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Method of contactlessly transmitting power and data and device therefor
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Method of transmitting power and data for usb device, and device therefor
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Planar coil with core
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Noncontact transmission device
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Noncontact transmission device
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Composite planar coil
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Coil for power transmission
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Air core coil and electric circuit unit using the same
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Laminated flat coil
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Contactless data communication apparatus of portable electronic apparatus
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Data carrier circuit
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