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Sohachi Iwai
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Wako, JP
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Patents Grants
last 30 patents
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Patent Grant
Ultraviolet light-emitting device in which p-type semiconductor is...
Patent number
7,691,202
Issue date
Apr 6, 2010
Riken
Hideki Hirayama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ultraviolet light-emitting device in which p-type semiconductor is...
Patent number
7,309,394
Issue date
Dec 18, 2007
Riken
Hideki Hirayama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
Ultraviolet light-emitting device in which p-type semiconductor is...
Publication number
20080042162
Publication date
Feb 21, 2008
Hideki Hirayama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ultraviolet light-emitting device in which p-type semiconductor is...
Publication number
20040211967
Publication date
Oct 28, 2004
Hideki Hirayama
H01 - BASIC ELECTRIC ELEMENTS