Abstract: There is provided a power conversion apparatus including a first power semiconductor module, a second power semiconductor module, a control circuit for driving the first power semiconductor module and the second power semiconductor module, and liquid-cooling type cooling jackets, wherein the second power semiconductor module is disposed closer to an upper surface in the gravity direction than the first power semiconductor module is, the cooling jackets include a refrigerant containing hydrogen molecules and a refrigerant flow path at least between the first power semiconductor module and the second power semiconductor module, and the control circuit performs control such that the operating time period of the second power semiconductor module is shorter than the operating time period of the first power semiconductor module.

Abstract: A motor driving device controls driving of an inverter device, detects current values in two phases, and compensates a value. The motor driving device detects current values in two phases, namely, a maximum phase current value and a minimum phase current value, within a single cycle of a PWM carrier frequency. The motor driving device compensates a value obtained by subtracting an absolute value of a difference between two absolute values, namely, the detected maximum phase current value and minimum phase current value, from the smaller value of the absolute values, as the offset current component.

Abstract: An object of the present invention is to provide an inverter driving device and an electric system which are capable of accurately detecting an offset amount of a current detection circuit that detects a motor current using a direct bus current, and compensating for the detected offset amount, to improve detection accuracy of the motor current and control the motor appropriately, without increasing the number of components of the inverter driving device.

Abstract: An inkjet head cleaning apparatus 1 that moves an inkjet head 10 from a printing position P1 to a cleaning position P2 to perform cleaning, the inkjet head cleaning apparatus 1 comprising a conveying means 20 for conveying the inkjet head 10 between the printing position P1 and the cleaning position P2 and a cleaning means 30 for cleaning a discharge surface 12 of the inkjet head 10 conveyed to the cleaning position P1, wherein the conveying means 20 changes the orientation of the inkjet head 10 such that the orientation of the discharge surface 12 of the inkjet head 10 is different in the printing position P1 and in the cleaning position P2.

Abstract: Disclosed is an edible object marking apparatus (1) wherein a carrier means (20) successively conveys an edible object to a detecting means (210), a marking means (220), and a marking inspecting means (230) while holding the edible object, wherein the detecting means (210) captures an image of the edible object to acquire orientational data indicating the orientation of the edible object, the marking means (220) forms a pre-set marking pattern in accordance with the orientation of the edible object based on the orientational data, and the marking inspecting means (230) captures an image of the edible object, extracts marking pattern data, compares the marking pattern data with pre-set reference pattern data based on the orientational data acquired by the detecting means (210) to thereby inspect marking accuracy. This edible object marking apparatus makes it possible to promptly and easily obtain edible objects provided with an accurate marking.

Abstract: An inkjet marking apparatus 1, wherein a printing means 220 comprises a printhead 222 provided with a plurality of nozzles 224 in a direction intersecting the conveying direction of printing substrates P, the printhead 222 is supported so as to be movable in a direction in which the nozzles 224 are arranged, and a control means, at a time of nozzle change when the nozzles 224 to be used are changed, suspends the operation of a feeding means 10 to form a non-holding area on a carrier means 20 where the printing substrates P are not held in a holding part 22 and, after the printing substrates P are printed, moves the printhead 222 during a time when the non-holding area passes through a printing area A.

Abstract: An inkjet marking apparatus 1, wherein a printing means 220 comprises a printhead 222 provided with a plurality of nozzles 224 in a direction intersecting the conveying direction of printing substrates P, the printhead 222 is supported so as to be movable in a direction in which the nozzles 224 are arranged, and a control means, at a time of nozzle change when the nozzles 224 to be used are changed, suspends the operation of a feeding means 10 to form a non-holding area on a carrier means 20 where the printing substrates P are not held in a holding part 22 and, after the printing substrates P are printed, moves the printhead 222 during a time when the non-holding area passes through a printing area A.

Abstract: An inkjet head cleaning apparatus 1 that moves an inkjet head 10 from a printing position P1 to a cleaning position P2 to perform cleaning, the inkjet head cleaning apparatus 1 comprising a conveying means 20 for conveying the inkjet head 10 between the printing position P1 and the cleaning position P2 and a cleaning means 30 for cleaning a discharge surface 12 of the inkjet head 10 conveyed to the cleaning position P1, wherein the conveying means 20 changes the orientation of the inkjet head 10 such that the orientation of the discharge surface 12 of the inkjet head 10 is different in the printing position P1 and in the cleaning position P2.

Abstract: Disclosed is an edible object marking apparatus (1) wherein a carrier means (20) successively conveys an edible object to a detecting means (210), a marking means (220), and a marking inspecting means (230) while holding the edible object, wherein the detecting means (210) captures an image of the edible object to acquire orientational data indicating the orientation of the edible object, the marking means (220) forms a pre-set marking pattern in accordance with the orientation of the edible object based on the orientational data, and the marking inspecting means (230) captures an image of the edible object, extracts marking pattern data, compares the marking pattern data with pre-set reference pattern data based on the orientational data acquired by the detecting means (210) to thereby inspect marking accuracy. This edible object marking apparatus makes it possible to promptly and easily obtain edible objects provided with an accurate marking.

Abstract: AV equipment enables individual initial setting for each user utilizing near field communication without requiring any cumbersome operation. A determiner determines whether or not identification information of a portable device obtained by a near field communicator is identical to registered identification information to detect the registered portable device, which is located close to the AV equipment. A setter reads initial setting detail corresponding to the portable device detected by the determiner from the memory, and sets the read initial setting detail to the AV equipment. In searching the portable device, an output power controller initially sets the output power to an initial value, and gradually increases the output power while the registered portable device is not detected.