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Tsuneo Yamada
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Nishinomiya, JP
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last 30 patents
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Patent Grant
Rolling method for parallel-flange steel shapes
Patent number
4,958,509
Issue date
Sep 25, 1990
Sumitomo Metal Industries, Ltd.
Yoshiaki Kusaba
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of feeding material to hot forging machine
Patent number
4,823,577
Issue date
Apr 25, 1989
Sumimoto Metal Industries, Ltd.
Yoshio Kawashima
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Apparatus of processing continuously cast slabs
Patent number
4,802,356
Issue date
Feb 7, 1989
Sumitomo Metal Industries, Ltd.
Tsuneo Yamada
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of feeding material to hot forging machine
Patent number
4,761,980
Issue date
Aug 9, 1988
Sumitomo Metal Industries, Ltd.
Yoshio Kawashima
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of processing continuously cast slabs
Patent number
4,709,572
Issue date
Dec 1, 1987
Sumitomo Metal Industries, Ltd.
Tsuneo Yamada
B22 - CASTING POWDER METALLURGY