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Osaka-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Welded component comprising seamless bent pipe and seamless straigh...
Patent number
9,364,881
Issue date
Jun 14, 2016
Nippon Steel & Sumitomo Metal Corporation
Tsutomu Arita
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing a welded component comprising a seamless be...
Patent number
8,549,751
Issue date
Oct 8, 2013
Nippon Steel & Sumitomo Metal Corporation
Tsutomu Arita
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Mechanical pipe-end expander and a method of manufacturing seamless...
Patent number
7,765,850
Issue date
Aug 3, 2010
Sumitomo Metal Industries, Ltd.
Tsutomu Arita
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
Welded Component Comprising Seamless Bent Pipe and Seamless Straigh...
Publication number
20140007641
Publication date
Jan 9, 2014
NIPPON STEEL & SUMITOMO METAL CORPORATION
Tsutomu Arita
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Cold Working Lubricant and Cold Working Method for Steel Pipe
Publication number
20100132427
Publication date
Jun 3, 2010
Sumitomo Metal Industries, Ltd.
MASAYOSHI AKIYAMA
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Welded Component Comprising Seamless Bent Pipe and Seamless Straigh...
Publication number
20100000286
Publication date
Jan 7, 2010
Sumitomo Metal Industries, Ltd.
Tsutomu Arita
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
COLD WORKING LUBRICANT AND COLD WORKING METHOD FOR STEEL PIPE
Publication number
20090090439
Publication date
Apr 9, 2009
Sumitomo Metal Industries, Ltd.
MASAYOSHI AKIYAMA
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Mechanical pipe-end expander and a method of manufacturing seamless...
Publication number
20090038366
Publication date
Feb 12, 2009
Tsutomu Arita
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Excellent-strength and excellent-toughness steel and the method of...
Publication number
20060219335
Publication date
Oct 5, 2006
Tsutomu Arita
C21 - METALLURGY OF IRON