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Ryuji Watanabe
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Muroran, JP
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last 30 patents
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Patent Grant
Production process and apparatus for high purity silicon
Patent number
6,395,249
Issue date
May 28, 2002
Nippon Steel Corporation
Jiro Kondo
C01 - INORGANIC CHEMISTRY
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Patent Grant
Apparatus for making strips, bars and wire rods
Patent number
5,404,931
Issue date
Apr 11, 1995
Nippon Steel Corporation
Einao Anzai
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Method and apparatus for making strips, bars and wire rods
Patent number
5,293,927
Issue date
Mar 15, 1994
Nippon Steel Corporation
Einao Anzai
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...