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IC card
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Patent number 5,982,624
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Issue date Nov 9, 1999
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Mitsubishi Denki Kabushiki Kaisha
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Shigeo Onoda
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G06 - COMPUTING CALCULATING COUNTING
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IC card
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Patent number 5,926,374
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Issue date Jul 20, 1999
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Mitsubishi Denki Kabushiki Kaisha
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Shigeo Onoda
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Semiconductor device card
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Patent number 5,886,402
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Issue date Mar 23, 1999
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Mitsubishi Denki Kabushiki Kaisha
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Shigeo Onoda
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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IC memory card
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Patent number 5,578,868
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Issue date Nov 26, 1996
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Mitsubishi Denki Kabushiki Kaisha
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Jun Obuchi
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G06 - COMPUTING CALCULATING COUNTING