CONTACTLESS POWER RECEIVING DEVICE, CONTACTLESS POWER TRANSMITTING DEVICE, CONTACTLESS POWER SUPPLY SYSTEM, AND VEHICLE

In a noncontact electric power feeding system using a resonance method, electrical equipment (400) installed within a coil case is configured to include an electric power receiving antenna (410) and a rectifier (420) in an integrated manner. The electrical equipment (400) is driven by receiving electric power from an electromagnetic field generated by electromagnetic resonance, without power supply from the outside of the coil case.