Abstract: An electronic component according to the present invention includes: a leadout electrode portion provided on an outer surface of an element main body; and a resin electrode layer formed at a part of the outer surface of the element main body and connected to the leadout electrode portion. The leadout electrode portion contains copper as a main component, and the resin electrode layer includes a conductor powder containing silver, and a resin. Further, a diffusion layer containing copper oxide and silver is formed at an interface between the leadout electrode portion and the resin electrode layer.

Abstract: A coil device includes a conductor and a terminal electrode. The conductor is embedded in a core body and wound in a coil shape. The terminal electrode is formed on an end surface of the core body and connected with a lead end of the conductor. The coil device further includes a dummy conductor embedded in the core body separately from the conductor. An end part of the dummy conductor exposed from the end surface of the core body separately from the lead end is connected with the terminal electrode.

Abstract: A coil device includes a conductor and a terminal electrode. The conductor is embedded in a core body and wound in a coil shape. The terminal electrode is formed on an end surface of the core body and connected with a lead end of the conductor. The coil device further includes a dummy conductor embedded in the core body separately from the conductor. An end part of the dummy conductor exposed from the end surface of the core body separately from the lead end is connected with the terminal electrode.

Abstract: A data communication apparatus includes a band-elimination filter configured to perform a process of reducing a specific frequency component included in transmission data, a packet producer configured to produce packet data including therein data outputted from the band-elimination filter, and an antenna configured to output the packet data produced by the packet producer, and further, the band-elimination filter is configured to reduce a frequency component corresponding to the reciprocal of a packet transmission cycle inherent in the packet data.

Abstract: A data communication apparatus includes a band-elimination filter configured to perform a process of reducing a specific frequency component included in transmission data, a packet producer configured to produce packet data including therein data outputted from the band-elimination filter, and an antenna configured to output the packet data produced by the packet producer, and further, the band-elimination filter is configured to reduce a frequency component corresponding to the reciprocal of a packet transmission cycle inherent in the packet data.

Abstract: A space diversity receiver is provided in which missing data can be prevented with a simple configuration even if there occur some errors in the frame synchronous pattern. The space diversity receiver having first and second reception antennas 4, 5 that receive packet data in which a predetermined frame synchronous pattern is inserted in every fixed period to be compared with the predetermined frame synchronous pattern so that whether to employ packet data X1 received by the first antenna 4 or to employ packet data X2 received by the second antenna 5 is determined, includes exclusive NOR circuits 20, 21 in which the frame synchronous patterns of the packet data X1 and X2 received by the first and second reception antennas 4, 5 and the predetermined frame synchronous pattern are compared to employ the packet data received by the reception antenna having a larger number of bits matched.