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Ultrafine nickel powder
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Patent number 6,596,052
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Issue date Jul 22, 2003
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Kamatetsu Mining Co., Ltd.
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Hideshi Katayama
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Ultrafine nickel powder
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Patent number 6,402,803
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Issue date Jun 11, 2002
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Kawatetsu Mining Co., Ltd.
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Hideshi Katayama
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B22 - CASTING POWDER METALLURGY
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Nickel ultrafine powder
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Patent number 6,312,496
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Issue date Nov 6, 2001
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Kawatetsu Mining Co., Ltd.
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Hideshi Katayama
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B22 - CASTING POWDER METALLURGY