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Motoharu Nakajima
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Nishinomiya, JP
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last 30 patents
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Patent Grant
Dispersion strengthened ferritic steel for high temperature structu...
Patent number
4,963,200
Issue date
Oct 16, 1990
Doryokuro Kakunenryo Kaihatsu Jigyodan
Takanari Okuda
B22 - CASTING POWDER METALLURGY