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Masato Kumagai
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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for the treating stainless steel refining slag
Patent number
6,732,547
Issue date
May 11, 2004
JFE Steel Corporation
Hisahiro Matsunaga
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for processing chromium oxide-containing substances in large...
Patent number
6,521,040
Issue date
Feb 18, 2003
Kawasaki Steel Corporation
Hisahiro Matsunaga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for processing chromium oxide-containing substances in large...
Patent number
6,336,967
Issue date
Jan 8, 2002
Kawasaki Steel Corporation
Hisahiro Matsunaga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of solidifying steel-making slag and material produced by th...
Patent number
6,334,885
Issue date
Jan 1, 2002
Kawasaki Steel Corporation
Yasumasa Fukushima
C21 - METALLURGY OF IRON
Information
Patent Grant
Flame-spraying powdery repair mixture
Patent number
6,322,622
Issue date
Nov 27, 2001
Kawasaki Steel Corporation
Hisahiro Matsunaga
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Graphite-containing monolithic refractory material
Patent number
6,288,001
Issue date
Sep 11, 2001
Kawasaki Steel Corporation
Yoshisato Kiyota
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Porcelain-enameled steel sheets and frits for enameling
Patent number
5,993,974
Issue date
Nov 30, 1999
Kawasaki Steel Corporation
Yasumasa Fukushima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Methods of seeding sintered objects
Patent number
5,204,300
Issue date
Apr 20, 1993
Kawasaki Steel Corporation
Masato Kumagai
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for producing aluminum nitride powder
Patent number
4,780,299
Issue date
Oct 25, 1988
Kawasaki Steel Corporation
Masato Kumagai
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
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Patent Application
Method for processing chromium oxide-containing substances in large...
Publication number
20020050229
Publication date
May 2, 2002
Kawasaki Steel Corporation
Hisahiro Matsunaga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...