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Tooru Yagasaki
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Suwa, JP
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last 30 patents
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Patent Grant
Background lighting apparatus for liquid crystal display
Patent number
5,931,555
Issue date
Aug 3, 1999
Seiko Epson Corporation
Fumiaki Akahane
G02 - OPTICS
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Patent Grant
Background lighting apparatus for liquid crystal display
Patent number
5,667,289
Issue date
Sep 16, 1997
Seiko Epson Corporation
Fumiaki Akahane
G02 - OPTICS