ClassID:

197725

G11B5/147 - 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 with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets

Sub-classes:
Recent Application in this class:
#1
20250391430
2025-12-25

Dual Free Layer TMR Reader with Shaped Rear Bias and Methods of Forming Thereof

#2
20250232788
2025-07-17

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

#3
20210390977
2021-12-16

Seed layer for spin torque oscillator in microwave assisted magnetic recording device

#4
20210249038
2021-08-12

BiSb topological insulator with novel buffer layer that promotes a BiSb (012) orientation

#5
20210142822
2021-05-13

Write transducer with symmetric yoke structure

#6
20200327900
2020-10-15

Magnetic recording write head with selected write gap current direction for minimization of cross-track interference

#7
20200294535
2020-09-17

Magnetic recording device and magnetic head

#8
20200152228
2020-05-14

Process of forming a recessed spin flipping element in the write gap

#9
20190267029
2019-08-29

Magnetic recording write head with selected write gap current direction for minimization of cross-track interference

#10
20190259412
2019-08-22

Spin transfer torque (STT) device with multilayer seed layers for magnetic recording and memory

#11
20190180779
2019-06-13

Apparatus having sensors with hard spacers and low-contact-pressure head-tape interface

#12
20190180776
2019-06-13

Apparatus having an array of write transducers having a low friction interface

#13
20190180775
2019-06-13

Write transducers having high moment layer

#14
20190180774
2019-06-13

Write transducers having high moment layer

#15
20190178955
2019-06-13

Apparatus having low-contact-pressure head-tape interface

#16
20180366147
2018-12-20

Beaked write transducer

#17
20180254058
2018-09-06

MgO Based Perpendicular Spin Polarizer in Microwave Assisted Magnetic Recording (MAMR) Applications

#18
20180247668
2018-08-30

Write transducers having high moment layer

#19
20180247663
2018-08-30

Beaked write transducer

#20
20180025746
2018-01-25

Low magnetic flux density interface layer for spin torque oscillator

#21
20170092302
2017-03-30

Data reader with spin filter

#22
20160284365
2016-09-29

Devices including at least one multilayer adhesion layer

#23
20160275973
2016-09-22

DEVICES INCLUDING AN OVERCOAT THAT INCLUDES A LOW THERMAL CONDUCTIVITY LAYER

#24
20160218728
2016-07-28

Dual-side spin transfer spin torque oscillator

#25
20160171992
2016-06-16

PMR writer with non-conformal side gaps

#26
20160133290
2016-05-12

Write pole configuration

#27
20160118065
2016-04-28

MgO based perpendicular spin polarizer in microwave assisted magnetic recording (MAMR) applications

#28
20160071535
2016-03-10

Methods of manufacturing magnetic heads using a trigger reader electronic lapping guide

#29
20160035375
2016-02-04

Data storage device with phase lock spin-torque oscillation stabilization

#30
20150380017
2015-12-31

PARTIAL MAIN POLE LAMINATION FOR POLE ERASURE IMPROVEMENT

#31
20150213814
2015-07-30

Partial main pole lamination for pole erasure improvement

#32
20150085569
2015-03-26

Electric field ferromagnetic resonance excitation method and magnetic function element employing same

#33
20150002961
2015-01-01

SCISSOR MAGNETIC SENSOR HAVING A BACK EDGE SOFT MAGNETIC BIAS STRUCTURE

#34
20140355152
2014-12-04

INTERLAYER COUPLED FREE LAYER WITH OUT OF PLANE MAGNETIC ORIENTATION FOR MAGNETIC READ HEAD

#35
20140334032
2014-11-13

Antiferromagnetic (AFM) grain growth controlled random telegraph noise (RTN) suppressed magnetic head

#36
20140268423
2014-09-18

Dual-piece heat sink layer for robust reader in magnetic recording head

#37
20140177101
2014-06-26

MAGNETIC HEAD AND MAGNETIC RECORDING/REPRODUCTION APPARATUS

#38
20140177092
2014-06-26

MAMR head adapted for high speed switching

#39
20140168818
2014-06-19

READ SENSOR FOR RECORDING HEAD

#40
20140160598
2014-06-12

Magnetic head and magnetic head assembly having a spin torque oscillator

#41
20140146420
2014-05-29

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

#42
20140098441
2014-04-10

Perpendicular magnetic write head and magnetic recording device having additional magnetic layer contacting front yoke and shield

#43
20140078620
2014-03-20

Microwave-assisted magnetic recording head, method of manufacturing the same, magnetic head assembly using the same, and magnetic recording/reproduction apparatus

#44
20130329316
2013-12-12

Microwave assisted magnetic recording head and magnetic data storage apparatus

#45
20130321954
2013-12-05

MAGNETIC STRUCTURE FREE LAYER STABILIZATION

#46
20130271866
2013-10-17

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

#47
20120164487
2012-06-28

Write head pole laminate structure

#48
20120154955
2012-06-21

Magnetic structure free layer stabilization

#49
20120087042
2012-04-12

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

#50
20120057257
2012-03-08

Perpendicular magnetic recoding head with a laminated pole

#51
20110308074
2011-12-22

Method of manufacturing a perpendicular magnetic recording head laminated with AFM-FM phase change material

#52
20110249365
2011-10-13

Perpendicular magnetic recording write head with improved laminated main pole

#53
20090154014
2009-06-18

Thin film magnetic head and manufacturing method thereof

#54
20090141398
2009-06-04

MAGNETIC HEAD AND STORAGE APPARATUS

#55
20090073608
2009-03-19

Perpendicular magnetic recording head

#56
20090052092
2009-02-26

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

#57
20090021868
2009-01-22

Perpendicular magnetic recording head with a laminated pole

#58
20080291571
2008-11-27

MAGNETIC HEAD AND INFORMATION STORAGE DEVICE

#59
20080198508
2008-08-21

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING AND MAGNETIC DISK DRIVE

#60
20080107922
2008-05-08

Magnetic film for magnetic head

#61
20080102317
2008-05-01

Magnetic film for magnetic head

#62
20080075977
2008-03-27

Magnetic film, manufacturing method thereof and thin film magnetic head

#63
20080055775
2008-03-06

Magnetic head and information storage device

#64
20080037168
2008-02-14

Laminated magnetic structure for use in a perpendicular magnetic write head

#65
20070291408
2007-12-20

Magnetic head with a conductive underlayer above substrate

#66
20070188917
2007-08-16

Layered magnetic film and magnetic head

#67
20070146930
2007-06-28

Perpendicular recording head with floating-trailing shield extending around first and second sides of main pole piece

#68
20060262445
2006-11-23

Yoke structure with a step

#69
20060171071
2006-08-03

FeCoNi soft magnetic film including a controlled ratio of chlorine and sulfur

#70
20060103977
2006-05-18

Magnetic recording head having a pole structure formed on a same plane as and surrounded by a shield for reducing an antenna effect

#71
20060087766
2006-04-27

Thin film magnetic head with small track width

#72
20050229387
2005-10-20

Method of manufacturing magnetic head for perpendicular magnetic recording

#73
20050174686
2005-08-11

Yoke structure with a step

#74
20050174685
2005-08-11

Thin-film magnetic head having a cooling layer formed coplanar with a lower pole and from the same material as the lower pole

#75
20050122622
2005-06-09

Magnetic write head including a magnetic pole piece having a protrusion

#76
20050083606
2005-04-21

Write head design with improved bump to control write saturation

#77
20050068669
2005-03-31

Head for perpendicular recording with a floating trailing shield

#78
20050036236
2005-02-17

Thin film magnetic head with high Fe alloy plating film and manufacturing method thereof

#79
20050024765
2005-02-03

Method to make a planar writer with low D.C. coil resistance

#80
20050003234
2005-01-06

Magnetic film for magnetic head

#81
16656596
2020-03-31

System for transition curvature improvement on a thermally assisted magnetic recording

#82
16551085
2021-11-02

Methods of forming materials

#83
15984680
2019-07-02

Perpendicular magnetic recording (PMR) write head with patterned high moment trailing shield

#84
15652684
2018-10-23

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

#85
15631932
2018-12-18

Areal density capability improvement with spin-orbit torque based structures surrounding main pole tip

#86
15195876
2017-10-31

Low magnetic flux density interface layer for spin torque oscillator

#87
14925365
2016-11-08

Magnetic head including a main pole and a write shield to provide improved write characteristics without compromising the function of the write shield

#88
14808693
2016-04-12

Symmetrical STO for oscillation with both polarity bias

#89
14729403
2016-11-29

Shingle magnetic writer having a low sidewall angle pole

#90
14701187
2016-03-15

Write pole formed with evaporation deposition

#91
14673748
2016-01-26

Magnetic recording writer with a composite main pole

#92
14555484
2016-01-05

Low Bs spin-polarizer for spin torque oscillator

#93
14535481
2015-10-27

Write pole paddle

#94
14046790
2016-03-01

Process for making PMR writer with non-conformal side gaps

#95
14012979
2015-12-15

Method and system for providing a magnetic transducer having improved shield-to-shield spacing

#96
13968539
2015-12-22

Tuned horizontally symmetric magnetic stack

#97
13894281
2015-04-21

Method and system for providing an antiferromagnetically coupled return pole

#98
13631808
2016-10-25

Perpendicular magnetic recording write head