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C21D9/36
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C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
C21D9/00
Heat treatment
Current Industry
C21D9/36
for balls for rollers
Industries
Overview
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Patents Grants
last 30 patents
Information
Patent Grant
Heat treatment equipment and heat treatment method
Patent number
11,286,535
Issue date
Mar 29, 2022
NTN Corporation
Tsuneaki Hiraoka
C21 - METALLURGY OF IRON
Information
Patent Grant
Heat treatment method of rod-shape workpiece
Patent number
10,844,447
Issue date
Nov 24, 2020
NTN Corporation
Tsuneaki Hiraoka
C21 - METALLURGY OF IRON
Information
Patent Grant
Work piece conveyance jig and conveyance device provided with same,...
Patent number
10,577,187
Issue date
Mar 3, 2020
NTN Corporation
Yuuki Tabuchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of imparting compressive residual stress to balls
Patent number
10,480,578
Issue date
Nov 19, 2019
Aktiebolaget SKF
Bryan McCoy
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Steel alloy and a component comprising such a steel alloy
Patent number
10,450,644
Issue date
Oct 22, 2019
ERASTEEL
Johanna André
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Bearing part
Patent number
10,246,757
Issue date
Apr 2, 2019
Nippon Steel & Sumitomo Metal Corporation
Masashi Sakamoto
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method and steel component
Patent number
10,202,678
Issue date
Feb 12, 2019
Aktiébolaget SKF
Thore Lund
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing steel
Patent number
10,113,221
Issue date
Oct 30, 2018
Aktiebolaget SKF
Hanzheng Huang
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for heat treatment of parts made from low and specified har...
Patent number
10,100,391
Issue date
Oct 16, 2018
Anatoly Alexeevich Kuznetsov
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and steel component
Patent number
10,053,764
Issue date
Aug 21, 2018
Aktiebolaget SKF
Staffan Larsson
C21 - METALLURGY OF IRON
Information
Patent Grant
Gas nitrocarburizing method and method for manufacturing bearing part
Patent number
10,047,429
Issue date
Aug 14, 2018
NTN Corporation
Chikara Ohki
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing part, rolling bearing, and method for manufacturing bearing...
Patent number
9,951,816
Issue date
Apr 24, 2018
NTN Corporation
Daisuke Sato
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and steel component
Patent number
9,828,664
Issue date
Nov 28, 2017
Aktiebolaget SKF
Staffan Larsson
C21 - METALLURGY OF IRON
Information
Patent Grant
Tapered roller bearing
Patent number
9,816,557
Issue date
Nov 14, 2017
NTN Corporation
Takashi Ueno
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of forming a bearing component
Patent number
9,810,264
Issue date
Nov 7, 2017
The Timken Company
Praveen Pauskar
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Manufacturing process for aerospace bearing rolling elements
Patent number
9,732,394
Issue date
Aug 15, 2017
United Technologies Corporation
Herbert A. Chin
B24 - GRINDING POLISHING
Information
Patent Grant
Bearing steel and method for producing same
Patent number
9,732,407
Issue date
Aug 15, 2017
Nippon Steel & Sumitomo Metal Corporation
Masayuki Hashimura
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing steel material with excellent rolling fatigue property and...
Patent number
9,359,661
Issue date
Jun 7, 2016
Kobe Steel, Ltd.
Masaki Shimamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing part, rolling bearing, and methods of manufacturing them
Patent number
9,206,490
Issue date
Dec 8, 2015
NTN Corporation
Takashi Ueno
C21 - METALLURGY OF IRON
Information
Patent Grant
Rolled wire rod and manufacturing method thereof
Patent number
9,169,530
Issue date
Oct 27, 2015
Nippon Steel & Sumitomo Metal Corporation
Masashi Sakamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Carbonitriding method, machinery component fabrication method, and...
Patent number
9,062,355
Issue date
Jun 23, 2015
NTN Corporation
Chikara Ohki
C21 - METALLURGY OF IRON
Information
Patent Grant
Case hardening steel, carburized component, and manufacturing metho...
Patent number
8,980,022
Issue date
Mar 17, 2015
Nippon Steel & Sumitomo Metal Corporation
Kei Miyanishi
C21 - METALLURGY OF IRON
Information
Patent Grant
Mechanical component and rolling bearing
Patent number
8,453,528
Issue date
Jun 4, 2013
NTN Corporation
Chikara Ohki
C21 - METALLURGY OF IRON
Information
Patent Grant
Swash plate type piston pump motor and method for manufacturing the...
Patent number
8,425,699
Issue date
Apr 23, 2013
Kawasaki Jukogyo Kabushiki Kaisha
Takashi Mori
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing part, heat treatment method thereof, and rolling bearing
Patent number
8,425,690
Issue date
Apr 23, 2013
NTN CORPORATION
Chikara Ohki
C21 - METALLURGY OF IRON
Information
Patent Grant
Mechanical component and rolling bearing
Patent number
8,337,089
Issue date
Dec 25, 2012
NTN Corporation
Chikara Ohki
C21 - METALLURGY OF IRON
Information
Patent Grant
Ball for constant velocity joint and method for producing the same
Patent number
8,317,943
Issue date
Nov 27, 2012
Honda Motor Co., Ltd.
Takafumi Murakami
C21 - METALLURGY OF IRON
Information
Patent Grant
Centrifugally cast external layer for rolling roll and method for m...
Patent number
8,156,651
Issue date
Apr 17, 2012
Hitachi Metals, Ltd.
Kiyoshi Furushima
C21 - METALLURGY OF IRON
Information
Patent Grant
Rolling bearing
Patent number
8,083,868
Issue date
Dec 27, 2011
NSK Ltd.
Shinji Fujita
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing's component, heat treatment method thereof, heat treatment...
Patent number
8,002,907
Issue date
Aug 23, 2011
NTN Corporation
Chikara Ohki
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
FORGED GRINDING BALLS FOR SEMI-AUTOGENOUS GRINDER
Publication number
20230071728
Publication date
Mar 9, 2023
Magotteaux International SA
Marc BABINEAU
C21 - METALLURGY OF IRON
Information
Patent Application
ROLLING BEARING
Publication number
20220411891
Publication date
Dec 29, 2022
NTN Corporation
Takashi KAWAI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHOD OF HEAT TREATING A STEEL COMPONENT
Publication number
20220389559
Publication date
Dec 8, 2022
Aktiebolaget SKF
Karl Åke Staffan Larsson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH SURFACE COMPRESSIVE STRESS FOR THROUGH HARDENING
Publication number
20220010395
Publication date
Jan 13, 2022
The Timken Company
Mohan Chand Paladugu
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING PART AND ROLLING BEARING
Publication number
20200378442
Publication date
Dec 3, 2020
NTN CORPORATION
Masahiro Yamada
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
SHOT BALL HAVING EXCELLENT STRENGTH AND WEAR RESISTANCE AND METHOD...
Publication number
20200087763
Publication date
Mar 19, 2020
POSCO
Sang-Chul LEE
C21 - METALLURGY OF IRON
Information
Patent Application
WORK PIECE CONVEYANCE JIG AND CONVEYANCE DEVICE PROVIDED WITH SAME,...
Publication number
20190270595
Publication date
Sep 5, 2019
NTN Corporation
Yuuki TABUCHI
C21 - METALLURGY OF IRON
Information
Patent Application
HEAT TREATMENT METHOD OF ROD-SHAPE WORKPIECE
Publication number
20190241986
Publication date
Aug 8, 2019
NTN Corporation
Tsuneaki HIRAOKA
C21 - METALLURGY OF IRON
Information
Patent Application
HEAT TREATMENT EQUIPMENT AND HEAT TREATMENT METHOD
Publication number
20190233911
Publication date
Aug 1, 2019
NTN Corporation
Tsuneaki HIRAOKA
C21 - METALLURGY OF IRON
Information
Patent Application
INDUCTION HEATING APPARATUS AND INDUCTION HEATING METHOD
Publication number
20190239291
Publication date
Aug 1, 2019
NTN Corporation
Shintaro SUZUKI
C21 - METALLURGY OF IRON
Information
Patent Application
COLD TREATMENT FOR IMPROVING THE LOAD-BEARING CAPACITY OF METALLIC...
Publication number
20170321292
Publication date
Nov 9, 2017
ZF Friedrichshafen AG
Dirk LEIMANN
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD & METAL COMPONENT
Publication number
20170081738
Publication date
Mar 23, 2017
Aktiebolaget SKF
Anna Isabella Flodstrom
C21 - METALLURGY OF IRON
Information
Patent Application
GRINDING MEDIA FABRICATION
Publication number
20170008004
Publication date
Jan 12, 2017
Donhad Pty Ltd
Paul William Shelley
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
BEARING PART
Publication number
20160333438
Publication date
Nov 17, 2016
NIPPON STEEL & SUMITOMO METAL CORPORATION
Masashi SAKAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING PART, STEEL FOR BEARING PART AND METHOD FOR PRODUCING THEREOF
Publication number
20160333437
Publication date
Nov 17, 2016
NIPPON STEEL & SUMITOMO METAL CORPORATION
Masashi SAKAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
A STEEL ALLOY AND A COMPONENT COMPRISING SUCH A STEEL ALLOY
Publication number
20160298225
Publication date
Oct 13, 2016
Erasteel
Johanna Olofsson
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING STEEL
Publication number
20160251744
Publication date
Sep 1, 2016
Aktiebolaget SKF
Hanzheng HUANG
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING PART, ROLLING BEARING, AND METHOD OF MANUFACTURING BEARING...
Publication number
20160178009
Publication date
Jun 23, 2016
NTN Corporation
Daisuke SATO
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING STEEL HAVING IMPROVED FATIGUE DURABILITY AND METHOD OF MANU...
Publication number
20160145702
Publication date
May 26, 2016
Hyundai Motor Company
Sung-Chul Cha
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD & STEEL COMPONENT
Publication number
20150240341
Publication date
Aug 27, 2015
Staffan Larsson
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING MACHINE COMPONENT
Publication number
20150240342
Publication date
Aug 27, 2015
NTN Corporation
Takumi Fujita
C21 - METALLURGY OF IRON
Information
Patent Application
Process For Heat Treatment of Parts Made From Low and Specified Har...
Publication number
20150232969
Publication date
Aug 20, 2015
Anatoly Alexeevich Kuznetsov
C21 - METALLURGY OF IRON
Information
Patent Application
ROLLED WIRE ROD AND MANUFACTURING METHOD THEREOF
Publication number
20150167112
Publication date
Jun 18, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Masashi Sakamoto
C21 - METALLURGY OF IRON
Information
Patent Application
ROLLING BEARING AND ITS MANUFACTURING METHOD
Publication number
20140363115
Publication date
Dec 11, 2014
NSK Ltd.
Hiroki Yamada
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING PART, ROLLING BEARING, AND METHODS OF MANUFACTURING THEM
Publication number
20140348454
Publication date
Nov 27, 2014
NTN CORPORATION
Takashi Ueno
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING STEEL AND METHOD FOR PRODUCING SAME
Publication number
20140261906
Publication date
Sep 18, 2014
Masayuki Hashimura
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND STEEL COMPONENT
Publication number
20140209214
Publication date
Jul 31, 2014
Thore Lund
C21 - METALLURGY OF IRON
Information
Patent Application
Thermo-mechanical Process for Martensitic Bearing Steels
Publication number
20140182747
Publication date
Jul 3, 2014
Aktiebolaget SKF
Bryan A. McCoy
C21 - METALLURGY OF IRON
Information
Patent Application
BEARING COMPONENT AND METHOD FOR SURFACE HARDENING
Publication number
20140144558
Publication date
May 29, 2014
Marco Burtchen
C21 - METALLURGY OF IRON
Information
Patent Application
ROLLING SLIDING MEMBER, METHOD OF MANUFACTURING THE SAME, AND ROLLI...
Publication number
20140099051
Publication date
Apr 10, 2014
JTEKT Corporation
Wataru YOSHIDA
C21 - METALLURGY OF IRON