Patents-Review.com
ClassID:

199290 ⎘

G11B2220/2508 - CPC Classification

Classification description:

Record carriers by type; Disc-shaped record carriers characterised in that the disc is based on a specific recording technology Magnetic discs

Sub-classes:
Recent Application in this class:
#1
20250118331
2025-04-10

DISK DEVICE

 #2
20240062778
2024-02-22

Disk device

 #3
20230078768
2023-03-16

Magnetic disk device stored trace data of the read/write processing

 #4
20220301585
2022-09-22

Disk device

 #5
20220254371
2022-08-11

Magnetic disk device

 #6
20220122634
2022-04-21

Disk device with base and first and second covers

 #7
20210327461
2021-10-21

Magnetic disk device

 #8
20210319806
2021-10-14

Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk

 #9
20210174828
2021-06-10

Disk device

 #10
20210074324
2021-03-11

Disk device with base and first and second covers

 #11
20210065737
2021-03-04

Magnetic disk device and data protection method thereof

 #12
20200327903
2020-10-15

Disk device

 #13
20200302961
2020-09-24

Magnetic disk device having multiple independent moving actuators

 #14
20200302955
2020-09-24

Magnetic disk device

 #15
20200258540
2020-08-13

Disk device

 #16
20200251137
2020-08-06

Disk device with base and cover

 #17
20200082847
2020-03-12

Disk drive with base and cover

 #18
20190333533
2019-10-31

Assembly that enables reduction in disk to disk spacing

 #19
20190119423
2019-04-25

Polishing composition for magnetic disk substrate

 #20
20190119422
2019-04-25

Polishing composition for magnetic disk substrate

 #21
20190066728
2019-02-28

Magnetic disk device and write capable of detecting data errors and performing read-write verification thereof

 #22
20160148652
2016-05-26

Data storage device with wear level identification

 #23
20150206552
2015-07-23

Data recording medium and method for generating a reference clock signal

 #24
20150179204
2015-06-25

Thermally stable Au alloys as a heat diffusion and plasmonic underlayer for heat-assisted magnetic recording (HAMR) media

 #25
20150043100
2015-02-12

Storing random and sequential data on different track widths of a recording medium

 #26
20150024161
2015-01-22

Disk

 #27
20150015981
2015-01-15

System and method for disk sector failure prediction

 #28
20140300986
2014-10-09

Adaptive correction of symmetrical and asymmetrical saturation in magnetic recording devices

 #29
20140195877
2014-07-10

LDPC decoding with on the fly error recovery

 #30
20140189458
2014-07-03

Soft input, soft output mappers and demappers for block codes

 #31
20140043708
2014-02-13

Storing random and sequential data on different track widths of a recording medium

 #32
20140019680
2014-01-16

Data storage system, method of writing to storage in the data storage system, hard disk and method of forming the hard disk

 #33
20140009850
2014-01-09

Control method and system

 #34
20130182347
2013-07-18

Signal processing apparatus, signal processing method, and magnetic disk apparatus

 #35
20130176835
2013-07-11

Magnetic disk device, magnetic disk evaluation apparatus, and magnetic head

 #36
20130142022
2013-06-06

Data recording medium and method for generating a reference clock signal

 #37
20130077187
2013-03-28

Adaptive correction of symmetrical and asymmetrical saturation in magnetic recording devices

 #38
20130054663
2013-02-28

Determining coefficients for digital low pass filter given cutoff and boost values for corresponding analog version

 #39
20130049997
2013-02-28

Bit converter and bit conversion method

 #40
20130031296
2013-01-31

System and method for managing address mapping information due to abnormal power events

 #41
20120233524
2012-09-13

Low-density parity check codes for holographic storage

 #42
20120194946
2012-08-02

Information recording device and information recording method

 #43
20110185264
2011-07-28

LDPC decoding with on the fly error recovery

 #44
20110181981
2011-07-28

Method and system for rotational control of data storage devices

 #45
18768832
2025-07-01

Method and magnetic disk apparatus

 #46
16032741
2019-07-30

Applying a pre-erase or pre-condition field to a hard disk before writing data to the hard disk

 #47
15825342
2018-08-21

Data storage device employing multi-mode sensing circuitry for multiple head sensor elements