ClassID:

119100

C21D9/50 - page 2 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Recent Application in this class:
#301
20120024433
2012-02-02

MULTI-ALLOY ASSEMBLY HAVING CORROSION RESISTANCE AND METHOD OF MAKING THE SAME

#302
20120024430
2012-02-02

High-strength stainless steel pipe

#303
20120021246
2012-01-26

Weld metal and welded structure having weld joints using the same

#304
20120018028
2012-01-26

High strength steel pipe for low-temperature usage having excellent buckling resistance and toughness of welded heat affected zone and method for producing the same

#305
20120003035
2012-01-05

Fillet weld joint and method for gas shielded arc welding

#306
20110311812
2011-12-22

METHOD AND APPARATUS FOR WELDING WIRES

#307
20110308198
2011-12-22

Reinforcing

#308
20110291431
2011-12-01

CRASH BOX, AND METHOD OF MAKING A CRASH BOX

#309
20110284503
2011-11-24

System and method for heat treating a weld joint

#310
20110269555
2011-11-03

Outer member of constant speed universal joint

#311
20110268601
2011-11-03

Steel for welded structure and producing method thereof

#312
20110248071
2011-10-13

Austenitic welding material, and preventive maintenance method for stress corrosion cracking and preventive maintenance method for intergranular corrosion, using same

#313
20110247733
2011-10-13

Seamless steel pipe and method for manufacturing the same

#314
20110232808
2011-09-29

Method for producing a motor vehicle component, and a body component

#315
20110206525
2011-08-25

Turbine rotor and manufacturing method of turbine rotor

#316
20110206505
2011-08-25

Welded structural flats on cases to eliminate nozzles

#317
20110204123
2011-08-25

Method for the removal of surface oxides by electron attachment

#318
20110198820
2011-08-18

Stabilizer and a method for producing a stabilizer

#319
20110162760
2011-07-07

Method of producing cold-rolled steel sheet

#320
20110158572
2011-06-30

Method for manufacturing a steel component, a weld seam, a welded steel component, and a bearing component

#321
20110155289
2011-06-30

RESIDUAL STRESS IMPROVING METHOD FOR PIPE

#322
20110126945
2011-06-02

Ni-based alloy high-chrome steel structure and manufacturing method of the same

#323
20110123820
2011-05-26

Impact treatment method for improving fatigue characteristics of welded joint, impact treatment device for improving fatigue characteristics for same, and welded structure superior in fatigue resistance characteristics

#324
20110107571
2011-05-12

Peening Device for Peening Welds Inside Steel Submarine Pipes, Process for Producing Steel Submarine Pipes Using Such a Device, and Submarine Connection Pipe

#325
20110041965
2011-02-24

High strength thick-gauge steel plate superior in weldability and having tensile strength of 780 MPA or more and method of production of same

#326
20110036469
2011-02-17

Steel plate that exhibits excellent low-temperature toughness in a base material and weld heat-affected zone and has small strength anisotropy, and manufacturing method thereof

#327
20110008648
2011-01-13

High-strength steel sheet, strength member for vehicles using the same, and method for producing strength member for vehicles

#328
20110002808
2011-01-06

FIRE-RESISTANT STEEL MATERIAL SUPERIOR IN WELD HEAT AFFECTED ZONE REHEAT EMBRITTLEMENT RESISTANCE AND LOW TEMPERATURE TOUGHNESS AND METHOD OF PRODUCTION OF SAME

#329
20100330388
2010-12-30

Welded steel pipe for high strength line pipe superior in low temperature toughness and method of production of the same

#330
20100330387
2010-12-30

High strength thick steel material and high strength giant H-shape excellent in toughness and weldability and methods of production of same

#331
20100326974
2010-12-30

Method for improving residual stress in tubular body

#332
20100307643
2010-12-09

METHOD FOR REDUCING STRESS IN A CONDUIT BRACE ASSEMBLY

#333
20100288738
2010-11-18

WELDING APPARATUS AND METHOD

#334
20100288400
2010-11-18

Method for assembling aluminum alloy parts by welding

#335
20100263767
2010-10-21

Method of producing hot-rolled steel sheet

#336
20100246148
2010-09-30

Electronic apparatus produced using lead-free bonding material for soldering

#337
20100243715
2010-09-30

Welding railway lines

#338
20100209283
2010-08-19

Cold-rolled steel sheet

#339
20100178165
2010-07-15

Welding repair method for full hoop structures

#340
20100176185
2010-07-15

Welding repair method for full hoop structures

#341
20100147047
2010-06-17

Method of Making an Udersea Pipe, the Method Including Peening Assembly Welds Inside the Pipe

#342
20100140230
2010-06-10

METHOD FOR THE MANUFACTURE OF A WELDED ROTOR FOR A GAS-TURBINE ENGINE

#343
20100132855
2010-06-03

Fire-resistant steel superior in weld joint reheat embrittlement resistance and toughness and method of production of same

#344
20100129680
2010-05-27

UOE STEEL PIPE AND A METHOD FOR ITS MANUFACTURE

#345
20100122972
2010-05-20

Apparatus for improving residual stress in tubular body and adjustment method of the same

#346
20100117400
2010-05-13

Composite made of two steel plates

#347
20100108653
2010-05-06

Method for improving residual stress in tubular body and apparatus for improving residual stress in tubular body

#348
20100108202
2010-05-06

Method of manufacturing high tensile strength thick steel plate

#349
20100072193
2010-03-25

METHOD AND APPARATUS FOR THE HEAT TREATMENT OF WELDS

#350
20100059572
2010-03-11

WELD REPAIR PROCESS AND ARTICLE REPAIRED THEREBY

#351
20100059491
2010-03-11

APPARATUS FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY

#352
20100047609
2010-02-25

ELECTRIC RESISTANCE WELDED STEEL TUBE FOR HEAT TREATMENT AND METHOD FOR MANUFACTURING THE SAME

#353
20100032413
2010-02-11

Method and device for the crack-free welding, repair welding, or surface welding of materials prone to forming hot cracks

#354
20100031506
2010-02-11

Method for producing steam generator tube walls consisting primarily of 9-12% martensitic chromium steels

#355
20100012230
2010-01-21

APPARATUS AND METHOD FOR THE HEAT TREATMENT OF INTEGRAL ROTORS OF GAS TURBINES

#356
20100008815
2010-01-14

Steel superior in CTOD properties of weld heat-affected zone and method of production of same

#357
20100006545
2010-01-14

Welding of Pipeline to Enhance Strain Performance

#358
20100003535
2010-01-07

High strength thick welded steel pipe for line pipe superior in low temperature toughness and method of production of the same

#359
20100003161
2010-01-07

Crude oil tank comprising a corrosion resistant steel alloy

#360
20090320965
2009-12-31

UOE steel pipe excellent in collapse strength and method of production thereof

#361
20090320964
2009-12-31

Heat resistance copper alloy materials

#362
20090314758
2009-12-24

Methods of treating metal articles and articles made therefrom

#363
20090314394
2009-12-24

Method for manufacturing an austenitic steel object

#364
20090302012
2009-12-10

METHOD AND SYSTEM FOR IMPROVING RESIDUAL STRESS IN TUBE BODY

#365
20090297872
2009-12-03

High-tensile steel plate, welded steel pipe or tube, and methods of manufacturing thereof

#366
20090277542
2009-11-12

Steel material for automobile chassis parts superior in fatigue characteristics and method of production of automobile chassis parts using the same

#367
20090255981
2009-10-15

Method for repairing cracks in components and solder material for soldering components

#368
20090250146
2009-10-08

High Strength Thick-Gauge Electric-Resistance Welded Steel Pipe Excellent in Hardenability, Hot Workability and Fatigue Strength and Method of Production of the Same

#369
20090246067
2009-10-01

High-strength steel sheet excellent in resistance to stress-relief annealing and in low-temperature joint toughness

#370
20090229714
2009-09-17

METHOD OF MITIGATING STRESS CORROSION CRACKING IN AUSTENITIC SOLID SOLUTION STRENGTHENED STAINLESS STEELS

#371
20090229713
2009-09-17

Wall mountable holder

#372
20090220815
2009-09-03

Plate

#373
20090199612
2009-08-13

Hot bend pipe and a process for its manufacture

#374
20090183804
2009-07-23

Localized induction heating for residual stress optimization

#375
20090139607
2009-06-04

BRAZE COMPOSITIONS AND METHODS OF USE

#376
20090135985
2009-05-28

Maintenance and repair device for structure inside nuclear reactor

#377
20090120535
2009-05-14

METHOD OF BONDING STEEL MEMBERS, METHOD OF ENHANCING BONDING STRENGTH OF UNITED BODY FORMED OF STEEL MEMBERS, STEEL PRODUCT, AND DIE-CAST PRODUCT

#378
20090101242
2009-04-23

LOW CARBON ALLOY STEEL TUBE HAVING ULTRA HIGH STRENGTH AND EXCELLENT TOUGHNESS AT LOW TEMPERATURE AND METHOD OF MANUFACTURING THE SAME

#379
20090098009
2009-04-16

Low chromium stainless steel superior in corrosion resistance of multipass welded heat affected zones and its method of production

#380
20090094832
2009-04-16

Heat treating apparatus and method of using same

#381
20090084830
2009-04-02

Tool assembly heat treatment method

#382
20090065494
2009-03-12

Systems and methods for providing localized heat treatment of gas turbine components

#383
20090056839
2009-03-05

Method for Improving Residual Stress of Structure Member

#384
20090053097
2009-02-26

Fire-resistant steel material superior in HAZ toughness of welded joint and method of production of same

#385
20090044882
2009-02-19

Oil well pipe for expandable tubular applications excellent in post-expansion toughness and method of manufacturing the same

#386
20090032310
2009-02-05

Methods for reparing particle-matrix composite bodies

#387
20090020523
2009-01-22

Systems and methods for providing localized heat treatment of metal components

#388
20090020191
2009-01-22

Post weld heat treatment for chemically stabilized austenitic stainless steel

#389
20080302450
2008-12-11

Object Comprising a Steel Part of Metal Construction Consisting of an Area Welded by a High Power Density Beam and Exhibiting an Excellent Toughness in a Molten Area, Method for Producing Said Object

#390
20080292443
2008-11-27

Boom and arm member of construction machine excellent in weld zone fatigue strength and method of improvement of its fatigue strength

#391
20080283160
2008-11-20

Method of manufacturing a bent pipe

#392
20080277398
2008-11-13

SEAM-WELDED 36% NI-FE ALLOY STRUCTURES AND METHODS OF MAKING AND USING SAME

#393
20080272097
2008-11-06

Methodology of improving the manufacturability of laser anneal

#394
20080257008
2008-10-23

High strength welded steel tube superior in hydrogen embrittlement cracking resistance of weld metal and method of production of same

#395
20080217380
2008-09-11

Method and apparatus to relieve residual stress or distortion in a heat processed article

#396
20080210741
2008-09-04

WELD REPAIR AS A COMBINED HEAT TREATMENT BRAZING PROCESS FOR METALLIC COMPONENTS

#397
20080202639
2008-08-28

Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof

#398
20080179377
2008-07-31

RESTOTRATION METHOD FOR DETERIORATED PART AND RESTORATION APPARATUS FOR DETERIORATED PART

#399
20080128053
2008-06-05

METHOD OF MANUFACTURING A WELDED METAL PANEL HAVING A HIGH QUALITY SURFACE FINISH

#400
20080115863
2008-05-22

Method for improving the performance of seam-welded joints using post-weld heat treatment

#401
20080110229
2008-05-15

Mechanical stress improvement process

#402
20080105341
2008-05-08

HEAT TREATMENT OF INLAID PRESSURE VESSELS

#403
20080105340
2008-05-08

Heat Treatment Method of Inlaid Pressure Vessels

#404
20080078754
2008-04-03

Method of welding aluminum alloy steels

#405
20080078554
2008-04-03

Imputing strength gradient in pressure vessels

#406
20080040924
2008-02-21

Method for the repair of a compressor rotor designed in blisk technology

#407
20080029927
2008-02-07

Method and apparatus for heat-treating an article and a fixture for use in the same

#408
20080028605
2008-02-07

Weld repair of metallic components

#409
20070272769
2007-11-29

Method for manufacturing a body

#410
20070269678
2007-11-22

High-tensile steel sheet, steel sheet joining process and high-strength automotive part

#411
20070269335
2007-11-22

Low alloy steel and weld joint thereof excellent in corrosion resistance to hydrochloric acid and sulfuric acid

#412
20070209738
2007-09-13

High strength and high toughness alloy with low density and the method of making

#413
20070199977
2007-08-30

Turbocharger turbine and shaft assembly

#414
20070175873
2007-08-02

Apparatus for improving residual stress of piping technical field

#415
20070170226
2007-07-26

Ferritic stainless steel welded pipe superior in expandability

#416
20070111119
2007-05-17

Method for repairing gas turbine engine compressor components

#417
20070080451
2007-04-12

Intermetallic solder with low melting point

#418
20070057372
2007-03-15

External contact material for external contacts of a semiconductor device and method of making the same

#419
20070050976
2007-03-08

Method of repairing a crack in a turbine component

#420
20070042310
2007-02-22

Method and apparatus for the treatment of a component

#421
20070039670
2007-02-22

Welding repair method for full hoop structures

#422
20060260721
2006-11-23

Heat resistance copper alloy materials

#423
20060237104
2006-10-26

Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces

#424
20060231535
2006-10-19

Method of welding a gamma-prime precipitate strengthened material

#425
20060201587
2006-09-14

Welded structure having improved resistance to stress corrosion cracking

#426
20060197638
2006-09-07

Induction heating stress improvement

#427
20060169374
2006-08-03

Process for the production of an articulated structural part having improved wear resistance

#428
20060169368
2006-08-03

Low carbon alloy steel tube having ultra high strength and excellent toughness at low temperature and method of manufacturing the same

#429
20060154101
2006-07-13

Deformed wire for reinforcing marine optical fiber cable

#430
20060137777
2006-06-29

Method of improvement of toughness of heat affected zone at welded joint of steel plate

#431
20060124696
2006-06-15

Method for managing a continuous in-line metal strip processing installation, and installation for implementing this method

#432
20060113010
2006-06-01

Heat treatment method and device for piping

#433
20060054666
2006-03-16

Welded structural member and method and use thereof

#434
20060016858
2006-01-26

Method of improving quality and reliability of welded rail joint properties by ultrasonic impact treatment

#435
20050263220
2005-12-01

Methods for repairing gas turbine engine components

#436
20050230012
2005-10-20

Crude oil tank fabricated from steel plate

#437
20050224562
2005-10-13

Apparatus and method for forming a weld joint having improved physical properties

#438
20050217901
2005-10-06

Drill rod and method of manufacture thereof

#439
20050194363
2005-09-08

Multi-laser beam welding high strength superalloys

#440
20050178456
2005-08-18

UOE steel pipe excellent in collapse strength and method of production thereof

#441
20050145306
2005-07-07

Welded joints with new properties and provision of such properties by ultrasonic impact treatment

#442
20050133482
2005-06-23

Method and apparatus for heat-treating an article and a fixture for use in the same

#443
20050092397
2005-05-05

Ultrasonic impact methods for treatment of welded structures

#444
20050051527
2005-03-10

Surface oxide weld penetration enhancement method and article

#445
20050013722
2005-01-20

Low alloy steel and weld joint thereof excellent in corrosion resistance to hydrochloric acid and sulfuric acid