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Keiichi KONDO
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Seamless steel pipe heat-treatment-finishing-treatment continuous f...
Patent number
11,898,216
Issue date
Feb 13, 2024
Nippon Steel Corporation
Hiroki Kamitani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Steel material suitable for use in sour environment
Patent number
11,434,554
Issue date
Sep 6, 2022
Nippon Steel Corporation
Hiroki Kamitani
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Low-alloy steel for oil well pipe and method of manufacturing low-a...
Patent number
11,060,160
Issue date
Jul 13, 2021
Nippon Steel Corporation
Keiichi Kondo
C21 - METALLURGY OF IRON
Information
Patent Grant
Low alloy oil-well steel pipe
Patent number
10,752,979
Issue date
Aug 25, 2020
Nippon Steel Corporation
Keiichi Kondo
C21 - METALLURGY OF IRON
Information
Patent Grant
Low alloy oil-well steel pipe
Patent number
10,563,793
Issue date
Feb 18, 2020
Nippon Steel Corporation
Keiichi Kondo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Steel pipe for line pipe and method of manufacturing the same
Patent number
10,487,373
Issue date
Nov 26, 2019
Nippon Steel Corporation
Taro Oe
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Thick-wall oil-well steel pipe and production method thereof
Patent number
10,415,125
Issue date
Sep 17, 2019
Nippon Steel Corporation
Yuji Arai
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel for oil country tubular goods and method of producing the same
Patent number
10,407,758
Issue date
Sep 10, 2019
Nippon Steel Corporation
Tomohiko Omura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing high-strength steel material excellent in sulf...
Patent number
10,287,645
Issue date
May 14, 2019
Nippon Steel & Sumitomo Metal Corporation
Keiichi Kondo
C21 - METALLURGY OF IRON
Information
Patent Grant
Seamless steel pipe for line pipe used in sour environments
Patent number
10,094,008
Issue date
Oct 9, 2018
Nippon Steel & Sumitomo Metal Corporation
Keiichi Kondo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Low alloy oil well steel pipe and method for manufacturing same
Patent number
10,036,078
Issue date
Jul 31, 2018
Nippon Steel & Sumitomo Metal Corporation
Yuji Arai
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for producing a low alloy steel for oil country tubular good...
Patent number
9,909,198
Issue date
Mar 6, 2018
Nippon Steel & Sumitomo Metal Corporation
Tomohiko Omura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing seamless pipes
Patent number
8,696,834
Issue date
Apr 15, 2014
Nippon Steel & Sumitomo Metal Corporation
Keiichi Kondo
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
STEEL MATERIAL
Publication number
20230203631
Publication date
Jun 29, 2023
NIPPON STEEL CORPORATION
Keiichi KONDO
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
Publication number
20210198775
Publication date
Jul 1, 2021
NIPPON STEEL CORPORATION
Hiroki KAMITANI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SEAMLESS STEEL PIPE HEAT-TREATMENT-FINISHING-TREATMENT CONTINUOUS F...
Publication number
20210025021
Publication date
Jan 28, 2021
NIPPON STEEL CORPORATION
Hiroki KAMITANI
C21 - METALLURGY OF IRON
Information
Patent Application
SEAMLESS STEEL PIPE AND METHOD OF MANUFACTURING THE SAME
Publication number
20180355451
Publication date
Dec 13, 2018
NIPPON STEEL & SUMITOMO METAL CORPORATION
Keiichi KONDO
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PIPE FOR LINE PIPE AND METHOD FOR MANUFACTURING THE SAME
Publication number
20180187278
Publication date
Jul 5, 2018
NIPPON STEEL & SUMITOMO METAL CORPORATION
Taro OE
C21 - METALLURGY OF IRON
Information
Patent Application
LOW ALLOY STEEL FOR OIL COUNTRY TUBULAR GOODS HAVING EXCELLENT SULF...
Publication number
20180135154
Publication date
May 17, 2018
NIPPON STEEL & SUMITOMO METAL CORPORATION
Tomohiko OMURA
C21 - METALLURGY OF IRON
Information
Patent Application
LOW-ALLOY STEEL FOR OIL WELL PIPE AND METHOD OF MANUFACTURING LOW-A...
Publication number
20170362674
Publication date
Dec 21, 2017
Keiichi KONDO
C21 - METALLURGY OF IRON
Information
Patent Application
LOW ALLOY OIL-WELL STEEL PIPE
Publication number
20170306461
Publication date
Oct 26, 2017
Keiichi KONDO
C21 - METALLURGY OF IRON
Information
Patent Application
THICK-WALL OIL-WELL STEEL PIPE AND PRODUCTION METHOD THEREOF
Publication number
20170292177
Publication date
Oct 12, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Yuji ARAI
C21 - METALLURGY OF IRON
Information
Patent Application
LOW ALLOY OIL-WELL STEEL PIPE
Publication number
20170219131
Publication date
Aug 3, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Keiichi KONDO
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SEAMLESS STEEL PIPE FOR LINE PIPE USED IN SOUR ENVIRONMENTS
Publication number
20160369381
Publication date
Dec 22, 2016
NIPPON STEEL & SUMITOMO METAL CORPORATION
Keiichi KONDO
C21 - METALLURGY OF IRON
Information
Patent Application
LOW ALLOY OIL WELL STEEL PIPE AND METHOD FOR MANUFACTURING SAME
Publication number
20160160307
Publication date
Jun 9, 2016
NIPPON STEEL & SUMITOMO METAL CORPORATION
Yuji ARAI
C21 - METALLURGY OF IRON
Information
Patent Application
LOW ALLOY STEEL FOR OIL COUNTRY TUBULAR GOODS HAVING EXCELLENT SULF...
Publication number
20150247226
Publication date
Sep 3, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Tomohiko Omura
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL FOR OIL COUNTRY TUBULAR GOODS AND METHOD OF PRODUCING THE SAME
Publication number
20150114527
Publication date
Apr 30, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Tomohiko Omura
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING HIGH-STRENGTH STEEL MATERIAL EXCELLENT IN SULF...
Publication number
20150041030
Publication date
Feb 12, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Keiichi Kondo
C21 - METALLURGY OF IRON
Information
Patent Application
RESIN COMPOSITION FOR LIGHT SCATTERING LAYER, LIGHT SCATTERING LAYE...
Publication number
20130331474
Publication date
Dec 12, 2013
Kana Kida
G02 - OPTICS
Information
Patent Application
METHOD FOR MANUFACTURING SEAMLESS PIPES
Publication number
20120042992
Publication date
Feb 23, 2012
Sumitomo Metal Industries, Ltd.
Keiichi KONDO
C21 - METALLURGY OF IRON