ClassID:

119094

C21D9/38 - CPC Classification

Classification description:

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

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

METHOD FOR PRODUCING A ROLLING BEARING COMPONENT

#2
20250257421
2025-08-14

DIFFERENTIAL HEAT TREATMENT METHOD FOR FORMING ROLLER

#3
20240060531
2024-02-22

METHOD FOR PRODUCING A ROLLING BEARING COMPONENT

#4
20220268315
2022-08-25

Heat-treated roller bearing ring

#5
20220203417
2022-06-30

CENTRIFUGALLY CAST COMPOSITE ROLL FOR ROLLING AND METHOD OF MANUFACTURING THE SAME

#6
20220176431
2022-06-09

Centrifugally cast composite roll for rolling and method of manufacturing the same

#7
20220032351
2022-02-03

METHOD FOR THE MANUFACTURE OF MULTIMATERIAL ROLL AND THE MULTIMATERIAL ROLL

#8
20190292638
2019-09-26

Martensitic alloy component and process of forming a martensitic alloy component

#9
20190040486
2019-02-07

Case hardening method for high performance long life martensitic stainless steel bearings

#10
20180361445
2018-12-20

Roll for hot rolling process and method for manufacturing same

#11
20180335076
2018-11-22

Tripod constant velocity universal joint and method for manufacturing same

#12
20180257134
2018-09-13

Special-shaped roll formed by a composite casting method and preparation process therefore

#13
20180036983
2018-02-08

Briquetting roll and method for manufacturing the same

#14
20170321292
2017-11-09

COLD TREATMENT FOR IMPROVING THE LOAD-BEARING CAPACITY OF METALLIC COMPONENTS

#15
20170225209
2017-08-10

Outer layer material for composite roll for rolling and composite roll for rolling

#16
20170216950
2017-08-03

Machine component and method for producing the same

#17
20170089393
2017-03-30

Method of forming a bearing component

#18
20170081738
2017-03-23

METHOD & METAL COMPONENT

#19
20170016084
2017-01-19

Case hardening method for high performance long life martensitic stainless steel bearings

#20
20160333438
2016-11-17

Bearing part

#21
20160123396
2016-05-05

Bearing component and rolling bearing

#22
20150239026
2015-08-27

Outer-layer material for hot-rolling roll, and hot-rolling composite roll

#23
20150225835
2015-08-13

Method and steel component

#24
20150217392
2015-08-06

Method for installing a first machine part into a second machine part

#25
20150147223
2015-05-28

Bearing steel material with excellent rolling fatigue property and bearing part

#26
20150026957
2015-01-29

Method for manufacturing forged steel roll

#27
20140345353
2014-11-27

Centrifugally cast composite roll for hot rolling and its production method

#28
20140287898
2014-09-25

Roll surface layer material for hot rolling with excellent fatigue resistance produced by centrifugal casting, and composite roll for hot rolling produced through centrifugal casting

#29
20140041763
2014-02-13

Gas nitrocarburizing method and method for manufacturing bearing part

#30
20130156627
2013-06-20

Compositions comprising nickel-titanium, methods manufacture thereof and articles comprising the same

#31
20130078379
2013-03-28

WHITE ETCHING CRACKS ROBUSTNESS INCREASE OF A ROLLER BEARING

#32
20120282480
2012-11-08

HIGH-TEMPERATURE MATERIAL TRANSFERRING MEMBER

#33
20120177527
2012-07-12

BEARING STEELS

#34
20110318593
2011-12-29

Cast product having alumina barrier layer

#35
20110274946
2011-11-10

CAST BODY

#36
20110158572
2011-06-30

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

#37
20110155290
2011-06-30

Case hardening steel, carburized component, and manufacturing method of case hardening steel

#38
20110030219
2011-02-10

Method of producing rolling sliding member

#39
20100314006
2010-12-16

STEEL FOR INDUCTION HARDENING WITH EXCELLENT COLD WORKABILITY, ROLLING MEMBER MADE OF THE SAME, AND MOTION GUIDE DEVICE USING ROLLING MEMBER

#40
20100263771
2010-10-21

Steel wire rod for bearing steel, manufacturing method of steel wire rod for bearing steel, heat treatment method of steel bearing, steel bearing and soaking method of bearing steel

#41
20100179039
2010-07-15

Roller body for a roller for treating a material and method of manufacturing a roller body

#42
20100158420
2010-06-24

METHOD OF MANUFACTURING MOTION GUIDE DEVICE AND MOTION GUIDE DEVICE MANUFACTURED BY THE METHOD

#43
20100122754
2010-05-20

High-strength martensite heat resisting cast steel, method of producing the steel, and applications of the steel

#44
20100107865
2010-05-06

Swash plate type piston pump motor and method for manufacturing the same

#45
20090158797
2009-06-25

LASER SHOCK PROCESSED PILGER DIES

#46
20080268991
2008-10-30

Method for producing a conical pulley, a conical pulley, and a belt-driven conical-pulley transmission

#47
20080226936
2008-09-18

Centrifugally cast external layer for rolling roll and method for manufacture thereof

#48
20080210352
2008-09-04

Method for heat-treating steel material

#49
20060237104
2006-10-26

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