ClassID:

119723

C22C33/0207 - CPC Classification

Classification description:

Making ferrous alloys by powder metallurgy Using a mixture of prealloyed powders or a master alloy

Sub-classes:
Recent Application in this class:
#1
20260120926
2026-04-30

R-T-B BASED PERMANENT MAGNET

#2
20260120925
2026-04-30

R-T-B BASED PERMANENT MAGNET AND METHOD OF MANUFACTURING THE SAME

#3
20250372287
2025-12-04

Grain Boundary Engineering of Sintered Magnetic Alloys And The Compositions Derived Therefrom

#4
20250101552
2025-03-27

Iron-Based Alloy Strengthened by Intermetallic Compound Phase-Coated Nano-Oxide Phase and Preparation Method Thereof

#5
20240363271
2024-10-31

R-T-B BASED PERMANENT MAGNET AND METHOD OF MANUFACTURING THE SAME

#6
20240274333
2024-08-15

LOW-COST HIGH-COERCIVITY LACE-RICH NEODYMIUM-IRON-BORON PERMANENT MAGNET, AND PREPARATION METHOD THEREFOR AND USE THEREOF

#7
20240200178
2024-06-20

STEEL, STEEL STRUCTURAL PART, ELECTRONIC DEVICE, AND STEEL STRUCTURAL PART PREPARATION METHOD

#8
20240194381
2024-06-13

Grain Boundary Engineering of Sintered Magnetic Alloys And The Compositions Derived Therefrom

#9
20240175111
2024-05-30

HIGH-STRENGHT AND HIGHT DUCTILITY STAINLESS STEEL BY ADDITIVE MANUFACTURING AND METHOD OF PREPARING THE SAME

#10
20240102139
2024-03-28

MARAGING STEEL

#11
20240096529
2024-03-21

SINTERED NEODYMIUM-IRON-BORON PERMANENT MAGNET, PREPARATION METHOD AND USE THEREOF

#12
20230332279
2023-10-19

STEEL HAVING HIGH MECHANICAL PROPERTIES AND MANUFACTURING PROCESS THEREOF

#13
20230154657
2023-05-18

Grain boundary engineering of sintered magnetic alloys and the compositions derived therefrom

#14
20230002875
2023-01-05

Preparation method of multi-functional marine engineering alloy

#15
20220363469
2022-11-17

Hopper for raw material powder and method for transferring raw material powder by using same

#16
20220344676
2022-10-27

Method of fabricating an interconnect for a fuel cell stack

#17
20220266338
2022-08-25

Magnetic elements and methods for the additive manufacture thereof

#18
20220161321
2022-05-26

IRON-BASED MIXED POWDER FOR POWDER METALLURGY AND IRON-BASED SINTERED BODY

#19
20220130607
2022-04-28

Additive manufacture of anisotropic rare earth magnets

#20
20210388473
2021-12-16

Iron alloy manufacturing method

#21
20210180164
2021-06-17

Alloyed steel powder

#22
20210178469
2021-06-17

Multi-scale and multi-phase dispersion strengthened iron-based alloy, and preparation and characterization methods thereof

#23
20210162498
2021-06-03

Sintered material and method of manufacturing sintered material

#24
20210138547
2021-05-13

Partially diffusion-alloyed steel powder

#25
20210002748
2021-01-07

Alloyed steel powder for powder metallurgy and iron-based mixed powder for powder metallurgy

#26
20200346284
2020-11-05

Chemically bonded amorphous interface between phases in carbon fiber and steel composite

#27
20200063230
2020-02-27

METHOD FOR MANUFACTURING A COMPONENT CONTAINING AN IRON ALLOY MATERIAL

#28
20200028050
2020-01-23

THERMOELECTRIC CONVERSION MATERIAL, THERMOELECTRIC CONVERSION MODULE, AND PRODUCTION METHOD OF THERMOELECTRIC CONVERSION MATERIAL

#29
20200024704
2020-01-23

Metal powder for powder metallurgy, compound, granulated powder, and sintered body

#30
20190390308
2019-12-26

Mixed powder for powder metallurgy, sintered body, and method for producing sintered body

#31
20190366435
2019-12-05

Magnetic elements and methods for the additive manufacture thereof

#32
20190351483
2019-11-21

MIXED POWDER FOR POWDER METALLURGY, SINTERED BODY, AND METHOD FOR PRODUCING SINTERED BODY

#33
20190264303
2019-08-29

Method of manufacturing an austenitic iron alloy

#34
20190257356
2019-08-22

Sintered bearing and manufacturing process therefor

#35
20190210105
2019-07-11

IRON-BASED SINTERED POWDER METAL FOR WEAR RESISTANT APPLICATIONS

#36
20190119788
2019-04-25

Nanocrystalline high temperature machine parts

#37
20190111618
2019-04-18

Indirect additive manufacturing process

#38
20190084043
2019-03-21

Method for producing components from a duplex steel, and components produced using said method

#39
20190071752
2019-03-07

Metal or alloy with improved physical and electrical properties

#40
20190057801
2019-02-21

Coil component

#41
20190051434
2019-02-14

Grain boundary engineering of sintered magnetic alloys and the compositions derived therefrom

#42
20190013123
2019-01-10

Soft magnetic alloy powder and dust core using same

#43
20180366743
2018-12-20

Method of fabricating an interconnect for a fuel cell stack

#44
20180326490
2018-11-15

Method of producing sintered and forged member

#45
20180282844
2018-10-04

METHOD OF PRODUCING WEAR-RESISTANT IRON-BASED SINTERED ALLOY

#46
20180272423
2018-09-27

Iron-based composite powder

#47
20180209311
2018-07-26

Tribological system, comprising a valve seat ring and a valve

#48
20180202029
2018-07-19

Iron-based powder for powder metallurgy and method for producing iron-based powder for powder metallurgy

#49
20180185917
2018-07-05

Fe-based sintered alloy and manufacturing method thereof

#50
20180119256
2018-05-03

Hard particles for incorporation in sintered alloy and wear-resistant iron-based sintered alloy and production method thereof

#51
20180094539
2018-04-05

Sintered alloy and manufacturing method thereof

#52
20180026171
2018-01-25

Thermoelectric conversion material

#53
20170349981
2017-12-07

Iron-based alloy powder for powder metallurgy, and sinter-forged member

#54
20170294254
2017-10-12

Amorphous soft magnetic alloy and inductance component using the same

#55
20170162308
2017-06-08

Alloy powder and magnetic component

#56
20170159156
2017-06-08

Iron-based alloy coating and method for manufacturing the same

#57
20170103837
2017-04-13

NdFeB magnet containing cerium and manufacturing method thereof

#58
20170081747
2017-03-23

Sintered alloy and manufacturing method thereof

#59
20160333456
2016-11-17

Valve seat

#60
20160318252
2016-11-03

Method of three-dimensional printing using a multi-component build powder

#61
20160301279
2016-10-13

Method for manufacturing sintered bearing, sintered bearing, and vibration motor equipped with same

#62
20160289804
2016-10-06

Sintered alloy and production method therefor

#63
20160215374
2016-07-28

Vanadium-containing powder metallurgical powders and methods of their use

#64
20160201155
2016-07-14

Method for manufacturing a component containing an iron alloy material

#65
20160175929
2016-06-23

Process for additive manufacturing of parts by melting or sintering particles of powder(s) using a high-energy beam with powders adapted to the targeted process/material pair

#66
20160052059
2016-02-25

Compact for producing a sintered alloy, a wear-resistant iron-based sintered alloy, and a method for producing the same

#67
20160027564
2016-01-28

METHOD FOR PRODUCING RFeB SYSTEM SINTERED MAGNET AND RFeB SYSTEM SINTERED MAGNET PRODUCED BY THE SAME

#68
20150314372
2015-11-05

Iron-based powder for powder metallurgy

#69
20150275343
2015-10-01

Iron-base sintered alloy material for valve seat insert and method for manufacturing the same

#70
20150211097
2015-07-30

Hard particles for incorporation in sintered alloy and wear-resistant iron-based sintered alloy and production method thereof

#71
20150093280
2015-04-02

Metal powder and use thereof

#72
20150053037
2015-02-26

Sintered member, pinion gear for starters, and production method therefor

#73
20140360635
2014-12-11

Method for producing a fragment / reactive material assembly

#74
20140301886
2014-10-09

Iron-based sintered powder metal for wear resistant applications

#75
20140294655
2014-10-02

Method and device for preparing a sintered Nd—Fe—B permanent magnet

#76
20140286811
2014-09-25

Fe-based sintered alloy and manufacturing method thereof

#77
20140248174
2014-09-04

Sintered alloy and manufacturing method thereof

#78
20140096858
2014-04-10

Apparatus for manufacturing compound powder, method of manufacturing iron-boron compound powder by using the apparatus, boron alloy powder mixture, method of manufacturing the boron alloy powder mixture, combined powder structure, method of manufacturing the combined powder structure, steel pipe, and method of manufacturing the steel pipe

#79
20130113578
2013-05-09

Method for manufacturing resonance tube, resonance tube, and filter

#80
20130101244
2013-04-25

Oil-impregnated sintered bearing and production method therefor

#81
20130084204
2013-04-04

Method of making Nd—Fe—B sintered magnets with reduced dysprosium or terbium

#82
20130065073
2013-03-14

Metal powder for selective laser sintering, method for manufacturing three-dimensional shaped object by using the same, and three-dimensional shaped object obtained therefrom

#83
20130058825
2013-03-07

SINTERED ALLOY AND MANUFACTURING METHOD THEREOF

#84
20130028780
2013-01-31

Iron-based sintered powder metal for wear resistant applications

#85
20120304821
2012-12-06

HARD PARTICLES FOR BLENDING IN SINTERED ALLOY, WEAR-RESISTANT IRON-BASED SINTERED ALLOY CONTAINING HARD PARTICLES, VALVE SEAT FORMED OF SINTERED ALLOY, AND PROCESS FOR MANUFACTURING HARD PARTICLES

#86
20120255398
2012-10-11

Vanadium-containing powder metallurgical powders and methods of their use

#87
20120219451
2012-08-30

Methods for preparing metallurgical powder compositions and compacted articles made from the same

#88
20120189484
2012-07-26

Process for producing an interconnector of a high-temperature fuel cell

#89
20120138844
2012-06-07

Iron powder coated with Mg-containing oxide film

#90
20120132033
2012-05-31

METAL POWDER

#91
20120085201
2012-04-12

IRON-BASED MIXED POWDER FOR POWDER METALLURGY

#92
20120037070
2012-02-16

Discharge surface treatment electrode and method of manufacturing the same

#93
20110286874
2011-11-24

SINTERED 17-4PH STEEL PART AND METHOD FOR FORMING

#94
20110206551
2011-08-25

FERROUS SINTERED ALLOY AND PROCESS FOR PRODUCING THE SAME AS WELL AS FERROUS-SINTERED-ALLOY MEMBER

#95
20110143261
2011-06-16

Shaped part

#96
20110104476
2011-05-05

Soft magnetic material, motor core, transformer core, and method for manufacturing soft magnetic material

#97
20110101263
2011-05-05

SOLVENT-DISPERSIBLE PARTICLE, FABRICATION METHOD THEREOF, AND DISPERSION

#98
20110091344
2011-04-21

Iron-based sintered powder metal for wear resistant applications

#99
20110070620
2011-03-24

Substrates comprising switchable ferromagnetic nanoparticles

#100
20110057756
2011-03-10

Rare Earth Composite Magnets with Increased Resistivity

#101
20110020661
2011-01-27

Fe—Si—La alloy having excellent magneto-caloric properties

#102
20110017050
2011-01-27

Slug for industrial ballistic tool

#103
20110000457
2011-01-06

Prealloyed copper powder forged connecting rod

#104
20100316521
2010-12-16

LOW ALLOYED STEEL POWDER

#105
20100310405
2010-12-09

FERROUS SINTERED ALLOY, PROCESS FOR PRODUCING FERROUS SINTERED ALLOY AND CONNECTING ROD

#106
20100278681
2010-11-04

Iron-based steel powder composition, method for producing a sintered component and component

#107
20100233014
2010-09-16

Iron-based powder combination

#108
20100196188
2010-08-05

Method of producing a steel moulding

#109
20100116088
2010-05-13

High-strength composition iron powder and sintered part made therefrom

#110
20100097171
2010-04-22

Soft magnetic alloy, magnetic part using soft magnetic alloy, and method of manufacturing same

#111
20100061879
2010-03-11

Metal powder

#112
20090269235
2009-10-29

Production method for sintered machine components

#113
20090208361
2009-08-20

Direct to metal sintering of 17-4PH steel

#114
20090174512
2009-07-09

Iron powder coated with Mg-containing oxide film

#115
20090142010
2009-06-04

SINTERED METAL MATERIAL, SINTERED OIL-IMPREGNATED BEARING FORMED OF THE METAL MATERIAL, AND FLUID LUBRICATION BEARING DEVICE

#116
20090139509
2009-06-04

Cutting tip, method for making the cutting tip and cutting tool

#117
20090129964
2009-05-21

METHOD OF FORMING POWDER METAL COMPONENTS HAVING SURFACE DENSIFICATION

#118
20090123690
2009-05-14

Metallic Powder Mixtures

#119
20090092848
2009-04-09

Sintered composite sliding part and production method therefor

#120
20080317620
2008-12-25

Rare earth element magnet

#121
20080302209
2008-12-11

Metallurgical powder composition

#122
20080251507
2008-10-16

Hardfacing ferroalloy materials

#123
20080095654
2008-04-24

Manufacture of clutch components

#124
20080089801
2008-04-17

Iron-Based Powder Combination

#125
20080078475
2008-04-03

Cold-work tool steel article

#126
20080078474
2008-04-03

Magnetic core using amorphous soft magnetic alloy

#127
20080075968
2008-03-27

Specific chromium, molybdenum and carbon iron-based metallurgical powder composition capable of better compressibility and method of production

#128
20080053574
2008-03-06

Cold work steel and manufacturing method thereof

#129
20070292301
2007-12-20

Making Sintered, Iron-Based Alloy Parts By Using Boron-Containing Master Alloys

#130
20070231180
2007-10-04

Metallic powder for powder metallurgy whose main component is iron and iron-based sintered body

#131
20070196231
2007-08-23

Production method for soft magnetic sintered member

#132
20070186722
2007-08-16

Methods for preparing metallurgical powder compositions and compacted articles made from the same

#133
20070175545
2007-08-02

Amorphous soft magnetic alloy and inductance component using the same

#134
20070175544
2007-08-02

Alloy lump for R-T-B type sintered magnet, producing method thereof, and magnet

#135
20070172379
2007-07-26

Slug for industrial ballistic tool

#136
20070169585
2007-07-26

Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy

#137
20070089562
2007-04-26

Mixed powder for powder metallurgy

#138
20070065328
2007-03-22

Powder metallurgical compositions and methods for making the same

#139
20060222554
2006-10-05

Diffusion bonded nickel-copper powder metallurgy powder

#140
20060207386
2006-09-21

Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy

#141
20060192323
2006-08-31

Process for producing a molding

#142
20060165548
2006-07-27

Method for producing a moulded body from sintered steel

#143
20060104848
2006-05-18

Method for manufacturing Fe-based sintered alloy member having excellent dimensional accuracy, strength and sliding performance

#144
20060099105
2006-05-11

Pre-alloyed iron based powder

#145
20060099079
2006-05-11

Iron-based sintered alloy, iron base sintered alloy member, method for production thereof, and oil pump rotor

#146
20060090592
2006-05-04

Liquid, its use for the preparation of powder mixtures on the basis of iron or stainless steel as well as a method for the preparation of powder mixtures on the basis of iron or stainless steel

#147
20060081089
2006-04-20

Sintered alloys for cam lobes and other high wear articles

#148
20060073065
2006-04-06

Iron based sintered body excellent in enveloped casting property in light metal alloy and method for producing the same

#149
20060073064
2006-04-06

Method of controlling the dimensional change when sintering an iron-based powder mixture

#150
20060032328
2006-02-16

Sintered valve guide and manufacturing method thereof

#151
20060000310
2006-01-05

Powder additive

#152
20050276716
2005-12-15

Method and composition for dispersing extra-fine nickel powder

#153
20050265884
2005-12-01

Sliding component and method for manufacturing the same

#154
20050254987
2005-11-17

Binder for powder metallurgical compositions

#155
20050252338
2005-11-17

Iron-based sintered alloy with dispersed hard particles

#156
20050244295
2005-11-03

Sintered metal parts and method for the manufacturing thereof

#157
20050220657
2005-10-06

Powder metallurgical compositions and methods for making the same

#158
20050193861
2005-09-08

Iron-based sintered alloy material for valve seat

#159
20050132842
2005-06-23

Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy

#160
20050118053
2005-06-02

Process for complex transient liquid phase sintering of powder metal

#161
20050063856
2005-03-24

Manufacturing processes of sintered alloy and oil-impregnated sintered bearing

#162
20050039576
2005-02-24

Alloy steel powder for powder metallurgy