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Kazunori Yasumitsu
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Kitakyushu-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Plasma torch used for heating molten steel
Patent number
6,794,600
Issue date
Sep 21, 2004
Nippon Steel Corporation
Shinichi Fukunaga
B22 - CASTING POWDER METALLURGY
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last 30 patents
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Patent Application
Plasma torch used for heating molten steel
Publication number
20040074880
Publication date
Apr 22, 2004
Shinichi Fukunaga
B22 - CASTING POWDER METALLURGY