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Tomohiro Yokota
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Aichi, JP
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last 30 patents
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Patent Grant
Light adjusting sheet for a planar lighting device and a planar lig...
Patent number
5,764,315
Issue date
Jun 9, 1998
Sekisui Chemical Co., Ltd.
Tomohiro Yokota
G02 - OPTICS
Information
Patent Grant
Light adjusting sheet having a sinusoidal surface and a non-optical...
Patent number
5,552,907
Issue date
Sep 3, 1996
Sekisui Chemical Co., Ltd.
Tomohiro Yokota
G02 - OPTICS
Information
Patent Grant
Liquid crystal display using a plurality of light adjusting sheets...
Patent number
5,394,255
Issue date
Feb 28, 1995
Sekisui Kagaku Kogyo Kabushiki Kaisha
Tomohiro Yokota
G02 - OPTICS