Abstract: The present invention provides a radio communication device (100) in which two antennas is arranged in the same location. The radio communication device (100) includes a first antenna (4) and a second antenna (7). A second conductor element (8) of the second antenna is configured to overlap with a first conductor element (5) of the first antenna. The second antenna is configured to employ, as a second ground plate (9), the first conductor element of the first antenna. A wiring section (10) of the second antenna is configured to pass through a path that overlaps with a short-circuit section (S) of the first antenna.

Abstract: A refrigeration air dryer outputs dehumidified air dehumidified by a cooling operation using a low-temperature refrigerant after the temperature thereof has been raised by exchanging heat with a high-temperature refrigerant at a reheater. The refrigeration air dryer includes a temperature sensor which detects the temperature of secondary air in the outlet pipe, valve means which adjusts the flow rate of the dehumidified air or the flow rate of the refrigerant flowing through the reheater, and a temperature controller which adjusts the flow rate of the dehumidified air or the flow rate of the refrigerant by controlling the valve means based upon the detected temperature detected by the temperature sensor, thereby maintaining the temperature of the secondary air at a constant level.

Abstract: A refrigeration air dryer, which dehumidifies compressed air by cooling the air at a cooler by exchanging heat with a refrigerant, includes a first reheater and a second reheater. The first reheater has a configuration in which warm and moist primary air to be dehumidified is preliminarily cooled by exchanging heat between the primary air and low-temperature dehumidified air dehumidified by the cooler, and is transmitted to the cooler. At the same time, the temperature of the humidified air is raised, and the humidified air is transmitted to the second reheater. The second reheater has a configuration in which the humidified air having a temperature raised by the first reheater is again raised by exchanging heat with the high-temperature refrigerant compressed by the refrigerant compressor, following which the humidified air is externally discharged as secondary air.

Abstract: A component mounting device mounts electronic components from several component stages on a printed circuit board. The component mounting device includes a mounting head, a camera unit, and a selection unit. The mounting head, movably installed between the component stage and the printed circuit board, includes a suction element and a position determination chuck. The suction element picks up and thereafter supports the component, and the position determination chuck corrects the position of the supported component. The camera unit, installed within a movement range of the mounting head, receives an image of the component supported by the suction element. The selection unit selects either the position determination chuck or the camera unit to correct the position of the component supported by the suction element.