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Kou Ohwada
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Fukushima-ken, JP
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Patents Grants
last 30 patents
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Patent Grant
Surface-emitting device precisely positioned in the front of liquid...
Patent number
6,692,134
Issue date
Feb 17, 2004
Alps Electric Co., Ltd.
Kou Ohwada
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
Surface-emitting device precisely positioned in the front of liquid...
Publication number
20030007343
Publication date
Jan 9, 2003
Alps Electric Co., Ltd.
Kou Ohwada
G02 - OPTICS