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IC card
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Patent number 5,225,667
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Issue date Jul 6, 1993
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Mitsubishi Denki Kabushiki Kaisha
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Shigeru Furuta
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G06 - COMPUTING CALCULATING COUNTING
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Non-contact IC card
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Patent number 5,212,373
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Issue date May 18, 1993
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Mitsubishi Denki Kabushiki Kaisha
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Shuzo Fujioka
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G06 - COMPUTING CALCULATING COUNTING
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Memory device
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Patent number 5,056,089
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Issue date Oct 8, 1991
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Mitsubishi Denki Kabushiki Kaisha
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Shigeru Furuta
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G06 - COMPUTING CALCULATING COUNTING
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Microcomputer
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Patent number 5,047,924
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Issue date Sep 10, 1991
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Mitsubishi Denki Kabushiki Kaisha
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Shuzo Fujioka
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G06 - COMPUTING CALCULATING COUNTING
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IC card
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Patent number 5,019,970
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Issue date May 28, 1991
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Mitsubishi Denki Kabushiki Kaisha
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Atsuo Yamaguchi
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G06 - COMPUTING CALCULATING COUNTING
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