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Clock signal supply system
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Patent number 5,184,027
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Issue date Feb 2, 1993
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Hitachi, Ltd.
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Noboru Masuda
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G06 - COMPUTING CALCULATING COUNTING
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Superconducting logic circuit
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Patent number 5,151,617
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Issue date Sep 29, 1992
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Research Development Corporation of Japan
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Eiichi Goto
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H03 - BASIC ELECTRONIC CIRCUITRY
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Connector structure
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Patent number 4,806,111
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Issue date Feb 21, 1989
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Hitachi, Ltd.
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Masaaki Nishi
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H01 - BASIC ELECTRIC ELEMENTS
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