ClassID:

197767

G11B5/3143 - 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

Sub-classes:
Recent Application in this class:
#1
20260004802
2026-01-01

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

#2
20250182781
2025-06-05

Perpendicular Magnetic Recording Writer With Tunable Pole Side Bridge Design

#3
20250131942
2025-04-24

Dynamic DC Field Compensator for MAMR Recording Head

#4
20240355353
2024-10-24

MAGNETIC RECORDING HEAD WITH CURRENT PATH BETWEEN TRAILING SHIELD AND LEADING SHIELD FOR IMPROVED RESISTANCE

#5
20240321296
2024-09-26

Dynamic DC field compensator for MAMR recording head

#6
20240233758
2024-07-11

Perpendicular Magnetic Recording Writer With Tunable Pole Side Bridge Design

#7
20240135965
2024-04-25

Perpendicular magnetic recording writer with tunable pole side bridge design

#8
20220343944
2022-10-27

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

#9
20220284922
2022-09-08

Magnetic disk device with recording head including spin torque oscillator

#10
20210233560
2021-07-29

Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head

#11
20210074322
2021-03-11

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

#12
20200312354
2020-10-01

Heat sink structure for microwave-assisted magnetic recording (MAMR) head

#13
20200294536
2020-09-17

Magnetic write head with dual return pole and tapered main pole

#14
20200224307
2020-07-16

Near-field transducer having secondary atom higher concentration at bottom of the peg

#15
20200118586
2020-04-16

Magnetic write head with dual return pole

#16
20200082845
2020-03-12

Magnetic head with conductive layer configurations between magnetic pole and shield and magnetic recording and reproducing device

#17
20190392861
2019-12-26

Spin-orbit torque induced magnetization switching in a magnetic recording head

#18
20190206428
2019-07-04

Method of forming a perpendicular magnetic recording (PMR) write head with patterned leading edge taper

#19
20190180775
2019-06-13

Write transducers having high moment layer

#20
20190180774
2019-06-13

Write transducers having high moment layer

#21
20190180773
2019-06-13

Apparatus having recessed TMR read sensor structures for robust head-tape interface

#22
20190153590
2019-05-23

Near field transducer having secondary atom higher concentration at bottom of the peg

#23
20190115047
2019-04-18

Magnetic recording head with specified thickness and saturation magnetic flux density products for STO magnetic layers

#24
20190051322
2019-02-14

Magnetic disk device which controls a recording operation and a non-recording operation of a recording head and a recording head control method of the magnetic disk device

#25
20180330748
2018-11-15

PMR write head with patterned leading edge taper

#26
20180294005
2018-10-11

In-situ protective film

#27
20180294004
2018-10-11

Method of forming an in-situ protective film

#28
20180120387
2018-05-03

Magnetic sensor manufacturing

#29
20180114539
2018-04-26

Magnetic recording head with specified thickness and saturation magnetic flux density products for STO magnetic layers

#30
20170316794
2017-11-02

Magnetic recording write apparatus having a pole having an aspect ratio greater than one and an auxiliary pole

#31
20170076742
2017-03-16

Perpendicular magnetic recording (PMR) writer with hybrid shield layers

#32
20170076741
2017-03-16

Perpendicular magnetic recording (PMR) writer with hybrid shield layers

#33
20160379675
2016-12-29

Electrically conductive magnetic shield laminate structure for contact recording sensor

#34
20160379674
2016-12-29

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

#35
20160260447
2016-09-08

Recording read heads with a multi-layer AFM layer methods and apparatuses

#36
20160218728
2016-07-28

Dual-side spin transfer spin torque oscillator

#37
20160180868
2016-06-23

Storage device head using high magnetic moment material including a rare earth material and a transition metal

#38
20160133276
2016-05-12

Perpendicular magnetic recording head with improved density recording

#39
20160078887
2016-03-17

Main pole layer with at least two sacrificial layers and a gap layer

#40
20160064017
2016-03-03

Data writer with flux density insert

#41
20150371668
2015-12-24

Write head having beveled non-magnetic write gap seed layer

#42
20150364148
2015-12-17

Writer core incorporating thermal sensor having a temperature coefficient of resistance

#43
20150287426
2015-10-08

MAGNETIC READ HEAD HAVING SPIN HALL EFFECT LAYER

#44
20150131179
2015-05-14

Magnetic sensor with doped ferromagnetic cap and/or underlayer

#45
20150002959
2015-01-01

Data writer with flux density insert

#46
20140377589
2014-12-25

Narrow read-gap head with recessed afm

#47
20140272471
2014-09-18

Write head having non-magnetic write gap seed layer, and method

#48
20140268415
2014-09-18

Main pole layer with at least tow sacrificial layers and a gap layer

#49
20130271866
2013-10-17

Microwave assisted magnetic recording head having spin torque oscillator, and magnetic recording apparatus

#50
20130244192
2013-09-19

Magnetic sensor manufacturing

#51
20130069730
2013-03-21

Spin-torque oscillator

#52
20120314325
2012-12-13

Selectively magnetic write gap insert

#53
20120182646
2012-07-19

Perpendicular magnetic recording head provided with side shield and magnetic disk apparatus using the same

#54
20120176702
2012-07-12

Radio frequency magnetic field assisted recording head, head assembly, amd recording apparatus

#55
20120057257
2012-03-08

Perpendicular magnetic recoding head with a laminated pole

#56
20110249360
2011-10-13

Perpendicular magnetic recording head

#57
20110151279
2011-06-23

Magnetic write head manufactured by an enhanced damascene process producing a tapered write pole with a non-magnetic spacer and non-magnetic bump

#58
20110120878
2011-05-26

Method for manufacturing a perpendicular magnetic write head having a tapered write pole and non-magnetic bump structure

#59
20110019313
2011-01-27

Self-aligned double flux guided TMR sensor

#60
20110002199
2011-01-06

Near-field light generator comprising waveguide with inclined end surface

#61
20100227049
2010-09-09

Method for fabricating a magnetic head having selectively defined reader gap thicknesses

#62
20100061019
2010-03-11

Magnetic storage system with read during write

#63
20090269618
2009-10-29

Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing system

#64
20090168261
2009-07-02

HEAD SLIDER AND MAGNETIC STORAGE DEVICE

#65
20090021869
2009-01-22

Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing system

#66
20090021868
2009-01-22

Perpendicular magnetic recording head with a laminated pole

#67
20090017198
2009-01-15

Thin-film magnetic head, method of manufacturing the same, head Gimbal assembly, and hard disk drive

#68
20080259493
2008-10-23

Wire-assisted write device with high thermal reliability

#69
20080186637
2008-08-07

Reader shield/electrode structure

#70
20080112080
2008-05-15

Magnetic write head employing multiple magnetomotive force (MMF) sources

#71
20080094759
2008-04-24

Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield

#72
20080094750
2008-04-24

Perpendicular magnetic recording write head with a self aligned stitched write shield

#73
20080013210
2008-01-17

Thin-film magnetic head having magnetic layer with non-magnetic layer therewithin

#74
20070285835
2007-12-13

Magnetic writer including an electroplated high moment laminated pole

#75
20070268626
2007-11-22

Perpendicular magnetic recording head with side shield and magnetic disk apparatus

#76
20070268625
2007-11-22

Method for manufacturing a magnetic write head having a trailing shield with an accurately controlled trailing shield gap thickness

#77
20070091505
2007-04-26

Magnetic head having selectively defined reader gap thicknesses

#78
20070014049
2007-01-18

Perpendicular magnetic recording head having spacer layer in predetermined portion

#79
20070002502
2007-01-04

Reader shield/electrode structure for improved stray field and electrical performance

#80
20060262454
2006-11-23

Thin film magnetic head, method of manufacturing the same, and magnetic recording apparatus

#81
20060245109
2006-11-02

Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset

#82
20060203383
2006-09-14

Perpendicular magnetic recording head and method of manufacturing the same

#83
20060176613
2006-08-10

Magnetic head

#84
20060171072
2006-08-03

Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus

#85
20060164764
2006-07-27

Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing system

#86
20060119982
2006-06-08

Magnetic head having an antistripping layer for preventing a magnetic layer from stripping

#87
20060098338
2006-05-11

Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus

#88
20060092575
2006-05-04

Magnetic head and magnetic disk storage apparatus mounting the same

#89
20060092556
2006-05-04

Perpendicular hard disk drive resistive against external magnetic field

#90
20060061916
2006-03-23

Easily manufactured exchange bias stabilization scheme

#91
20050280939
2005-12-22

Thin-film magnetic head having a write shield layer

#92
20050280938
2005-12-22

Thin-film magnetic head, a head gimbal assembly and hard disk drive

#93
20050280937
2005-12-22

Magnetic head for perpendicular magnetic recording and method of manufacturing same

#94
20050280936
2005-12-22

Magnetic head for perpendicular magnetic recording and method of manufacturing same

#95
20050259356
2005-11-24

Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield

#96
20050254355
2005-11-17

Optical devices having transmission enhanced by surface plasmon mode resonance, and their use in data recording

#97
20050237666
2005-10-27

Magnetic write head with recessed overcoat

#98
20050233593
2005-10-20

Plating of multi-layer structures

#99
20050219746
2005-10-06

Stitched shielded pole structure for a perpendicular magnetic recording write head

#100
20050157433
2005-07-21

Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing system

#101
20050141149
2005-06-30

Method for fabricating a patterned, synthetic transverse exchange biased GMR sensor

#102
20050122638
2005-06-09

Method for fabricating a patterned, synthetic transversely exchanged biased GMR sensor

#103
20050122637
2005-06-09

Patterned, synthetic longitudinally exchange biased GMR sensor

#104
20050024760
2005-02-03

Perpendicular recording and read head assembly with in situ stand alone stabilizer for a magnetic medium underlayer

#105
20050018347
2005-01-27

Localized pole tip heating device for magnetic head for hard disk drive

#106
16781618
2021-06-22

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

#107
16598444
2020-12-15

Amplifying structure for microwave-assisted magnetic recording

#108
16564704
2020-11-10

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

#109
16372517
2020-07-14

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

#110
16243355
2020-08-18

Waveguide having reflector for heat-assisted magnetic recording head

#111
15901592
2019-10-15

Temperature control in a transducing head

#112
15442312
2017-10-31

Magnetic recording and reproducing device comprising a magnetic head including a trailing shield and first and second shields having alternating magnetic and nonmagnetic layers

#113
15245850
2017-10-03

Perpendicular magnetic recording writer having improved performance and wide area track erasure reliability

#114
15097182
2017-08-01

Magnetic recording write apparatus having a pole having an aspect ratio greater than one and an auxiliary pole

#115
14848391
2016-11-29

Perpendicular magnetic recording (PMR) writer with hybrid shield layers

#116
14847418
2016-10-11

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

#117
14752933
2016-08-02

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

#118
14290961
2015-05-26

Methods for providing magnetic storage elements with high magneto-resistance using Heusler alloys

#119
13923991
2016-06-07

Recording read heads with a multi-layer AFM layer methods and apparatuses