ClassID:

118919

C21D1/18 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering Hardening ; Quenching with or without subsequent tempering

Sub-classes:
Recent Application in this class:
#1
20260139708
2026-05-21

METHOD FOR PRODUCING A ROLLING BEARING COMPONENT

#2
20260132493
2026-05-14

PLATED STEEL SHEET

#3
20260132478
2026-05-14

HOT-WORKING DIE STEEL, HEAT TREATMENT METHOD AND HOT-WORKING MOLD

#4
20260124660
2026-05-07

PLATED STEEL SHEET FOR HOT PRESS FORMING, AND METHOD OF MANUFACTURING THE SAME

#5
20260117353
2026-04-30

STEEL COMPOSITION, MANUFACTURING METHOD, STEEL ARTICLE AND USES HEREOF

#6
20260110068
2026-04-23

HOT WORK TOOL STEEL

#7
20260110045
2026-04-23

460MPA-GRADE CORROSION RESISTANT STEEL PLATE AND PRODUCTION METHOD THEREFOR

#8
20260098315
2026-04-09

MARAGING STEEL, MEMBER, AND METHODS FOR MANUFACTURING THE SAME

#9
20260097429
2026-04-09

METHOD OF MANUFACTURING HOT PRESS-FORMED MEMBER HAVING EXCELLENT PRODUCTIVITY, WELDABILITY AND FORMABILITY

#10
20260097428
2026-04-09

COLD ROLLED STEEL SHEET FOR HOT-PRESS FORMING HAVING EXCELLENT SURFACE QUALITY, HOT-PRESS-FORMED MEMBER, AND METHOD FOR MANUFACTURING SAME

#11
20260092346
2026-04-02

HIGH STRENGTH HOT ROLLED STEEL SHEET

#12
20260078462
2026-03-19

STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING SAME

#13
20260063171
2026-03-05

Rolling Bearing and Rolling Element Production Method

#14
20260062782
2026-03-05

STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

#15
20260062781
2026-03-05

HIGH-STRENGTH OIL CASING RESISTANT TO CO2 AND MICROBIAL CORROSION AND MANUFACTURING METHOD THEREFOR

#16
20260049383
2026-02-19

HIGH-STRENGTH HOT ROLLED STEEL SHEET AND METHOD FOR PRODUCING THE SAME

#17
20260035775
2026-02-05

METHOD FOR PRODUCING AND PREPARING STEEL BAR FOR AUTOMOTIVE BUSHINGS BY MEANS OF ECOLOGICAL AND ECONOMICAL ARC FURNACE

#18
20260035762
2026-02-05

ANNEALING FACILITY, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET

#19
20260028708
2026-01-29

AUSTENITIC STAINLESS ALLOY WITH SUPERIOR CORROSION RESISTANCE

#20
20260028705
2026-01-29

HOT-ROLLED HIGH-STRENGTH STEEL STRIP

#21
20260015684
2026-01-15

METHOD OF MANUFACTURING A STAINLESS STEEL SHEET

#22
20260009098
2026-01-08

Steel Composition for Expandable Tubular Articles, Expandable Tubular Article Having This Steel Composition, Manufacturing Method Thereof and Use Thereof

#23
20250389007
2025-12-25

120-KG-GRADE ULTRAHIGH-STRENGTH GALVANIZED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#24
20250388990
2025-12-25

HOT-ROLLED COMPLEX-PHASE STEEL WITH 800-MPA-GRADE TENSILE STRENGTH AND MANUFACTURING METHOD THEREFOR

#25
20250382689
2025-12-18

STAINLESS STEEL SEAMLESS PIPE AND PRODUCTION METHOD THEREFOR

#26
20250382680
2025-12-18

Steel part having high strength and high bendability

#27
20250382678
2025-12-18

QUENCHING METHOD AND RESTRAINT QUENCHING DEVICE

#28
20250376751
2025-12-11

SURFACE TREATED STEEL MATERIAL

#29
20250376739
2025-12-11

HIGH HOLE EXPANSION STEEL AND METHOD FOR MANUFACTURING THEREFOR

#30
20250369066
2025-12-04

HIGH-PLASTICITY STEEL AND MANUFACTURING METHOD THEREFOR

#31
20250369063
2025-12-04

HIGH STRENGTH STEEL PLATE FOR SOUR-RESISTANT LINE PIPE AND METHOD FOR PRODUCING SAME, AND HIGH STRENGTH STEEL PIPE OR TUBE USING HIGH STRENGTH STEEL PLATE FOR SOUR-RESISTANT LINE PIPE

#32
20250361592
2025-11-27

PRODUCTION METHOD FOR STEEL SHEET

#33
20250361573
2025-11-27

QUENCHING METHOD

#34
20250354244
2025-11-20

800MPA-GRADE HIGH-HOLE-EXPANSION HOT-DIP GALVANIZED STEEL PLATE AND MANUFACTURING METHOD THEREFOR

#35
20250354239
2025-11-20

METHOD FOR FABRICATING STEEL SHEET FOR PRESS HARDENING, AND PARTS OBTAINED BY THIS METHOD

#36
20250354233
2025-11-20

DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

#37
20250354228
2025-11-20

Steel sheet and high strength press hardened steel part and method of manufacturing the same

#38
20250354227
2025-11-20

METHOD OF HEAT TREATMENT OF MEDIUM- AND HIGH-CARBON ALLOY STEEL AND USE THEREOF

#39
20250346982
2025-11-13

ROLL FORMED STEEL COMPONENT

#40
20250346972
2025-11-13

HIGH-TOUGHNESS STEEL AND METHOD FOR MANUFACTURING THE SAME

#41
20250346971
2025-11-13

HIGH-VANADIUM HIGH-SPEED STEEL AND PREPARATION METHOD THEREFOR, AND USE THEREOF

#42
20250340963
2025-11-06

NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

#43
20250340962
2025-11-06

NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

#44
20250333829
2025-10-30

HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND ELECTRIC RESISTANCE SPOT WELDABILITY, AND MANUFACTURING METHOD THEREFOR

#45
20250327158
2025-10-23

MARTENSITIC STAINLESS STEEL MATERIAL

#46
20250327146
2025-10-23

HIGH STRENGTH COLD-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#47
20250320902
2025-10-16

COIL SPRING AND MANUFACTURING METHOD OF THE SAME

#48
20250320592
2025-10-16

STAINLESS STEEL SEAMLESS PIPE AND PRODUCTION METHOD THEREFOR

#49
20250320591
2025-10-16

ULTRA-HIGH STRENGTH COLD-ROLLED STEEL SHEET WITH CORROSION RESISTANCE AND MANUFACTURING METHOD THEREFOR

#50
20250320576
2025-10-16

ULTRA-HIGH TENSILE COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#51
20250320573
2025-10-16

WEAR RESISTANT STEEL WITH HIGH HARDNESS AND GOOD TOUGHNESS WHICH KEEPS HARDENED AFTER HARD FACING AND TUNGSTEN CARBIDE TILE BRAZING

#52
20250313911
2025-10-09

Steel sheet and high strength press hardened steel part having excellent bending and method of manufacturing the same

#53
20250305076
2025-10-02

Method For Conditioning The Surfaces Of Heat-Treated Galvanised Steel Sheets

#54
20250290172
2025-09-18

HOT ROLLED STEEL SHEET, PART FOR VEHICLE, AND METHOD FOR MANUFACTURING SAME

#55
20250277284
2025-09-04

A MARTENSITIC STEEL AND A METHOD OF MARTENSITIC STEEL THEREOF

#56
20250277282
2025-09-04

Method for Producing Conventionally Hot-Rolled Profiled Strip Products

#57
20250270666
2025-08-28

HIGH-PLASTICITY 1500-MPA-GRADE ULTRAHIGH-STRENGTH STEEL AND PREPARATION METHOD THEREFOR

#58
20250257421
2025-08-14

DIFFERENTIAL HEAT TREATMENT METHOD FOR FORMING ROLLER

#59
20250253450
2025-08-07

ENCLOSURE FOR BATTERY CELL INCLUDING QUENCH HARDENED STEEL

#60
20250250661
2025-08-07

GEAR

#61
20250250660
2025-08-07

HOT-ROLLED STEEL SHEET AND METHOD OF PRODUCING SAME, AND ELECTRIC RESISTANCE WELDED STEEL PIPE OR TUBE AND METHOD OF PRODUCING SAME

#62
20250250652
2025-08-07

STEEL PLATE AND METHOD FOR PRODUCING THE SAME

#63
20250243573
2025-07-31

High toughness press-hardened steel part and method of manufacturing the same

#64
20250230517
2025-07-17

QUENCHING METHOD AND QUENCHING DEVICE

#65
20250230516
2025-07-17

Method and Device for Producing Hardened Sheet-Steel Components

#66
20250215546
2025-07-03

MARTENSITIC STAINLESS STEEL MATERIAL

#67
20250215544
2025-07-03

STEEL MATERIAL

#68
20250214660
2025-07-03

SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME

#69
20250207232
2025-06-26

STEEL PLATE AND METHOD OF PRODUCING SAME

#70
20250207215
2025-06-26

HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING THE SAME

#71
20250207212
2025-06-26

Solid State Quenching of Metal

#72
20250197984
2025-06-19

METHOD FOR PRODUCING HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET

#73
20250197981
2025-06-19

HOT ROLLED STEEL SHEET HAVING EXCELLENT COLD BENDABILITY AFTER HEATING AND QUENCHING-TEMPERING HEAT TREATMENT, STEEL PIPE, MEMBER AND MANUFACTURING METHODS THEREFOR

#74
20250197980
2025-06-19

STEEL PLATE AND METHOD OF PRODUCING SAME

#75
20250197979
2025-06-19

HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#76
20250197959
2025-06-19

HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#77
20250197958
2025-06-19

METHOD FOR PRODUCING TUBULAR COATING-FREE PRESS-HARDENED STEEL

#78
20250196951
2025-06-19

SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME

#79
20250179602
2025-06-05

STEEL SHEET, MEMBER, AND METHODS OF PRODUCING SAME

#80
20250171871
2025-05-29

High Strength, Cold Rolled Steel With Reduced Sensitivity to Hydrogen Embrittlement and Method for the Manufacture Thereof

#81
20250171869
2025-05-29

STEEL SHEET, MEMBER, METHODS FOR MANUFACTURING THE SAME, METHOD FOR MANUFACTURING HOT-ROLLED STEEL SHEET FOR COLD-ROLLED STEEL SHEET, AND METHOD FOR MANUFACTURING COLD-ROLLED STEEL SHEET

#82
20250163531
2025-05-22

STEEL SHEET, MEMBER, METHODS FOR MANUFACTURING THE SAME, METHOD FOR MANUFACTURING HOT-ROLLED STEEL SHEET FOR COLD-ROLLED STEEL SHEET, AND METHOD FOR MANUFACTURING COLD-ROLLED STEEL SHEET

#83
20250154634
2025-05-15

STAINLESS STEEL FORMULATION FOR PUMP COMPONENTS

#84
20250154620
2025-05-15

STEEL PLATE FOR PRESSURE VESSEL WITH EXCELLENT CRYOGENIC TOUGHNESS AND EXCELLENT DUCTILITY AND MANUFACTURING METHOD THEREOF

#85
20250154617
2025-05-15

STEEL PLATE FOR ADVANCED NUCLEAR POWER UNIT REACTOR CORE SHELL CYLINDER AND MANUFACTURING METHOD FOR STEEL PLATE

#86
20250153235
2025-05-15

APPARATUS AND METHOD FOR PREPARING HOT STAMPED PART

#87
20250149215
2025-05-08

PARAMAGNETIC HARD STAINLESS STEEL AND METHOD FOR MANUFACTURING SAME

#88
20250137525
2025-05-01

TORQUE TRANSFER MEMBER HAVING A STRENGTHENED FLUID PORT AND METHOD OF MAKING THE SAME

#89
20250137087
2025-05-01

ULTRA-HIGH-STRENGTH STAINLESS STEEL AND MANUFACTURING METHOD

#90
20250137083
2025-05-01

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

#91
20250137082
2025-05-01

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

#92
20250122591
2025-04-17

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#93
20250122588
2025-04-17

METHOD OF MANUFACTURING SPHERICAL METAL ARTICLES

#94
20250109467
2025-04-03

HOT-ROLLED STEEL SHEET

#95
20250108425
2025-04-03

SYSTEMS AND METHODS FOR IMPROVING BACKWARD FLOW FORMING OF SHAFTS

#96
20250108422
2025-04-03

STEEL SHEET FOR HOT PRESS FORMING, METHOD OF PRODUCING STEEL SHEET FOR HOT PRESS FORMING, HOT PRESSED MEMBER, AND METHOD OF PRODUCING HOT PRESSED MEMBER

#97
20250101554
2025-03-27

ELECTRIC RESISTANCE WELDED STEEL PIPE FOR AN AUTOMOTIVE PART, AND METHOD OF PRODUCING AUTOMOTIVE PART

#98
20250101540
2025-03-27

TIN PLATE AND MANUFACTURING METHOD THEREFOR

#99
20250092483
2025-03-20

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#100
20250092482
2025-03-20

ULTRA-HIGH STRENGTH COLD-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#101
20250092481
2025-03-20

HIGH-STRENGTH STEEL AND METHOD OF MANUFACTURING THE SAME

#102
20250091651
2025-03-20

PILLAR HAVING VARIABLE STRENGTH

#103
20250084518
2025-03-13

HOT STAMPED BODY

#104
20250084500
2025-03-13

LOW-CARBON, LOW-ALLOY AND HIGH-FORMABILITY DUAL-PHASE STEEL HAVING TENSILE STRENGTH OF GREATER THAN OR EQUAL TO 590 MPA, HOT-DIP GALVANIZED DUAL-PHASE STEEL, AND MANUFACTURING METHOD THEREFOR

#105
20250075301
2025-03-06

SURFACE-TREATED TOOL STEEL FOR DIE CASTING OF METAL

#106
20250075286
2025-03-06

ULTRA-HIGH STRENGTH GALVANIZED STEEL SHEET WITH EXCELLENT WELDABILITY AND MANUFACTURING METHOD THEREFOR

#107
20250075282
2025-03-06

PRESS HARDENING STEEL (PHS) WELDED BLANKS WITH ENHANCED TOUGHNESS

#108
20250073894
2025-03-06

MATERIAL PROCESSING SYSTEM AND METHOD FOR UTILIZING THE SAME

#109
20250059617
2025-02-20

HEAVY PLATE AND THERMOMECHANICAL TREATMENT METHOD FOR A STARTING MATERIAL FOR THE PRODUCTION OF THE HEAVY PLATE

#110
20250059614
2025-02-20

METHOD FOR PRODUCING STEEL MEMBER

#111
20250051870
2025-02-13

ULTRAHIGH-STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY AND MANUFACTURING METHOD THEREFOR

#112
20250043380
2025-02-06

COLD-ROLLED STEEL SHEET AND METHOD OF MANUFACTURING COLD-ROLLED STEEL SHEET

#113
20250043378
2025-02-06

HIGH-STRENGTH STEEL WITH EXCELLENT NEUTRAL AQUEOUS MEDIUM CORROSION RESISTANCE AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF

#114
20250043377
2025-02-06

CARBIDE-FREE TEMPERED MARTENSITIC STEELS AND PREPARATION METHODS THEREOF

#115
20250043376
2025-02-06

METHODS FOR MANUFACTURING WIRE ROD FOR COLD FORGING AND SCREW PART, HAVING EXCELLENT DRILLING CHARACTERISTICS

#116
20250043375
2025-02-06

NI-FREE MICRO-ALLOYED HIGH-STRENGTH STEEL WITH ULTRA-LOW TEMPERATURE TOUGHNESS, AND PREPARATION METHOD THEREOF

#117
20250043374
2025-02-06

SEAWATER CORROSION-RESISTANT MARINE ENGINEERING STEEL AND PREPARATION METHOD THEREOF

#118
20250034673
2025-01-30

APPARATUS FOR MANUFACTURING STEEL STRIP, CONTINUOUS ANNEALING FACILITY, AND MANUFACTURING METHOD

#119
20250019812
2025-01-16

HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#120
20250019786
2025-01-16

COLD ROLLED AND HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF

#121
20250019785
2025-01-16

HIGH-ALUMINUM BORON-CONTAINING DIE STEEL WITH RESISTANCE TO ZINC-INDUCED HOT CORROSION FOR SEVERE PLASTIC DEFORMATION OF ZINC ALLOYS AT ELEVATED TEMPERATURE AND PREPARATION METHOD THEREOF

#122
20250019783
2025-01-16

PROCESS AND SYSTEM FOR AUSTEMPERING METAL WORKPIECES

#123
20250011892
2025-01-09

Method for producing a steel sheet having excellent processability before hot forming

#124
20250011891
2025-01-09

HIGH-STRENGTH STEEL WITH GOOD WEATHER RESISTANCE AND MANUFACTURING METHOD THEREFOR

#125
20250003042
2025-01-02

HIGH-STRENGTH SEAMLESS STAINLESS STEEL PIPE FOR OIL WELLS

#126
20250003040
2025-01-02

HOT-ROLLED STEEL FOR ENAMELING HAVING ENAMELING AND FIRING STRENGTHENING PROPERTY, AND MANUFACTURING METHOD THEREFOR

#127
20250003038
2025-01-02

COLD FORGING WIRE ROD AND STEEL PART HAVING IMPROVED DELAYED FRACTURE RESISTANCE, AND METHOD FOR MANUFACTURING SAME

#128
20250003022
2025-01-02

COLD ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#129
20250003021
2025-01-02

STEEL SHEET, MEMBER, METHOD OF PRODUCING STEEL SHEET, AND METHOD OF PRODUCING MEMBER

#130
20240425946
2024-12-26

Sheet Metal Component and Method for Producing Same

#131
20240425943
2024-12-26

STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THEM

#132
20240418213
2024-12-19

ROLLING COMPONENT AND ROLLING BEARING

#133
20240417835
2024-12-19

MARTENSITIC STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR PRODUCING MARTENSITIC STAINLESS STEEL SEAMLESS PIPE

#134
20240417831
2024-12-19

ALLOYED STEEL

#135
20240417820
2024-12-19

COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#136
20240417819
2024-12-19

TRACK LINK PRODUCTION METHOD

#137
20240410499
2024-12-12

HIGH-STRENGTH STAINLESS SEAMLESS STEEL PIPE FOR OIL WELLS AND METHOD FOR PRODUCING THE SAME

#138
20240410041
2024-12-12

Alloy for Mud Motor Shaft Applications with High Strength, High Impact Toughness and Excellent Fatigue Life

#139
20240410039
2024-12-12

MECHANICAL COMPONENT AND ROLLING BEARING

#140
20240410030
2024-12-12

ULTRATHICK STEEL MATERIALS FOR FLANGE HAVING EXCELLENT STRENGTH AND LOW TEMPERATURE IMPACT TOUGHNESS, AND MANUFACTURING METHOD THEREFOR

#141
20240401178
2024-12-05

MARTENSITIC STAINLESS STEEL ROUND BAR

#142
20240401162
2024-12-05

High strength press hardened steel part and method of manufacturing the same

#143
20240392407
2024-11-28

HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND LOW MECHANICAL PROPERTY DEVIATION AND MANUFACTURING METHOD OF SAME

#144
20240392405
2024-11-28

COLD ROLLED AND HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF

#145
20240392404
2024-11-28

ULTRA-HIGH STRENGTH SPRING STEEL AND PREPARATION METHOD THEREOF

#146
20240392401
2024-11-28

STEEL MATERIAL FOR SLIDING PART AND METHOD OF MANUFACTURING STEEL MATERIAL FOR SLIDING PART

#147
20240384381
2024-11-21

HOT-ROLLED STEEL SHEET

#148
20240384366
2024-11-21

HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND LOW MATERIAL VARIATION, AND METHOD FOR MANUFACTURING SAME

#149
20240383025
2024-11-21

FORGED STEEL ROLL FOR COLD ROLLING

#150
20240376562
2024-11-14

HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#151
20240368723
2024-11-07

HOT ROLLED AND STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF

#152
20240368722
2024-11-07

STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING SAME

#153
20240360538
2024-10-31

STEEL FOR HIGH-TEMPERATURE CARBURIZED GEAR SHAFT AND MANUFACTURING METHOD FOR STEEL

#154
20240360533
2024-10-31

STEEL HAVING EXCELLENT HYDROGEN-INDUCED CRACKING RESISTANCE AND LOW-TEMPERATURE IMPACT TOUGHNESS, AND METHOD FOR MANUFACTURING SAME

#155
20240360530
2024-10-31

QUENCHING APPARATUS, QUENCHING METHOD, AND METHOD OF MANUFACTURING METAL SHEET

#156
20240352552
2024-10-24

STEEL SHEET AND METHOD OF PRODUCING SAME

#157
20240352551
2024-10-24

COLD ROLLED STEEL SHEET HAVING EXCELLENT WELDABILITY, STRENGTH, AND FORMABILITY, AND METHOD FOR MANUFACTURING SAME

#158
20240344186
2024-10-17

STEEL WIRE FOR SPRINGS

#159
20240344185
2024-10-17

STEEL AND STEEL WIRE, WHICH ARE FOR SPRING, AND MANUFACTURING METHODS THEREFOR

#160
20240344159
2024-10-17

PROCESS FOR MANUFACTURING VEHICLE PARTS

#161
20240344158
2024-10-17

QUENCHING APPARATUS FOR METAL SHEET, CONTINUOUS ANNEALING EQUIPMENT, METHOD FOR QUENCHING METAL SHEET, METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET, AND METHOD FOR MANUFACTURING COATED STEEL SHEET

#162
20240342869
2024-10-17

TOOL ACCESSORY AND METHOD OF MANUFACTURING SAME

#163
20240335914
2024-10-10

MECHANICAL STRUCTURAL MEMBER AND METHOD FOR MANUFACTURING SAME

#164
20240327944
2024-10-03

PROCESS FOR DIRECT PRODUCTION OF A TRIP STEEL STRIP IN AN INTEGRATED CASTING-ROLLING PLANT AND A TRIP STEEL STRIP PRODUCED BY THE PROCESS

#165
20240327943
2024-10-03

MECHANICAL STRUCTURAL MEMBER AND PRODUCTION METHOD FOR SAME

#166
20240326399
2024-10-03

LOW-DENSITY CLAD STEEL SHEET HAVING EXCELLENT FORMABILITY AND FATIGUE PROPERTY AND MANUFACTURING METHOD THEREFOR

#167
20240321489
2024-09-26

R-FE-B SINTERED MAGNET, PREPARATION METHOD AND USE THEREOF

#168
20240318289
2024-09-26

HEAT-RESISTANT FERRITIC STEEL

#169
20240318273
2024-09-26

HIGH-TOUGHNESS ULTRAHIGH-STRENGTH STEEL AND MANUFACTURING METHOD THEREOF

#170
20240318272
2024-09-26

QUENCHING APPARATUS, METHOD FOR QUENCHING, METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET, AND METHOD FOR MANUFACTURING COATED STEEL SHEET

#171
20240309483
2024-09-19

HIGH STRENGTH GALVANIZED AND GALVANNEALED STEEL SHEETS AND MANUFACTURING METHOD

#172
20240309482
2024-09-19

COLD-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREOF

#173
20240309481
2024-09-19

HOT-ROLLED STEEL PLATE FOR LOW-COST HIGH TEMPERATURE ENAMELING, AND MANUFACTURING METHOD THEEFOR

#174
20240301537
2024-09-12

HOT-ROLLED STEEL SHEET

#175
20240301528
2024-09-12

Method for producing a steel part and steel part

#176
20240301524
2024-09-12

QUENCHING APPARATUS AND QUENCHING METHOD FOR METAL SHEET, AND METHOD FOR MANUFACTURING STEEL SHEET

#177
20240301523
2024-09-12

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HIGH STRENGTH STEEL SHEET

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#180
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HIGH STRENGTH STEEL SHEET, HIGH STRENGTH COATED OR PLATED STEEL SHEET, METHODS OF PRODUCING SAME, AND MEMBER

#181
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#182
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COMPONENT WITH INTEGRATED ALUMINUM DIFFUSION LAYER AND ALUMINUM OXIDE LAYER

#184
20240271244
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System and method for producing rod-shaped steels

#185
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HIGH-STRENGTH GALVANIZED STEEL SHEET AND MEMBER, AND METHOD FOR MANUFACTURING SAME

#186
20240271240
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MARTENSITIC STAINLESS STEEL WITH IMPROVED STRENGTH AND CORROSION RESISTANCE, AND MANUFACTURING METHOD THEREFOR

#187
20240271239
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PROCESS FOR OBTAINING A FINE-GRAINED MARTENSITIC STRUCTURE COMPONENT

#188
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2024-08-15

TUBULAR STABILIZER BAR FOR A VEHICLE CHASSIS, AND VEHICLE CHASSIS COMPRISING THE TUBULAR STABILIZER BAR

#189
20240263266
2024-08-08

METHOD FOR INCREASING THE ULTIMATE TENSILE STRESS (UTS) AND YIELD STRENGTH (YS) OF HIGH-STRENGTH MARTENSITIC STEELS

#190
20240258001
2024-08-01

NANOCRYSTALLINE SOFT MAGNETIC ALLOY WITH HIGH MAGNETIC INDUCTION AND HIGH FREQUENCY AND PREPARATION METHOD THEREOF

#191
20240254609
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AUSTENITIC STAINLESS STEEL AND TUBE

#192
20240254585
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HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY, AND MANUFACTURING METHOD THEREFOR

#193
20240254581
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HETEROSTRUCTURED ANTIMICROBIAL STAINLESS STEEL AND METHOD FOR SYNTHESIZING THE SAME

#194
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SPHEROIDIZING-ANNEALED STEEL FOR BALL SCREW HAVING HIGH STRENGTH AND RESISTANCE TO LOW TEMPERATURES AND MANUFACTURING METHOD THEREOF

#195
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2024-07-25

HIGH-STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING HIGH-STRENGTH HOT-ROLLED STEEL SHEET

#196
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METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#197
20240229204
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HOT-STAMP FORMED BODY

#198
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2024-07-11

MARTENSITIC STAINLESS STEEL PLATE FOR BRAKE DISK ROTOR, BRAKE DISK ROTOR, AND METHOD FOR MANUFACTURING MARTENSITIC STAINLESS STEEL PLATE FOR BRAKE DISK ROTOR

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COILING TEMPERATURE INFLUENCED COLD ROLLED STRIP OR STEEL

#200
20240229181
2024-07-11

STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THE SAME

#201
20240229180
2024-07-11

STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THE SAME

#202
20240229179
2024-07-11

Method For Producing Hardened Steel Sheet Components

#203
20240218476
2024-07-04

Steel sheet and high strength press hardened steel part and method of manufacturing the same

#204
20240213863
2024-06-27

HEAT TREATMENT FURNACE AND HEAT TREATMENT METHOD

#205
20240209470
2024-06-27

HOT-ROLLED STEEL SHEET

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20240209469
2024-06-27

STEEL FOR BOLTS, AND MANUFACTURING METHOD THEREFOR

#207
20240209468
2024-06-27

MARTENSITIC STAINLESS STEEL MATERIAL FOR HYDROGEN GAS ENVIRONMENT AND MANUFACTURING METHOD THEREFOR

#208
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2024-06-20

HEAT-RESISTANT STEEL FOR STEEL PIPES AND CASTINGS

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2024-06-20

BUSHINGLESS TRACK PIN FOR A TRACK TYPE VEHICLE

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Soft Magnetic Iron Alloy Plate, Method for Manufacturing Soft Magnetic Iron Alloy Plate, and Iron Core and Rotating Electric Machine Employing Soft Magnetic Iron Alloy Plate

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STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME

#212
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2024-06-13

STEEL STRIP MADE OF A HIGH-STRENGTH MULTIPHASE STEEL AND PROCESS FOR PRODUCING SUCH A STEEL STRIP

#213
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2024-06-06

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#214
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ULTRAHIGH-STRENGTH STEEL SHEET WITH EXCELLENT BENDABILITY AND STRETCH FLANGEABILITY, AND MANUFACTURING METHOD THEREFOR

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STEEL SHEET, MEMBER, AND METHOD FOR PRODUCING STEEL SHEET, AND METHOD FOR PRODUCING MEMBER

#216
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STEEL WIRE FOR MACHINE STRUCTURAL PARTS AND METHOD FOR MANUFACTURING THE SAME

#217
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HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#218
20240158883
2024-05-16

STEEL SHEET, MEMBER, AND METHOD FOR PRODUCING STEEL SHEET, AND METHOD FOR PRODUCING MEMBER

#219
20240158880
2024-05-16

MICRO-MOLYBDENUM-TYPE WEATHERING BRIDGE STEEL PLATE AND PREPARATION METHOD THEREOF

#220
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HIGH-SPEED STEEL SINTERED BODY AND METHOD OF MANUFACTURING HIGH-SPEED STEEL SINTERED BODY

#221
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2024-05-09

COLD-WORKABLE MECHANICAL STRUCTURAL STEEL, AND METHOD FOR MANUFACTURING SAME

#222
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STEEL SHEET AND WELDED JOINT

#223
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#224
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2024-05-02

ULTRA HIGH STRENGTH STEEL SHEET HAVING HIGH YIELD RATIO AND EXCELLENT BENDABILITY AND METHOD OF MANUFACTURING SAME

#225
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METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

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HOT-STAMP FORMED BODY

#227
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2024-04-25

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#228
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2024-04-25

IRON ALLOYS

#229
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2024-04-25

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#230
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STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THE SAME

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HOT-STAMPING FORMED BODY

#233
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#234
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#235
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CONTINUOUS ANNEALER FOR WIRE

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OIL RING WIRE

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STEEL SHEET

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Valve spring

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#245
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STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THE SAME

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MODERATE-STRENGTH STEEL RAIL AND PRODUCTION METHOD THEREOF

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METHOD FOR PRODUCING A ROLLING BEARING COMPONENT

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WIRE ROD FOR ULTRAHIGH-STRENGTH SPRINGS, STEEL WIRE, AND MANUFACTURING METHOD THEREFOR

#250
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WIRE ROD AND PART, HAVING IMPROVED DELAYED FRACTURE RESISTANCE, FOR USE IN BOLT AND METHOD FOR MANUFACTURING SAME

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WIRE ROD AND STEEL WIRE FOR SPRING, SPRING WITH IMPROVED FATIGUE RESISTANCE AND NITRIDING PROPERTIES, AND METHODS FOR MANUFACTURING SAME

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STEEL SHEET FOR PIPE HAVING EXCELLENT HYDROGEN-INDUCED CRACK RESISTANCE AND METHOD FOR MANUFACTURING SAME

#253
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High strength steel sheet, impact absorbing member, and method for manufacturing high strength steel sheet

#254
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Methods for preparing high performance press-hardened steel components

#255
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PLATED STEEL SHEET FOR HOT PRESS FORMING, AND METHOD OF MANUFACTURING THE SAME

#256
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FORMING METHOD, HEAT TREATMENT SYSTEM, AND FORMED PRODUCT

#257
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HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND ELECTRIC RESISTANCE SPOT WELDABILITY, AND MANUFACTURING METHOD THEREFOR

#258
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NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#259
20240035515
2024-02-01

BEARING PART AND ROLLING BEARING

#260
20240035107
2024-02-01

Highly thick steel material having excellent low-temperature impact toughness and manufacturing method therefor

#261
20240035106
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HIGH STRENGTH THIN STEEL MATERIAL FOR API HAVING EXCELLENT RESISTANCE TO DEFORMATION AND METHOD OF MANUFACTURING SAME

#262
20240026999
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ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME

#263
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OIL RING WIRE

#264
20240026509
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HIGH MOLYBDENUM DUPLEX STAINLESS STEEL

#265
20240026490
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RAPID COOLING OF HIGH YIELD STRENGTH SHEET STEEL

#266
20240026489
2024-01-25

NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING SAME

#267
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HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET WITH HIGH DUCTILITY AND EXCELLENT FORMABILITY, AND MANUFACTURING METHOD FOR SAME

#268
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STEEL SHEET AND PRODUCTION METHOD THEREFOR

#269
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2024-01-18

HIGH TOUGHNESS HIGH CARBON COLD ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY, AND METHOD FOR MANUFACTURING SAME

#270
20240011135
2024-01-11

HOT WORK TOOL STEEL

#271
20240011120
2024-01-11

HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND SPOT WELDABILITY, AND MANUFACTURING METHOD THEREFOR

#272
20240011118
2024-01-11

HIGH STRENGTH STEEL SHEET HAVING EXCELLENT WORKABILITY AND METHOD FOR MANUFACTURING SAME

#273
20240011116
2024-01-11

Bake-hardened hot-dip galvanized steel sheet with excellent powdering resistance, and manufacturing method therefor

#274
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2024-01-04

STEEL PLATE FOR PRESSURE VESSEL WITH EXCELLENT CRYOGENIC TOUGHNESS, AND METHOD OF MANUFACTURING SAME

#275
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2024-01-04

ULTRA-HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT BENDABILITY, AND METHOD OF MANUFACTURING SAME

#276
20240002965
2024-01-04

Steel Material and Method for Its Manufacture

#277
20230416886
2023-12-28

HOT-ROLLED STEEL SHEET

#278
20230416861
2023-12-28

HOT ROLLED STEEL HAVING LOW COMPRESSIVE STRENGTH LOSS AFTER BEING PROCESSED INTO STEEL PIPE, AND MANUFACTURING METHOD THEREFOR

#279
20230416859
2023-12-28

STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

#280
20230407430
2023-12-21

STEEL SHEET AND MANUFACTURING METHOD THEREOF

#281
20230407428
2023-12-21

Steel

#282
20230407425
2023-12-21

TREATMENT METHOD AND PROCESS FOR VALVE SEAT

#283
20230399712
2023-12-14

Steel sheet and method for producing same

#284
20230392244
2023-12-07

Steel wire

#285
20230392240
2023-12-07

High carbon martensitic stainless steel

#286
20230392229
2023-12-07

HIGH-STRENGTH STEEL STRIP HAVING EXCELLENT WORKABILITY, AND METHOD FOR MANUFACTURING SAME

#287
20230392222
2023-12-07

METHOD FOR MANUFACTURING STAINLESS STEEL SINTERED MESH

#288
20230392221
2023-12-07

A NEW WEAR RESISTANT STEEL WITH HIGH HARDNESS AND GOOD TOUGHNESS WHICH KEEPS HARDENED AFTER HARD FACING AND TUNGSTEN CARBIDE TILE BRAZING

#289
20230383790
2023-11-30

ROLLING MEMBER AND ROLLING BEARING

#290
20230383788
2023-11-30

BEARING ASSEMBLY

#291
20230374622
2023-11-23

HIGH-STRENGTH COLD-ROLLED STEEL SHEET, HIGH-STRENGTH COATED OR PLATED STEEL SHEET, METHOD OF PRODUCING HIGH-STRENGTH COLD-ROLLED STEEL SHEET, AND METHOD OF PRODUCING HIGH-STRENGTH COATED OR PLATED STEEL SHEET

#292
20230366057
2023-11-16

Sheet metal component and method for producing same

#293
20230366055
2023-11-16

METHOD FOR PREPARING BAINITE HOT-WORKING DIE

#294
20230357908
2023-11-09

HOT-ROLLED STEEL SHEET

#295
20230357882
2023-11-09

GPA-GRADE BAINITE STEEL HAVING ULTRA-HIGH YIELD RATIO AND MANUFACTURING METHOD FOR GPA-GRADE BAINITE STEEL

#296
20230357881
2023-11-09

ULTRA HIGH STRENGTH STEEL SHEET HAVING EXCELLENT DUCTILITY AND METHOD FOR MANUFACTURING THEREOF

#297
20230356378
2023-11-09

TOOL WITH PROTRUDING STRUCTURE

#298
20230349021
2023-11-02

HIGH-STRENGTH THICK HOT-ROLLED STEEL SHEET HAVING EXCELLENT ELONGATION AND METHOD FOR MANUFACTURING SAME

#299
20230349020
2023-11-02

Steel sheet, member, and methods for manufacturing the same

#300
20230347183
2023-11-02

PROBE FOR ULTRASONIC TREATMENT TOOL, METHOD FOR PRODUCING SAME, AND ULTRASONIC TREATMENT TOOL