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Chitoshi Matsumura
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Kawasaki, JP
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Patents Grants
last 30 patents
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Patent Grant
Removal method of nitrogen in molten steel
Patent number
7,901,482
Issue date
Mar 8, 2011
JFE Steel Corporation
Chikashi Tada
C21 - METALLURGY OF IRON
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Patent Grant
Chromium-containing metal and method for producing the same
Patent number
7,004,992
Issue date
Feb 28, 2006
JFE Steel Corporation
Hiroiti Sugimori
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
Removal Method of Nitrogen in Molten Steel
Publication number
20090019968
Publication date
Jan 22, 2009
JFE STEEL CORPORATION
Chikashi Tada
C21 - METALLURGY OF IRON
Information
Patent Application
Chromium-containing metal and manufacturing method thereof
Publication number
20060037673
Publication date
Feb 23, 2006
JFE STEEL CORPORATION
Hiroiti Sugimori
C21 - METALLURGY OF IRON
Information
Patent Application
Chromium-containing metal and method for producing the same
Publication number
20030110886
Publication date
Jun 19, 2003
Hiroiti Sugimori
C21 - METALLURGY OF IRON