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Mitsuhiko Masumoto
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Tokyo, JP
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last 30 patents
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Patent Grant
Light control plastic lens, coated sheet-like light control element...
Patent number
7,350,917
Issue date
Apr 1, 2008
Ryozo Kawai
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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last 30 patents
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Patent Application
Light control plastic lens, coated sheet-like light control element...
Publication number
20050168690
Publication date
Aug 4, 2005
FUJI KASEI CO., LTD.
Ryozo Kawai
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL