ClassID:

197942

G11B5/70642 - CPC Classification

Classification description:

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides

Recent Application in this class:
#1
20240371405
2024-11-07

Magnetic recording medium having a core part level difference

#2
20240161778
2024-05-16

Magnetic recording medium having controlled change in average width and cartridge

#3
20230290376
2023-09-14

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#4
20230290375
2023-09-14

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#5
20230238026
2023-07-27

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#6
20230238025
2023-07-27

Magnetic recording medium having characterized vertical SFD, magnetic tape cartridge, and magnetic recording reproducing device

#7
20230108104
2023-04-06

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#8
20230100028
2023-03-30

Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device

#9
20230075546
2023-03-09

MAGNETIC RECORDING MEDIUM

#10
20220005634
2022-01-06

Magnetic powder, manufacturing method of magnetic powder, and magnetic recording medium

#11
20210375314
2021-12-02

Recording device and recording method

#12
20210287714
2021-09-16

Method of producing a magnetic powder and method of producing a magnetic recording medium

#13
20210287713
2021-09-16

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#14
20210287711
2021-09-16

Magnetic tape having characterized coefficient of variation of e-iron oxide powder particle size, magnetic tape cartridge, and magnetic recording and reproducing apparatus

#15
20210287710
2021-09-16

MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS

#16
20210287709
2021-09-16

MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS

#17
20210287708
2021-09-16

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#18
20210287707
2021-09-16

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#19
20210287706
2021-09-16

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#20
20210287705
2021-09-16

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

#21
20210233564
2021-07-29

Magnetic recording medium, magnetic recording and reproducing apparatus, magnetic tape cartridge, and magnetic tape cartridge group

#22
20210027807
2021-01-28

Method of producing magnetic powder and method of producing magnetic recording medium

#23
20210027806
2021-01-28

Recording method, recording device, reproduction method, reproduction device, and high-speed response element

#24
20210020197
2021-01-21

Magnetic recording medium

#25
20210020196
2021-01-21

Magnetic recording medium having controlled dimensional variation

#26
20200411043
2020-12-31

Magnetic recording medium having controlled dimensional variation

#27
20200365177
2020-11-19

Magnetic recording medium

#28
20200312359
2020-10-01

E-iron oxide powder, composition including the same, magnetic recording medium, and magnetic recording and reproducing device

#29
20200303104
2020-09-24

Magnetic powder, method for production thereof, and magnetic recording medium

#30
20200279582
2020-09-03

Magnetic recording medium, manufacturing method of ϵ-type iron oxide particles, and manufacturing method of magnetic recording medium

#31
20200098390
2020-03-26

Magnetic recording medium

#32
20200066302
2020-02-27

Magnetic recording medium having controlled coercive force ratio

#33
20190362753
2019-11-28

Magnetic recording medium having -iron oxide-containing particles

#34
20190304496
2019-10-03

Magnetic recording medium, manufacturing method of particles of epsilon type iron oxide-based compound, and manufacturing method of magnetic recording medium

#35
20190295584
2019-09-26

Magnetic recording medium having a recording layer including epsilon-iron oxide

#36
20190287562
2019-09-19

Coating-type magnetic recording medium for heat-assisted recording, and heat-assisted magnetic recording apparatus and heat-assisted magnetic recording method using the same

#37
20190228800
2019-07-25

Magnetic powder, method of producing the same, and magnetic recording medium

#38
20190096551
2019-03-28

Core-shell particle, fired product of core-shell particle, manufacturing method of core-shell particle, epsilon type iron oxide-based compound particle, manufacturing method of epsilon type iron oxide-based compound particle, magnetic recording medium, and manufacturing method of magnetic recording medium

#39
20190066723
2019-02-28

Magnetic recording medium having cubic ferrite or e-phase iron oxide magnetic particles

#40
20180366151
2018-12-20

Oriented body, method for producing the same, device for producing the same, and magnetic recording medium

#41
20180358156
2018-12-13

Magnetic powder, manufacturing method of magnetic powder, and magnetic recording medium

#42
20180358046
2018-12-13

Magnetic recording medium

#43
20180358045
2018-12-13

Magnetic powder, manufacturing method of magnetic powder, and magnetic recording medium

#44
20180358044
2018-12-13

MAGNETIC RECORDING MEDIUM

#45
20180350398
2018-12-06

High recording density magnetic recording medium and recording/reproduction mechanism for the same

#46
20180226093
2018-08-09

Magnetic recording medium

#47
20180208479
2018-07-26

Method for producing iron-based oxide magnetic particle powder

#48
20180186654
2018-07-05

ε-iron oxide type ferromagnetic powder

#49
20180182422
2018-06-28

Magnetic recording medium

#50
20180151277
2018-05-31

E-iron oxide type ferromagnetic powder, method for manufacturing same, and composition containing e-iron oxide type ferromagnetic powder

#51
20180147626
2018-05-31

ϵ-iron oxide type ferromagnetic powder and magnetic recording medium

#52
20180033528
2018-02-01

Surface-modified iron-based oxide magnetic particle powder

#53
20180005737
2018-01-04

Iron-based oxide magnetic particle powder, method for producing same, coating material, and magnetic recording medium

#54
20170349448
2017-12-07

Oriented body containing e-iron oxide, method for producing the same, and device for producing the same

#55
20170330661
2017-11-16

Magnetic powder, method for production thereof, and magnetic recording medium

#56
20170287516
2017-10-05

Iron-based oxide magnetic particle powder and method for producing iron-based oxide magnetic particle powder

#57
20170221513
2017-08-03

Magnetic recording medium using ϵ-iron oxide particle magnetic powder

#58
20170162220
2017-06-08

Magnetic recording medium having cubic ferrite or e-phase iron oxide magnetic particles

#59
20150111066
2015-04-23

MAGNETIC RECORDING MEDIUM

#60
20140219069
2014-08-07

Particulate magnetic recording medium and magnetic recording device

#61
20120100064
2012-04-26

Process for production of magnetic thin film, magnetic thin film, and magnetic material

#62
20120042750
2012-02-23

PROCESS FOR PRODUCING MAGNETIC METAL PARTICLES FOR MAGNETIC RECORDING, AND MAGNETIC RECORDING MEDIUM

#63
20100062283
2010-03-11

Magnetic material

#64
20100055500
2010-03-04

OXIDE FINE PARTICLE POWDER AND PROCESS FOR ITS PRODUCTION, AND MAGNETIC RECORDING MEDIUM

#65
20100035087
2010-02-11

PROCESS FOR PRODUCING FERROMAGNETIC METAL PARTICLES AND MAGNETIC RECORDING MEDIUM

#66
20090202867
2009-08-13

PROCESS FOR PRODUCING MAGNETIC METAL PARTICLES FOR MAGNETIC RECORDING, AND MAGNETIC RECORDING MEDIUM

#67
20080057352
2008-03-06

Magnetic material

#68
20070218319
2007-09-20

Magnetic material, and memory and sensor using same

#69
20070111038
2007-05-17

Magnetic recording medium

#70
20060292403
2006-12-28

Spinel ferrimagnetic particles and magnetic recording medium