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Electron microscope
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Patent number 6,084,239
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Issue date Jul 4, 2000
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Hitachi, Ltd.
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Tomoyuki Miyata
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H01 - BASIC ELECTRIC ELEMENTS
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Electron Microscope
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Patent number 5,864,138
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Issue date Jan 26, 1999
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Hitachi, Ltd.
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Tomoyuki Miyata
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H01 - BASIC ELECTRIC ELEMENTS
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Electron microscope
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Patent number D381031
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Issue date Jul 15, 1997
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Hitachi, Ltd.
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Tomoyuki Miyata
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D16 - Photography and optical equipment