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Hirotaka Nakagawa
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Tokyo, JP
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last 30 patents
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Patent Grant
Powder manufacturing apparatus and method therefor
Patent number
4,886,547
Issue date
Dec 12, 1989
Nippon Kokan Kabushiki Kaisha
Hideaki Mizukami
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for manufacturing alloy
Patent number
4,764,209
Issue date
Aug 16, 1988
Nippon Kokan Kabushiki Kaisha
Kentaro Mori
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Fused flux for inclined submerged arc welding
Patent number
4,450,018
Issue date
May 22, 1984
Nippon Kokan Kabushiki Kaisha
Katsuyuki Suga
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR