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Toshiharu Abe
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Osaka-shi, JP
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Patents Grants
last 30 patents
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
Information
Patent Grant
Oil country tubular good for expansion in well and manufacturing me...
Patent number
7,799,149
Issue date
Sep 21, 2010
Sumitomo Metal Industries, Ltd.
Taro Ohe
C21 - METALLURGY OF IRON
Information
Patent Grant
High toughness steel material and method of producing steel pipes u...
Patent number
6,958,099
Issue date
Oct 25, 2005
Sumitomo Metal Industries, Ltd.
Shigeru Nakamura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing high chromium system seamless steel pipe
Patent number
6,692,592
Issue date
Feb 17, 2004
Sumitomo Metal Industries, Ltd.
Shigeru Kidani
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
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
Information
Patent Application
Low alloy steel for oil country tubular goods and seamless steel pipe
Publication number
20090098403
Publication date
Apr 16, 2009
Tomohiko Omura
C21 - METALLURGY OF IRON
Information
Patent Application
Low alloy steel, seamless steel oil country tubular goods, and meth...
Publication number
20090047166
Publication date
Feb 19, 2009
Kuniaki Tomomatsu
C21 - METALLURGY OF IRON
Information
Patent Application
Oil country tubular good for expansion in well and manufacturing me...
Publication number
20090032150
Publication date
Feb 5, 2009
Taro Ohe
C21 - METALLURGY OF IRON
Information
Patent Application
Seamless steel tubes and pipes for use in oil well
Publication number
20060231168
Publication date
Oct 19, 2006
Keiichi Nakamura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
High toughness steel material and method of producing steel pipes u...
Publication number
20030178111
Publication date
Sep 25, 2003
Shigeru Nakamura
C21 - METALLURGY OF IRON
Information
Patent Application
Method for manufacturing high chromium system seamless steel pipe
Publication number
20030127162
Publication date
Jul 10, 2003
Shigeru Kidani
C21 - METALLURGY OF IRON