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Pattern printed sheet
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Patent number 9,213,929
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Issue date Dec 15, 2015
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Dai Nippon Printing Co., Ltd.
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Keiko Tazaki
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G06 - COMPUTING CALCULATING COUNTING
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Optical element
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Patent number 7,847,915
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Issue date Dec 7, 2010
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Dai Nippon Printing Co., Ltd.
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Keiko Tazaki
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G02 - OPTICS
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Optical element
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Patent number 7,663,722
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Issue date Feb 16, 2010
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Dai Nippon Printing Co., Ltd.
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Keiko Tazaki
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G02 - OPTICS
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Optical element
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Patent number 7,224,426
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Issue date May 29, 2007
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Dai Nippon Printing Co., Ltd.
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Keiko Tazaki
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G02 - OPTICS