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Masahiko Hamada
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Kobe-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
High-tensile steel plate, welded steel pipe or tube, and methods of...
Patent number
8,177,925
Issue date
May 15, 2012
Sumitomo Metal Industries, Ltd.
Nobuaki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of manufacturing a bent pipe
Patent number
7,780,800
Issue date
Aug 24, 2010
Sumitomo Metal Industries, Ltd.
Nobuaki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot bend pipe and a process for its manufacture
Patent number
7,770,428
Issue date
Aug 10, 2010
Sumitomo Metal Industries, Ltd.
Nobuaki Takahashi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High strength steel weld having improved resistance to cold crackin...
Patent number
6,953,508
Issue date
Oct 11, 2005
Sumitomo Metal Industries, Ltd.
Tomoaki Ikeda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Martensitic stainless steel welded pipe
Patent number
6,379,821
Issue date
Apr 30, 2002
Sumitomo Metal Industries, Ltd.
Takahiro Kushida
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-tensile-strength steel and method of manufacturing the same
Patent number
6,245,290
Issue date
Jun 12, 2001
Exxonmobil Upstream Research Company
Jayoung Koo
C21 - METALLURGY OF IRON
Information
Patent Grant
Welded high-strength steel structures and method of manufacturing t...
Patent number
6,188,037
Issue date
Feb 13, 2001
Sumitomo Metal Industries, Ltd.
Masahiko Hamada
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-toughness, high-tensile-strength steel and method of manufactu...
Patent number
6,183,573
Issue date
Feb 6, 2001
Sumitomo Metal Industries, Ltd.
Kazuki Fujiwara
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for joining metallic materials by diffusion bonding and join...
Patent number
6,059,175
Issue date
May 9, 2000
Sumitomo Metal Industries, Ltd.
Masahiko Hamada
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-toughness, high-tensile-strength steel and method of manufactu...
Patent number
6,045,630
Issue date
Apr 4, 2000
Sumitomo Metal Industries, Ltd.
Kazuki Fujiwara
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
HIGH-STRENGTH UOE STEEL PIPE EXCELLENT IN DEFORMABILITY AND LOW-TEM...
Publication number
20120216904
Publication date
Aug 30, 2012
Sumitomo Metal Industries, Ltd.
Nobuaki Takahashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
High-Strength UOE Steel Pipe Excellent in Deformability and Low-Tem...
Publication number
20110070457
Publication date
Mar 24, 2011
Sumitomo Metal Industries, Ltd.
Nobuaki Takahashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HIGH TENSILE STRENGTH STEEL AND MARINE STRUCTURE HAVING EXCELLENT W...
Publication number
20100226813
Publication date
Sep 9, 2010
Takahiro Kamo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
High-Tensile Steel Plate, Welded Steel Pipe or Tube, and Methods of...
Publication number
20090297872
Publication date
Dec 3, 2009
Sumitomo Metal Industries, Ltd.
Nobuaki Takahashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Hot bend pipe and a process for its manufacture
Publication number
20090199612
Publication date
Aug 13, 2009
Nobuaki Takahashi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Steel plate for submerged arc welding
Publication number
20090022619
Publication date
Jan 22, 2009
Masahiko Hamada
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Bent pipe and a method for its manufacture
Publication number
20080283160
Publication date
Nov 20, 2008
Nobuaki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Application
High-strength welded steel pipe
Publication number
20070289655
Publication date
Dec 20, 2007
Masahiko Hamada
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
High tensile strength steel and marine structure having excellent w...
Publication number
20070051433
Publication date
Mar 8, 2007
Takahiro Kamo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
High strength steel weld having improved resistance to cold crackin...
Publication number
20040129348
Publication date
Jul 8, 2004
Tomoaki Ikeda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Martensitic stainless steel welded pipe
Publication number
20010030004
Publication date
Oct 18, 2001
Takahiro Kushida
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...