Patents-Review.com
ClassID:

201364 ⎘

H01F1/11 - CPC Classification

Classification description:

Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(FeO)] ferrites with hexagonal structure in the form of particles

Sub-classes:
Recent Application in this class:
#1
20250282637
2025-09-11

METHOD FOR PRODUCING COBALT FERRITE PARTICLES AND COBALT FERRITE PARTICLES PRODUCED BY SAME

 #2
20250197243
2025-06-19

COBALT FERRITE PARTICLE PRODUCTION METHOD AND COBALT FERRITE PARTICLES PRODUCED THEREBY

 #3
20240331903
2024-10-03

HETEROGENEOUS CORE-TYPE MAGNETIC COUPLING DEVICE

 #4
20240177896
2024-05-30

FERRITE SINTERED MAGNET AND MANUFACTURING METHOD THEREFOR

 #5
20240076764
2024-03-07

IRON NITRIDE COMPOSITIONS

 #6
20240033979
2024-02-01

Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

 #7
20230377784
2023-11-23

Enhanced Magnetic Properties Through Alignment of Non-Magnetic Constituents

 #8
20230303450
2023-09-28

Composite hexagonal ferrite materials

 #9
20230290547
2023-09-14

Ferrite sintered magnet, ferrite particles, bonded magnet, motor, and generator

 #10
20230193101
2023-06-22

Magnetizable abrasive particle and method of making the same

 #11
20230192508
2023-06-22

DISPERSED IRON OXIDE MAGNETIC POWDER SLURRY AND METHOD FOR PRODUCING SAME

 #12
20220406500
2022-12-22

Co-shelling of magnetic nanoparticles and quantum dots with oxide material

 #13
20220375663
2022-11-24

IRON-BASED OXIDE MAGNETIC POWDER AND METHOD FOR PRODUCING SAME

 #14
20220293338
2022-09-15

FERRITE SINTERED MAGNET AND METHOD FOR MANUFACTURING FERRITE SINTERED MAGNET

 #15
20220246338
2022-08-04

Calcined ferrite, and sintered ferrite magnet and its production method

 #16
20220194813
2022-06-23

METHOD FOR PRODUCING COBALT FERRITE PARTICLES AND COBALT FERRITE PARTICLES PRODUCED BY SAME

 #17
20220157498
2022-05-19

Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine

 #18
20220153902
2022-05-19

High verdet constant nanoparticles and methods for producing and using the same

 #19
20220098711
2022-03-31

Iron nitride compositions

 #20
20220061198
2022-02-24

Radio wave absorber

 #21
20220005634
2022-01-06

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

 #22
20210323873
2021-10-21

Composite hexagonal ferrite materials

 #23
20210304930
2021-09-30

Calcined ferrite, and sintered ferrite magnet and its production method

 #24
20210300779
2021-09-30

Iron based oxide magnetic powder and method for producing same

 #25
20210296032
2021-09-23

Ferrite sintered magnet

 #26
20210287714
2021-09-16

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

 #27
20210241950
2021-08-05

Iron oxide magnetic powder and manufacturing method therefor

 #28
20210118598
2021-04-22

Ferrite sintered magnet and rotary electrical machine comprising the same

 #29
20210090768
2021-03-25

Ferrite sintered magnet

 #30
20210035717
2021-02-04

Ferrite core and coil component comprising same

 #31
20210027807
2021-01-28

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

 #32
20200325074
2020-10-15

Composite hexagonal ferrite materials

 #33
20200312496
2020-10-01

Ferrite sintered magnet and rotary electrical machine comprising the same

 #34
20200312495
2020-10-01

Ferrite sintered magnet and rotating electric machine comprising the same

 #35
20200312494
2020-10-01

Ferrite sintered magnet and rotary electrical machine comprising the same

 #36
20200312493
2020-10-01

Ferrite sintered magnet and rotating electric machine comprising the same

 #37
20200286514
2020-09-10

Spinel ferrite magnetic powder and method for manufacturing the same

 #38
20200255339
2020-08-13

Ferrite sintered magnet

 #39
20200242875
2020-07-30

USE OF OXIDIC MAGNETIC PARTICLES FOR MAGNETIC MARKING OF METALS

 #40
20200198104
2020-06-25

Portable electrical tool equipped with a rotary transformer provided with coil having plasto-ferrite support

 #41
20200161035
2020-05-21

Magnetic powder for magnetic recording medium

 #42
20200143966
2020-05-07

Ferrite powder, resin composition, and molded body

 #43
20200105446
2020-04-02

SAMARIUM-IRON-BISMUTH-NITROGEN-BASED MAGNET POWDER AND SAMARIUM-IRON-BISMUTH-NITROGEN-BASED SINTERED MAGNET

 #44
20200099356
2020-03-26

Low frequency shield solutions with sputtered/sprayed absorber materials and/or absorber materials mixed in mold compound

 #45
20200026211
2020-01-23

Magnetic core material for electrophotographic developer, carrier for electrophotographic developer, and developer

 #46
20190333695
2019-10-31

MAGNETIC SENSORS PRINTING AND INTEGRATION: DESIGNS, MATERIALS, METHODS, AND PROCESSES

 #47
20190318856
2019-10-17

Ferrite sintered magnet, ferrite particles, bonded magnet, motor, and generator

 #48
20190304643
2019-10-03

Ferrite sintered magnet

 #49
20190304642
2019-10-03

FERRITE SINTERED MAGNET AND METHOD FOR MANUFACTURING THE SAME

 #50
20190300380
2019-10-03

Particles of β-iron oxyhydroxide-based compound, manufacturing method of the same, manufacturing method of particles of ϵ-iron oxide-based compound, and manufacturing method of magnetic recording medium

 #51
20190295590
2019-09-26

Magnetic tape and magnetic tape device

 #52
20190295582
2019-09-26

Ferromagnetic powder for magnetic recording and magnetic recording medium

 #53
20190267168
2019-08-29

Ferrite sintered magnet, motor and generator

 #54
20190267167
2019-08-29

Ferrite sintered magnet, motor and generator

 #55
20190252100
2019-08-15

Ferrite Magnetic Material And Ferrite Sintered Magnet

 #56
20190252099
2019-08-15

PROCESS AND MATERIALS FOR PRINTED MAGNETS

 #57
20190228889
2019-07-25

Epsilon-type iron oxide magnetic particles and method for producing the same, magnetic powder, magnetic coating material and magnetic recording medium containing magnetic particles

 #58
20190228800
2019-07-25

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

 #59
20190225491
2019-07-25

Method of purifying metal oxide particles and uses thereof

 #60
20190206594
2019-07-04

Ferrite magnet

 #61
20190122792
2019-04-25

Ferrite magnet

 #62
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

 #63
20190035522
2019-01-31

MAGNETIC POWDER AND METHOD FOR MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME

 #64
20190035521
2019-01-31

MAGNETIC SUBSTANCE, MAGNETIC TONER, AND MAGNETIC POWDER

 #65
20180366151
2018-12-20

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

 #66
20180358156
2018-12-13

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

 #67
20180358045
2018-12-13

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

 #68
20180350400
2018-12-06

Magnetic tape and magnetic tape device

 #69
20180277290
2018-09-27

Ferrite magnetic material and ferrite sintered magnet

 #70
20180277289
2018-09-27

Inverse Phase Allotrope Rare Earth Magnets

 #71
20180208479
2018-07-26

Method for producing iron-based oxide magnetic particle powder

 #72
20180186654
2018-07-05

ε-iron oxide type ferromagnetic powder

 #73
20180170767
2018-06-21

Epsilon iron oxide and method for producing the same, magnetic coating material and magnetic recording medium

 #74
20180166193
2018-06-14

Ferrite sheet, method for manufacturing same, and electronic component comprising same

 #75
20180151277
2018-05-31

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

 #76
20180057410
2018-03-01

Composite hexagonal ferrite materials

 #77
20180044568
2018-02-15

Crystal oriented ceramicscrystal oriented ceramics, the production process, and heat radiation material

 #78
20180033528
2018-02-01

Surface-modified iron-based oxide magnetic particle powder

 #79
20180008921
2018-01-11

Ferrite particles having outer shell structure used for filtering medium

 #80
20170355837
2017-12-14

Magnetic composition, covering comprising it and associated methods

 #81
20170349448
2017-12-07

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

 #82
20170316859
2017-11-02

Oxide superconducting bulk magnet

 #83
20170316857
2017-11-02

Ferrite powder for bonded magnets, method for producing the same and ferrite bonded magnet

 #84
20170309381
2017-10-26

Ferrite powder for bonded magnets, method for producing the same and ferrite bonded magnet

 #85
20170301440
2017-10-19

Ferrite powder for bonded magnets, method for producing the same and ferrite bonded magnet

 #86
20170287603
2017-10-05

Production method for metal oxide particles, metal oxide powder, and magnetic recording medium

 #87
20170287517
2017-10-05

Hexagonal ferrite powder and magnetic recording medium

 #88
20170287516
2017-10-05

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

 #89
20170221619
2017-08-03

Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

 #90
20170203908
2017-07-20

Using magnetism to secure the detachable spray-extension tube to an aerosol spray can to prevent misplacement or loss

 #91
20170137302
2017-05-18

Magnetic iron oxide nanopowder and process for producing the same

 #92
20170004912
2017-01-05

Method of manufacturing hexagonal ferrite powder, hexagonal ferrite powder, magnetic recording medium and method of manufacturing magnetic recording medium

 #93
20160379741
2016-12-29

Low-Cost Precursor for Synthesis of High Coercivity Fe-N Magnets

 #94
20160279855
2016-09-29

Method of making a flexible magnetized sheet

 #95
20160276076
2016-09-22

Magnetic tape

 #96
20160203893
2016-07-14

Magnetic hydrotalcite composite and production method thereof

 #97
20160141084
2016-05-19

Hexagonal ferrite magnetic powder for magnetic recording, method for producing hexagonal ferrite magnetic particles, and magnetic recording medium

 #98
20160039128
2016-02-11

Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

 #99
20150332819
2015-11-19

Method for producing sintered ferrite magnet, and sintered ferrite magnet

 #100
20150329851
2015-11-19

Binding a target substance

 #101
20150325350
2015-11-12

Sintered ferrite magnet and motor provided therewith

 #102
20150302880
2015-10-22

Magnetic powder and method of manufacturing the same

 #103
20150279408
2015-10-01

Hexagonal ferrite powder and magnetic recording medium

 #104
20150279406
2015-10-01

Method of manufacturing hexagonal ferrite powder, hexagonal ferrite powder, and magnetic recording medium

 #105
20150262741
2015-09-17

Calcined ferrite, sintered ferrite magnet and its production method

 #106
20150255198
2015-09-10

Sintered ferrite magnet and motor provided therewith

 #107
20150255197
2015-09-10

Sintered ferrite magnet and motor provided therewith

 #108
20150235748
2015-08-20

Sintered ferrite magnet and its production method

 #109
20150221424
2015-08-06

Sintered ferrite magnet and its production method

 #110
20150187472
2015-07-02

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

 #111
20150187471
2015-07-02

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

 #112
20150187380
2015-07-02

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

 #113
20150144832
2015-05-28

COBALT CARBIDE-BASED NANOPARTICLE PERMANENT MAGNET MATERIALS

 #114
20150125700
2015-05-07

Method for manufacturing Sr ferrite particle for sintered magnet, method for using Sr ferrite particle, Sr ferrite sintered magnet and method for manufacturing same, and motor and generator

 #115
20150123026
2015-05-07

Magnetic powder for magnetic recording medium

 #116
20150053883
2015-02-26

Sintered ferrite magnet and motor provided therewith

 #117
20150024236
2015-01-22

Soft magnetic exchange-coupled composite structure, and high-frequency device component, antenna module, and magnetoresistive device including the soft magnetic exchange-coupled composite structure

 #118
20150001437
2015-01-01

Non-rare earth magnetic nanoparticles

 #119
20140370290
2014-12-18

IRON NITRIDE BASED MAGNETIC POWDER AND MAGNET USING THE SAME

 #120
20140361214
2014-12-11

Ferrite magnetic material

 #121
20140356525
2014-12-04

Method of manufacturing magnetic recording medium

 #122
20140307322
2014-10-16

All-nanoparticle concave diffraction grating fabricated by self-assembly onto magnetically-recorded templates

 #123
20140295214
2014-10-02

Hexagonal ferrite magnetic particles, magnetic recording powder, and magnetic recording medium

 #124
20140291571
2014-10-02

Magnetoplumbite-type hexagonal ferrite

 #125
20140287270
2014-09-25

Hexagonal ferrite magnetic powder and magnetic recording medium

 #126
20140151595
2014-06-05

Method of manufacturing hexagonal ferrite magnetic particles, method of manufacturing magnetic coating material, and method of manufacturing magnetic recording medium

 #127
20140097378
2014-04-10

Ferrite magnetic material, ferrite magnet, and ferrite sintered magnet

 #128
20140054491
2014-02-27

Ferrite particle and production method thereof

 #129
20140011055
2014-01-09

Hexagonal ferrite magnetic particle and method of manufacturing the same, and magnetic recording medium

 #130
20130323161
2013-12-05

Method of manufacturing hexagonal ferrite magnetic powder and its usage

 #131
20130307653
2013-11-21

Magnetoplumbite-type ferrite magnetic material and segment-type permanent magnet derived therefrom

 #132
20130256584
2013-10-03

Hexagonal strontium ferrite magnetic powder and method of manufacturing the same, and magnetic recording medium and method of manufacturing the same

 #133
20130164563
2013-06-27

Magnetic particles and method of manufacturing the same, and usage thereof

 #134
20130108891
2013-05-02

Method of manufacturing magnetic powder

 #135
20130092867
2013-04-18

Method for producing sintered rare-earth magnet, sintered rare-earth magnet, and material for same

 #136
20130089909
2013-04-11

BINDING A TARGET SUBSTANCE

 #137
20130027160
2013-01-31

Sintered magnet and method for producing the sintered magnet

 #138
20120326074
2012-12-27

Sintered ferrite magnet and its production method

 #139
20120298908
2012-11-29

HEXAGONAL FERRITE MAGNETIC POWDER AND MAGNETIC RECORDING MEDIUM USING THE SAME

 #140
20120280167
2012-11-08

Ferrite magnetic material, ferrite magnet, and ferrite sintered magnet

 #141
20120251844
2012-10-04

MAGNETIC RECORDING POWDER AND METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM

 #142
20120244387
2012-09-27

Method of manufacturing hexagonal ferrite magnetic powder, magnetic recording medium and method of manufacturing the same

 #143
20120211910
2012-08-23

Rotating machine, bonded magnet, magnet roll, and method for producing sintered ferrite magnet

 #144
20120199782
2012-08-09

Hexagonal crystal ferrite magnetic powder for magnetic recording, method for producing the same, and magnetic recording medium using the powder

 #145
20120177951
2012-07-12

HEXAGONAL BARIUM FERRITE MAGNETIC PARTICLE AND METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM

 #146
20120168670
2012-07-05

Cobalt carbide-based nanoparticle permanent magnet materials

 #147
20120161910
2012-06-28

Ferrite magnetic material

 #148
20120161062
2012-06-28

Ferrite magnetic material

 #149
20120105185
2012-05-03

Method for producing sintered ferrite magnet, and sintered ferrite magnet

 #150
20120080638
2012-04-05

MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING-USE MAGNETIC POWDER AND METHOD OF PREPARING THE SAME

 #151
20120058003
2012-03-08

Nd-Fe-B PERMANENT MAGNETIC MATERIAL AND PREPARATION METHOD THEREOF

 #152
20120052286
2012-03-01

MAGNETIC-NANOPARTICLE-POLYMER COMPOSITES WITH ENHANCED MAGNETO-OPTICAL PROPERTIES

 #153
20120042750
2012-02-23

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

 #154
20120015189
2012-01-19

Ferrite powder for bonded magnet, method for manufacturing ferrite powder, and bonded magnet using ferrite powder

 #155
20110303869
2011-12-15

CUBIC OR OCTAHEDRAL SHAPED FERRITE NANOPARTICLES AND METHOD FOR PREPARING THEREOF

 #156
20110244272
2011-10-06

Hexagonal ferrite magnetic particle and method of manufacturing the same, and magnetic recording medium

 #157
20110133112
2011-06-09

Ferromagnetic compound magnet

 #158
20110024672
2011-02-03

Oxide-type, magnetic material and it's production method, and sintered ferrite magnet and it's production method

 #159
20100304187
2010-12-02

Hexagonal ferrite magnetic powder and method of manufacturing the same, and magnetic recording medium and method of manufacturing the same

 #160
20100246063
2010-09-30

Method of manufacturing hexagonal ferrite magnetic powder, magnetic recording medium and method of manufacturing the same

 #161
20100237273
2010-09-23

OXIDE MAGNETIC MATERIAL AND SINTERED MAGNET

 #162
20100155651
2010-06-24

Magnetically hard material

 #163
20100129540
2010-05-27

METHOD FOR THE PRODUCTION OF A MAGNETIC LAYER ON A SUBSTRATE AND PRINTABLE MAGNETIZABLE VARNISH

 #164
20100062283
2010-03-11

Magnetic material

 #165
20100047578
2010-02-25

Magnetic nanoparticles surface-modified with dithiocarbamate

 #166
20100021771
2010-01-28

METHOD OF MANUFACTURING HEXAGONAL FERRITE MAGNETIC POWDER, MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAME

 #167
20090314981
2009-12-24

Ferrite sintered magnet

 #168
20090273534
2009-11-05

Magnetic material antenna and ferrite sintered body

 #169
20090242164
2009-10-01

Method for producing sintered magnet

 #170
20090218540
2009-09-03

Rotating machine, bonded magnet, magnet roll, and method for producing sintered ferrite magnet

 #171
20090202867
2009-08-13

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

 #172
20090108970
2009-04-30

Process for production of magnet, magnet obtained thereby and production apparatus for molded articles for magnet

 #173
20090098411
2009-04-16

METHOD OF MANUFACTURING FERRITE POWDER, FERRITE POWDER, AND MAGNETIC RECORDING MEDIA

 #174
20090022992
2009-01-22

Oxide-type, magnetic material and its production method, and sintered ferrite magnet and its production method

 #175
20080292538
2008-11-27

Process for Producing Ferrite Sintered Body

 #176
20080226211
2008-09-18

Magnetic encoder and wheel support bearing assembly using the same

 #177
20080044346
2008-02-21

Use of a powder composition and a medium

 #178
20080003159
2008-01-03

Preparation method of magnetic and metal oxide nanoparticles

 #179
20070194269
2007-08-23

Oxide magnetic material and sintered magnet

 #180
20070099033
2007-05-03

Ferrite magnetic material and ferrite sintered magnet

 #181
20070023970
2007-02-01

Method for producing ferrite sintered magnet

 #182
20070009767
2007-01-11

Ferrite magnetic material and method for producing hexagonal w type ferrite magnetic material

 #183
20070007697
2007-01-11

Production method of tone wheel

 #184
20060292403
2006-12-28

Spinel ferrimagnetic particles and magnetic recording medium

 #185
20060284136
2006-12-21

Ferrite sintered magnet

 #186
20060263539
2006-11-23

Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom

 #187
20060188876
2006-08-24

Binding a target substance

 #188
20060172151
2006-08-03

Ferrite magnet powder, sintered magnet, bond magnet, and magnetic recording medium

 #189
20060163525
2006-07-27

Ferrite magnetic powder and method for production thereof

 #190
20060091352
2006-05-04

Ferrite magnetic material and process for producing the same

 #191
20050282043
2005-12-22

Hexagonal ferrite magnetic powder, process for producing the same, and magnetic recording medium

 #192
20050098761
2005-05-12

Anisotropic, sintered ferrite magnet and method for producing the same

 #193
16548020
2023-12-19

Strong non rare earth permanent magnets from double doped magnetic nanoparticles

 #194
15795346
2022-01-11

Electrostatically driven assembly of nanoparticle materials into dense films