular magnetic write head having a structure that suppresses unintended erasure of information on a write medium at a non-writing time

#326
20080247087
2008-10-09

Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer

#327
20080239584
2008-10-02

Thin-film magnetic head having laminate shields for tolerating external magnetic field

#328
20080235938
2008-10-02

Method for manufacturing a magnetic head for perpendicular magnetic data recording

#329
20080232001
2008-09-25

Perpendicular write head having a stepped flare structure and method of manufacture thereof

#330
20080232000
2008-09-25

Magnetic write head with upper return pole optimization for reduced trailing shield protrusion

#331
20080231994
2008-09-25

Perpendicular recording magnetic head

#332
20080231985
2008-09-25

Magnetic head having two main magnetic poles, magnetic disk apparatus and magnetic head switching control circuit

#333
20080212241
2008-09-04

Damping control in magnetic nano-elements using ultrathin damping layer

#334
20080198507
2008-08-21

Magnetic head having write pole, first soft magnetic films separately disposed on both sides of the main pole, and a second soft magnetic film disposed on a trailing side of the main pole

#335
20080170334
2008-07-17

Magnetic head

#336
20080148552
2008-06-26

Method of manufacturing a wrap around shield for a perpendicular write pole using a laminated mask with an endpoint detection layer

#337
20080144230
2008-06-19

Magnetic head and magnetic recording-reproducing apparatus

#338
20080141522
2008-06-19

Optical lapping guide for use in the manufacture of perpendicular magnetic write heads

#339
20080117546
2008-05-22

Perpendicular magnetic recording write head with flux-conductor contacting write pole

#340
20080112081
2008-05-15

Perpendicular magnetic write head, having side shields coupled to a leading shield and apart from a trailing shield

#341
20080110761
2008-05-15

Use of metal capped seed layers for the fabrication of perpendicular thin film heads

#342
20080107922
2008-05-08

Magnetic film for magnetic head

#343
20080102317
2008-05-01

Magnetic film for magnetic head

#344
20080088983
2008-04-17

DAMPING CONTROL IN MAGNETIC NANO-ELEMENTS USING ULTRATHIN DAMPING LAYER

#345
20080072417
2008-03-27

Method for constructing a magnetic write pole for a perpendicular magnetic recording head

#346
20080037168
2008-02-14

Laminated magnetic structure for use in a perpendicular magnetic write head

#347
20080024911
2008-01-31

Magnetic head for perpendicular magnetic recording and method of manufacturing same

#348
20070297096
2007-12-27

Magnetic head

#349
20070279803
2007-12-06

Thin-film magnetic head having a recording head portion configured to record magnetic information on a patterned media, head gimbal assembly, and hard disk system

#350
20070274003
2007-11-29

Magnetic recording/reproducing system, and thin-film magnetic head having shield layers of specified widths

#351
20070268623
2007-11-22

Magnetic write head design for reducing wide area track erasure

#352
20070263324
2007-11-15

Method of manufacturing a perpendicular magnetic recording write head with notched trailing shield

#353
20070258167
2007-11-08

Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge

#354
20070254189
2007-11-01

Magnetic storage device

#355
20070253107
2007-11-01

Perpendicular recording magnetic head with a main magnetic pole piece and an auxiliary magnetic pole piece

#356
20070247751
2007-10-25

Trailing shield design for reducing wide area track erasure (water) in a perpendicular recording system

#357
20070247748
2007-10-25

Perpendicular magnetic recording system with medium having thin soft underlayer and recording head having thick-throat trailing shield

#358
20070247747
2007-10-25

Tapered write pole for reduced skew effect

#359
20070247746
2007-10-25

Method of making a perpendicular magnetic recording write head with notched trailing shield

#360
20070245545
2007-10-25

Method of manufacturing a wrap around shield for a perpendicular write pole using a laminated mask

#361
20070245544
2007-10-25

Method for making a perpendicular magnetic recording write head

#362
20070242392
2007-10-18

Shield in a magnetic device with reduced erase field

#363
20070236831
2007-10-11

Shaped trailing shield of a perpendicular recording write element

#364
20070230043
2007-10-04

Thin film magnetic device having strip-shaped magnetic films with their magnetization easy axes arranged orthogonal to a thin film coil and method of manufacturing the same

#365
20070223142
2007-09-27

Magnetic storage apparatus

#366
20070211384
2007-09-13

Perpendicular magnetic write head having a corner notched conformal, wrap-around, trailing magnetic shield for reduced adjacent track interference

#367
20070211382
2007-09-13

Magnetic head and magnetic disk storage apparatus mounting the head

#368
20070211380
2007-09-13

Perpendicular magnetic head

#369
20070195457
2007-08-23

Magnetic device, perpendicular magnetic recording head, magnetic recording system, method of forming magnetic layer pattern, and method of manufacturing perpendicular magnetic recording head

#370
20070188917
2007-08-16

Layered magnetic film and magnetic head

#371
20070186408
2007-08-16

Method of fabricating a head for perpendicular magnetic recording with a self-aligning side shield structure

#372
20070177301
2007-08-02

Perpendicular magnetic recording head with a side write shield

#373
20070157459
2007-07-12

Method of manufacturing thin film magnetic head having lower shield layer embedded in insulating

#374
20070146931
2007-06-28

Method for fabricating a side shield for a flux guide layer for perpendicular magnetic recording

#375
20070146929
2007-06-28

Perpendicular magnetic head with side shield depth less than write gap film

#376
20070139819
2007-06-21

Perpendicular magnetic recording head device capable of increasing magnetic field gradient to exhibit excellent recording performance while maintaining magnetic field intensity

#377
20070115584
2007-05-24

Write head design and method for reducing adjacent track interference at very narrow track widths

#378
20070097546
2007-05-03

Laminated return pole for suppressing side track erasure

#379
20070047140
2007-03-01

Electroplated multiple layer soft magnetic materials with high magnetic moment

#380
20070035885
2007-02-15

Perpendicular magnetic recording head and method of manufacturing the same

#381
20070035884
2007-02-15

Perpendicular magnetic recording head

#382
20070025018
2007-02-01

Perpendicular magnetic recording head comprising gap shield

#383
20070019327
2007-01-25

Main pole structure coupled with trailing gap for perpendicular recording

#384
20060256481
2006-11-16

Composite thin-film magnetic head, magnetic head assembly and magnetic disk drive apparatus

#385
20060250726
2006-11-09

Shield structure in magnetic recording heads

#386
20060245108
2006-11-02

Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head

#387
20060215315
2006-09-28

Soft magnetic thin film and magnetic recording head

#388
20060209458
2006-09-21

Soft magnetic film and thin film magnetic head

#389
20060203384
2006-09-14

Perpendicular magnetic recording head for high frequency drive

#390
20060171070
2006-08-03

Magnetic recording head having a switching layer which may be rendered non-magnetic by heating

#391
20060164756
2006-07-27

Perpendicular magnetic recording head

#392
20060119984
2006-06-08

Magnetic head with soft magnetic shield and magnetic storage

#393
20060098334
2006-05-11

Laminated side shield for perpendicular write head for improved performance

#394
20060092569
2006-05-04

Winged pole and shield structure for reducing stray field in a perpendicular write head

#395
20060092566
2006-05-04

Double notched shield and pole structure for stray field reduction in a magnetic head

#396
20060000794
2006-01-05

Methods of fabricating magnetic write heads with side and trailing shield structures

#397
20050259357
2005-11-24

Perpendicular magnetic head with yoke overlapping inner side portion and increasing in width and thickness along height

#398
20050254169
2005-11-17

Return pole field reduction for perpendicular write head

#399
20050219747
2005-10-06

Perpendicular magnetic recording head with flare and taper configurations

#400
20050185339
2005-08-25

Recording head, recording head manufacturing method, combined head and magnetic recording/reproduction apparatus

#401
20050185335
2005-08-25

Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same

#402
20050083605
2005-04-21

Fully shielded perpendicular recoding writer

#403
20050068671
2005-03-31

Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield

#404
20050057853
2005-03-17

Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same

#405
20050013058
2005-01-20

Magnetic head and magnetic disk drive

#406
20050007698
2005-01-13

Thin film magnetic head and magnetic storage apparatus

#407
20050003234
2005-01-06

Magnetic film for magnetic head

#408
18333851
2024-02-27

Magnetic media decommission management in a computer system

#409
17677326
2022-11-29

Magnetic head including main pole having top surface including first inclined portion, second inclined portion, and third inclined portion, and spin torque oscillator

#410
17538391
2023-01-31

Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application

#411
17456440
2024-01-23

Cross track current design for energy assisted magnetic recording

#412
17398385
2022-07-19

Magnetic head and magnetic recording device

#413
17313417
2022-07-05

Magnetic head including spin torque oscillator, first and second gap films, and first and second guard films, and manufacturing method for the same

#414
17184543
2022-03-29

Spintronic device having negative interface spin scattering

#415
16924074
2021-01-12

MAMR recording head with high damping trailing shield seed layer

#416
16920093
2021-07-27

Energy-assisted magnetic recording head with protective cap

#417
16906480
2022-01-18

Energy assisted magnetic recording head having improved areal density capability

#418
16885143
2023-03-28

Disk drive biasing two write assist elements using three terminal control circuitry

#419
16828030
2022-03-29

Notched leading-edge shield for assisted magnetic recording head

#420
16803952
2020-12-15

Spin transfer torque (STT) device with template layer for Heusler alloy magnetic layers

#421
16783057
2021-11-09

Magnetic recording write head with spin-torque oscillator (STO) and extended seed layer

#422
16781618
2021-06-22

Spin torque reversal assisted magnetic recording (STRAMR) device having a width substantially equal to that of a traililng shield

#423
16730713
2020-11-17

MAMR recording head with high damping trailing shield seed layer

#424
16680888
2020-08-18

Third alternative design for magnetic recording assisted by one or two spin hall effect (SHE) layers in the write gap

#425
16656596
2020-03-31

System for transition curvature improvement on a thermally assisted magnetic recording

#426
16564704
2020-11-10

Magnetic recording devices using virtual side shields for improved areal density capability

#427
16560649
2020-09-22

Reader with bi-layered side shields

#428
16559372
2023-03-07

Three terminal magnetic recording head

#429
16507179
2020-12-08

Writer with narrower high moment trailing shield

#430
16453991
2020-12-15

Spin orbital torque based microwave assisted magnetic recording with dual spin hall layers or wrap around spin hall layer

#431
16372517
2020-07-14

Writer with recessed spin flipping element in the main pole surrounding gap

#432
16358310
2020-05-05

Spin torque oscillator device including a high damping field generation layer or a damping enhancing capping layer

#433
16267803
2020-03-10

Magnetic head including a main pole and a write shield

#434
16209151
2019-11-26

Magnetic flux guiding device with antiferromagnetically coupled (AFC) oscillator in assisted writing application

#435
16174551
2020-06-30

Write head with reduced side to trailing shield spacing

#436
16000033
2021-01-12

Magnetic head with current assisted magnetic recording and method of making thereof

#437
15919025
2019-08-20

Apparatus and method for writing to magnetic media using an AC bias current to enhance the write field

#438
15730845
2018-11-06

Magnetic recording head with spin torque oscillator layers satisfying width, thickness and angle relationship formulas

#439
15662682
2018-11-27

Write head with reduced trailing shield—side shield spacing

#440
15659840
2018-10-16

High damping materials in shields and/or write pole

#441
15652684
2018-10-23

Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus

#442
15618315
2018-04-03

Recording head with first and second coils that induce flux into write pole and shield

#443
15601032
2019-02-12

Magnetic write transducer with flat pole section

#444
15595338
2018-07-03

Perpendicular magnetic recording (PMR) write head with patterned leading shield

#445
15445857
2017-10-17

Microwave-assisted magnetic recording head and magnetic recording and reproducing device

#446
15018311
2018-02-20

Data writer with laminated front shield

#447
14981213
2016-11-22

Magnetic head for perpendicular magnetic recording with a trailing shield including a plurality of portions different in saturation flux density

#448
14953982
2017-09-05

Magnetic recording write apparatus having a stepped conformal trailing shield

#449
14847418
2016-10-11

Perpendicular magnetic recording (PMR) write shield design with minimized wide adjacent track erasure (WATE)

#450
14752933
2016-08-02

Electrically non-conductive magnetic shield laminate structure for contact recording sensor

#451
14726513
2016-09-06

Spin torque oscillator with high spin torque efficiency and reliability

#452
14479767
2016-01-05

Scissor reader with side shield decoupled from bias material

#453
14046790
2016-03-01

Process for making PMR writer with non-conformal side gaps