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Coil device, and wireless power transmitter and wireless power receiver having the same

  • US 9,287,041 B2
  • Filed: 03/14/2014
  • Issued: 03/15/2016
  • Est. Priority Date: 12/20/2013
  • Status: Active Grant
First Claim
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1. A coil device, comprising:

  • a case having a reception space and varying a charging area upon a user'"'"'s selection; and

    a coil part, having, in the reception space of the case, a coil body formed of a wound conductor having a predetermined length, wherein a gap between turns of the wound conductor of the coil body varies as the charging area of the case varies.

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