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Memory device
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Patent number 6,753,568
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Issue date Jun 22, 2004
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Hitachi, Ltd.
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Kazuo Nakazato
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G11 - INFORMATION STORAGE
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Radiation detector
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Patent number 4,937,454
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Issue date Jun 26, 1990
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Hitachi, Ltd.
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Haruo Itoh
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H01 - BASIC ELECTRIC ELEMENTS
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Solar cell
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Patent number 4,721,535
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Issue date Jan 26, 1988
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Director-General of the Agency of Industrial Science and Technology
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Haruo Itoh
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H01 - BASIC ELECTRIC ELEMENTS
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Thin film solar cell
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Patent number 4,433,202
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Issue date Feb 21, 1984
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Hitachi, Ltd.
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Eiichi Maruyama
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H01 - BASIC ELECTRIC ELEMENTS
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Light-sensitive film
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Patent number 4,289,822
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Issue date Sep 15, 1981
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Hitachi, Ltd.
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Toshikazu Shimada
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY