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Semiconductor device
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Patent number 5,668,402
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Issue date Sep 16, 1997
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Hitachi, Ltd.
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Kazuhiro Mochizuki
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Semiconductor device
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Patent number 5,023,687
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Issue date Jun 11, 1991
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Hitachi, Ltd.
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Tomonori Tanoue
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H01 - BASIC ELECTRIC ELEMENTS
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Image pickup tube
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Patent number 4,636,682
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Issue date Jan 13, 1987
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Hitachi, Ltd.
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Chushirou Kusano
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H01 - BASIC ELECTRIC ELEMENTS
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Photoconductive target
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Patent number 4,330,733
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Issue date May 18, 1982
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Nippon Hoso Kyokai
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Keiichi Shidara
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H01 - BASIC ELECTRIC ELEMENTS