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Hideki Hayashida
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Method for measuring water concentration in ammonia
Patent number
7,091,043
Issue date
Aug 15, 2006
Showa Denko K.K.
Taizou Itou
G01 - MEASURING TESTING
Information
Patent Grant
Ammonia for use in manufacture of GaN-type compound semiconductor a...
Patent number
7,029,940
Issue date
Apr 18, 2006
Showa Denko Kabushiki Kaisha
Hideki Hayashida
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ammonia for use in manufacture of GaN-type compound semiconductor a...
Patent number
6,719,842
Issue date
Apr 13, 2004
Showa Denko Kabushiki Kaisha
Hideki Hayashida
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Recording media comprising monovalent anions
Patent number
6,132,879
Issue date
Oct 17, 2000
Showa Denko K.K.
Kenji Tamura
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
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Patent Application
Ammonia for use in manufacture of GaN-type compound semiconductor a...
Publication number
20040192048
Publication date
Sep 30, 2004
Showa Denko K.K.
Hideki Hayashida
C30 - CRYSTAL GROWTH
Information
Patent Application
AMMONIA FOR USE IN MANUFACTURE OF GAN-TYPE COMPOUND SEMICONDUCTOR A...
Publication number
20030033973
Publication date
Feb 20, 2003
HIDEKI HAYASHIDA
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method for measuring water concentration in ammonia
Publication number
20020061594
Publication date
May 23, 2002
Taizou Itou
C01 - INORGANIC CHEMISTRY