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Fukushima-ken, JP
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last 30 patents
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Patent Grant
Reflector which appears bright when viewed at specific angle and re...
Patent number
6,947,107
Issue date
Sep 20, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
Reflector which appears bright when viewed at specific angle and re...
Publication number
20030001995
Publication date
Jan 2, 2003
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS