Patent ID: 8666312
Filing Date: 2014-03-04
Classification: H04B

Abstract:
1. An electric-field communication device which induces, in an electric-field transmission medium, an electric field based on information to be transmitted, and uses the electric field to transmit and receive the information, the electric-field communication device comprising: a communication circuit; a case accommodating the communication circuit therein; a first electrode electrically connected to an input/output terminal of the communication circuit, and disposed on an outer surface of the case; a second electrode electrically connected to a reference potential of the communication circuit, and disposed on an outer surface of the case while being insulated from the first electrode; at least one insulating film provided on an outer side of at least one of the first electrode and the second electrode; and at least one metal layer provided on the insulating film, wherein the insulating film insulates the metal layer from the at least one of the first electrode and the second electrode on which the insulating film is provided, wherein both the first electrode and the second electrode have plate-like shapes.