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Saitama-ken, JP
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last 30 patents
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Patent Grant
Silicon nitride powder, silicon nitride sintered body, sintered sil...
Patent number
7,031,166
Issue date
Apr 18, 2006
Hitachi Metals, Ltd.
Hisayuki Imamura
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Patent Grant
Silicon nitride powder, silicon nitride sintered body, sintered sil...
Patent number
6,846,765
Issue date
Jan 25, 2005
Hitachi Metals, Ltd.
Hisayuki Imamura
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
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Patent Application
Silicon nitride power, silicon nitride sintered body, sintered sili...
Publication number
20050094381
Publication date
May 5, 2005
HITACHI METALS, LTD
Hisayuki Imamura
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Application
Silicon nitride powder, silicon nitride sintered body, sintered sil...
Publication number
20020164475
Publication date
Nov 7, 2002
HITACHI METALS, LTD
Hisayuki Imamura
C01 - INORGANIC CHEMISTRY