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Liquid crystal device
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Patent number 5,135,678
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Issue date Aug 4, 1992
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Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
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Makoto Murata
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G02 - OPTICS
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Liquid crystal display element
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Patent number 5,080,938
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Issue date Jan 14, 1992
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Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
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Masakazu Uekita
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Liquid crystal device
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Patent number 4,911,958
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Issue date Mar 27, 1990
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Matsushita Electric Industrial Co., Ltd.
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Hideaki Mochizuki
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B82 - NANO-TECHNOLOGY