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Hiroshi Okamoto
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Minoo, JP
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last 30 patents
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Patent Grant
Process for manufacturing clad pipe
Patent number
5,584,428
Issue date
Dec 17, 1996
Sumitomo Metal Industries, Ltd.
Atsushi Satoh
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Duplex stainless steel having improved strength and corrosion resis...
Patent number
5,298,093
Issue date
Mar 29, 1994
Sumitomo Metal Indusries, Ltd.
Hiroshi Okamoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...