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Projection type display device
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Patent number 5,398,086
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Issue date Mar 14, 1995
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Mitsubishi Denki Kabushiki Kaisha
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Masaaki Nakano
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Display element
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Patent number 5,126,620
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Issue date Jun 30, 1992
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Mitsubishi Denki Kabushiki Kaisha
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Kohsuke Haraga
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H01 - BASIC ELECTRIC ELEMENTS
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Input pen data input tablet
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Patent number 4,868,351
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Issue date Sep 19, 1989
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Mitsubishi Denki Kabushiki Kaisha
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Shoyu Watanabe
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G06 - COMPUTING CALCULATING COUNTING
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Display unit
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Patent number 4,841,290
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Issue date Jun 20, 1989
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Mitsubishi Denki Kabushiki Kaisha
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Masaaki Nakano
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G06 - COMPUTING CALCULATING COUNTING