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Kohichi Isobe
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Muroran-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Method of production of steel superior in machinability
Patent number
8,137,484
Issue date
Mar 20, 2012
Nippon Steel Corporation
Masayuki Hashimura
C21 - METALLURGY OF IRON
Information
Patent Grant
Superior in machinability and method of production of same
Patent number
7,488,396
Issue date
Feb 10, 2009
Nippon Steel Corporation
Masayuki Hashimura
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel excellent in forgeability and machinability
Patent number
6,858,101
Issue date
Feb 22, 2005
Nippon Steel Corporation
Masayuki Hashimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
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Patent Application
Steel superior in machinability and method of production of same
Publication number
20090050241
Publication date
Feb 26, 2009
NIPPON STEEL CORPORATION
Masayuki Hashimura
C21 - METALLURGY OF IRON
Information
Patent Application
Steel having finely dispersed inclusions
Publication number
20060157162
Publication date
Jul 20, 2006
NIPPON STEEL CORPORATION
Hiroshi Hirata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Steel superior in machinability and method of production of same
Publication number
20060013720
Publication date
Jan 19, 2006
Masayuki Hashimura
C21 - METALLURGY OF IRON