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last 30 patents
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Patent Grant
Transmission type screen having directional light scattering lens a...
Patent number
7,330,311
Issue date
Feb 12, 2008
Arisawa Mfg. Co., Ltd.
Makoto Soyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
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Patent Application
Transmission type screen
Publication number
20070008618
Publication date
Jan 11, 2007
Arisawa Mfg. Co., Ltd.
Makoto Soyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Fresnel lens sheet
Publication number
20060198033
Publication date
Sep 7, 2006
Arisawa Mfg. Co., Ltd.
Makoto Soyama
G02 - OPTICS