ClassID:

197853

G11B5/5521 - CPC Classification

Classification description:

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Disposition or mounting of heads relative to record carriers with provision for moving the head into or out of its operative position or across tracks; Track change, selection or acquisition by displacement of the head across disk tracks

Sub-classes:
Recent Application in this class:
#1
20260073950
2026-03-12

MAGNETIC DISC DEVICE

#2
20260073939
2026-03-12

DISK DEVICE

#3
20260004807
2026-01-01

DISK DRIVE ARM ACTUATOR WITH PIEZOELECTRIC ULTRASONIC MOTOR

#4
20250292793
2025-09-18

MAGNETIC DISK DEVICE

#5
20250201273
2025-06-19

HARD DISK DRIVE DISK MEDIA CURVATURE MITIGATION

#6
20250104735
2025-03-27

VOICE COIL MOTOR COMPOSITE MAGNET ASSEMBLY INCLUDING LOW-COERCIVITY MAGNETIC MATERIAL

#7
20240412762
2024-12-12

HARD DISK DRIVES WITH PIEZOELECTRIC ULTRASONIC MOTOR

#8
20240274159
2024-08-15

Extended center stiffener plate for improved structural dynamics of actuators in a multi-actuator hard disk drive

#9
20240250628
2024-07-25

AMPLIFIER CIRCUIT, MOTOR DRIVER CIRCUIT, POSITIONING DEVICE, AND HARD DISK DEVICE

#10
20240105220
2024-03-28

DISK DEVICE WITH COLUMN ATTACHED TO BASE AND COVER

#11
20230267952
2023-08-24

Data storage drive with dedicated erase transducer

#12
20230163708
2023-05-25

Motor driver circuit for linear motor, positioning device using the same, and hard disk device

#13
20230141116
2023-05-11

Voice coil motor yoke with annular groove in magnet bonding region and voice coil motor including same

#14
20200327911
2020-10-15

Methods and devices for reducing condensation in storage devices

#15
20200286513
2020-09-10

Parallel micro-actuator SSW writing

#16
20200265868
2020-08-20

Magnet for motor of magnetic storage device

#17
20200176025
2020-06-04

Pivot assembly bearing device and pivot assembly bearing device fabrication method

#18
20190279675
2019-09-12

Parallel micro-actuator SSW writing

#19
20190147909
2019-05-16

Disk drive having multiple disks accessible by a reduced number of read/write heads

#20
20180358039
2018-12-13

Split-shaft pivot for a dual-actuator hard disk drive

#21
20180358038
2018-12-13

Techniques for reducing dynamic coupling of system modes in a dual actuator hard disk drive

#22
20180079893
2018-03-22

Low wear debris polyoxymethylene composition and a ramp made of such polyoxymethylene composition suitable for various HDD designs

#23
20160284371
2016-09-29

Apparatus, systems and processes for reducing a hard disk drive's access time and concomitant power optimization

#24
20160118071
2016-04-28

PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS USING THE SAME

#25
20150255100
2015-09-10

Apparatus, systems and processes for reducing a hard disk drive's access time and concomitant power optimization

#26
20150172810
2015-06-18

Disc drive speaker vibration mitigation

#27
20150138676
2015-05-21

Apparatus, systems and processes for reducing a hard disk drive's access time and concomitant power optimization

#28
20150116863
2015-04-30

Adaptive guard band for multiple heads of a data storage device

#29
20130293979
2013-11-07

System, method and apparatus for master pattern generation, including servo patterns, for ultra-high density discrete track media using E-beam and self-assembly of block copolymer microdomains

#30
20130030743
2013-01-31

Method for identifying high-speed frequency response of multirate system and apparatus therefor

#31
20120182848
2012-07-19

Data storage

#32
20120120529
2012-05-17

VOICE-COIL MOTOR WITH FLUX GUIDE CONFIGURED TO REDUCE HEAD VIBRATIONS IN A DISK DRIVE

#33
20110304938
2011-12-15

Rolling bearing, bearing device and information recording and reproducing device

#34
20110175629
2011-07-21

Lateral displacement and rotational displacement sensor

#35
20100208384
2010-08-19

Multi-head array hard drive

#36
20100208383
2010-08-19

Data storage apparatus and method

#37
20100182716
2010-07-22

Disk drive having multiple disk surfaces accessible by a read/write head and nonvolatile memory for continuous data transfer

#38
20100165512
2010-07-01

System, method and apparatus for master pattern generation, including servo patterns, for ultra-high density discrete track media using e-beam and self-assembly of block copolymer microdomains

#39
20100134921
2010-06-03

STORAGE DEVICE

#40
20100134912
2010-06-03

LUBRICANT DISTRIBUTION IN HARD DISK DRIVES USED FOR DIGITAL VIDEO RECORDERS

#41
20100039733
2010-02-18

Pivot-carriage having a center-bore with an integrated bearing-spacer portion

#42
20100017633
2010-01-21

MEMORY DEVICE, CONTROL DEVICE FOR MEMORY DEVICE, AND CONTROL METHOD FOR MEMORY DEVICE

#43
20090262462
2009-10-22

STORAGE APPARATUS

#44
20090223040
2009-09-10

Tool for loading a head onto a disk of a hard disk drive

#45
20090219642
2009-09-03

Magnetic disk apparatus and data storage method

#46
20090190251
2009-07-30

Recording method for a disk device having recording regions different in recording density

#47
20090073614
2009-03-19

Voice Coil Motor

#48
20090046392
2009-02-19

Voice coil motor and hard disk drive with the same

#49
20080291567
2008-11-27

Post-assembly head/disk offset adjuster

#50
20080291563
2008-11-27

Torsion compensation coil for voice coil motor of disk drive device, and method of making the same

#51
20080231996
2008-09-25

VOICE COIL MOTORS AND MAGNETIC CIRCUITS THEREFOR

#52
20080186616
2008-08-07

Hard disk drive

#53
20080174917
2008-07-24

Resonant frequency separation for an actuator assembly of a disc drive

#54
20080174901
2008-07-24

Actuator unit, driving device for information recording/reading head, information recording/reading apparatus, and method for driving the actuator unit

#55
20080174900
2008-07-24

High-order hybrid actuator controller

#56
20080144209
2008-06-19

Hard disk drive and command execution method

#57
20080094757
2008-04-24

Fluidic stripper assembly with load/unload ramp

#58
20080068757
2008-03-20

Head stack assembly with spacers to partition drive arms

#59
20070297086
2007-12-27

HDD write control method and apparatus

#60
20070156396
2007-07-05

System and method for state space control of seek acoustics

#61
20070145971
2007-06-28

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

#62
20070143986
2007-06-28

Method for loading single head in a hard disk drive

#63
20070086118
2007-04-19

Coil support structure and magnetic disk drive

#64
20060190681
2006-08-24

Scheduler for a disc drive apparatus

#65
20060156323
2006-07-13

Pickup unit homing mechanism for a disk drive unit

#66
20060028759
2006-02-09

Apparatus and method to improve read/write speed of disk drive system

#67
20050280945
2005-12-22

Fluidic stripper assembly with load/unload ramp

#68
20050270683
2005-12-08

Magnetic disk apparatus and position control method for magnetic head slider thereof

#69
20050264943
2005-12-01

Hard disk driving carriage and method of producing the same

#70
20050248878
2005-11-10

Flow modification for reducing track misregistration in hard disk drives

#71
20050248877
2005-11-10

Pivot shaft fixing structure with projection integral with cover member and data storage device having the same

#72
20050237672
2005-10-27

Method for manufacturing a head stack assembly

#73
20050201000
2005-09-15

Sensing a prior transducer position by a motion pattern

#74
20050190481
2005-09-01

System and method for correcting for head tilt in HDD

#75
20050157428
2005-07-21

Actuator for a disk drive having a suspension assembly including a flexure of a monolithic structure and a limiter

#76
20050146848
2005-07-07

Method for loading single head in a hard disk drive

#77
20050125194
2005-06-09

Method of determining the mass unbalance of an actuator

#78
20050114597
2005-05-26

Disk array device for idle seek

#79
20050094312
2005-05-05

Disk drive and electronic device provided with the same

#80
20050052776
2005-03-10

Magnetic disk apparatus and position control method for magnetic head slider thereof

#81
20050052774
2005-03-10

Efficient notch coefficient computation for a disc drive control system using fixed point math

#82
20050013027
2005-01-20

Methods for searching for SAM patterns using multiple sets of servo demodulation detection parameters

#83
17479679
2022-11-01

Ball bearing cartridge for linear actuator

#84
17016326
2021-11-16

Brake crawler for elevator-type hard disk drives

#85
16537311
2020-08-11

Magnetic disk device having coupling observers for reducing coupling issues between independently running multi-actuators

#86
16359941
2021-01-12

Central support for improved structural dynamics of actuators in a multi-actuator hard disk drive

#87
15616136
2019-06-25

Reducing vibration transmission in a dual actuator disk drive utilizing a single pivot shaft

#88
15583727
2018-05-22

Shingled magnetic recording storage system improving command completion time

#89
15417894
2017-10-03

Contact induced data storage device destruction

#90
15294946
2017-08-15

Method and apparatus for writing test tracks on a magnetic recording medium

#91
15263679
2018-01-09

Heat-assisted magnetic recording device capable of laser calibration during a background operation

#92
15199920
2017-01-24

Actuator limiters for multiple disk-stack, shared actuator hard disk drive

#93
14522451
2015-09-08

Data management for data storage device with different track density regions

#94
14245902
2017-01-31

Position error signal (PES) detection

#95
14169514
2016-01-05

Per wedge preheat DFH to improve data storage device performance

#96
13923024
2015-09-29

Disk drive compensating for microactuator gain variations