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Keizo Aramaki
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Gifu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Gas blowing plug and manufacturing method therefor
Patent number
6,872,344
Issue date
Mar 29, 2005
Tokyo Yogyo Kabushiki Kaisha
Keizo Aramaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Gas blowing plug and manufacturing method therefor
Patent number
6,551,550
Issue date
Apr 22, 2003
Tokyo Yogyo Kabushiki Kaisha
Keizo Aramaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Bottom blown gas blowing apparatus for molten metal ladle
Patent number
5,945,063
Issue date
Aug 31, 1999
Tokyo Yogyo Kabushiki Kaisha
Keizo Aramaki
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Refractory for gas blowing for molten metal refining vessel
Patent number
5,265,850
Issue date
Nov 30, 1993
Tokyo Yogyo Kabushiki Kaisha
Keizo Aramaki
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
Information
Patent Application
Gas blowing plug and manufacturing method therefor
Publication number
20030111778
Publication date
Jun 19, 2003
Keizo Aramaki
C21 - METALLURGY OF IRON