A portable heated mist inhaler has a body, a supply tank of liquid, an atomizer for atomizing the liquid, and a thermostatically controlled heated nozzle. The supply tank feeds liquid to the atomizer. The atomizer creates a stream of mist from the liquid and entrained surrounding air. The mist is heated inside the nozzle so that it will be comfortable for the user. The portable heated mist inhaler has a battery which powers the atomizer and the heated nozzle.

A dual-intake diffuser that has a housing, a selectively attachable base, a selectively attachable cap, a wick, and a diffuser element. The selectively attachable base and selectively attachable cap are configured to receive a composition. The diffuser element is configured to diffuse liquid at an opening in the cap. The diffuser system may include a connector and lighting element.

A controller for controlling an atomizing unit, wherein the atomizing unit includes a piezoelectric element substrate including an IDT including a pair of interlocking comb-shaped metallic electrodes, and a liquid supplier configured to supply liquid, which is to be atomized, to the piezoelectric element substrate; wherein the piezoelectric element substrate is configured to atomize the liquid by use of a surface acoustic wave generated by applying a high-frequency voltage to the pair of interlocking comb-shaped metallic electrodes; and the controller is configured to periodically change amplitude and/or a frequency of the high-frequency voltage applied to the pair of interlocking comb-shaped metallic electrodes.

Provided is a liquid ejection device that includes a nozzle that ejects a liquid, a liquid conveying tube that conveys the liquid to the nozzle, an outer tube that is internally provided with the nozzle and the liquid conveying tube, and a first vibration applying unit that applies vibration to the nozzle or the liquid conveying tube. The first vibration applying unit is provided between the nozzle and the outer pipe or between the liquid conveying tube and the outer pipe.

An ultrasonic electronic cigarette is disclosed. The electronic cigarette includes an atomizer (1) and a battery assembly (2) detachably connected to each other. The atomizer (1) comprises an ultrasonic atomization sheet (3), and the battery assembly (2) comprises a first battery electrode (4) and a second battery electrode (5) for supplying power to the atomizer (1). When the atomizer (1) is connected to the battery assembly (2), a first pole of the ultrasonic atomization sheet (3) is electrically connected to the first battery electrode (4), and a second pole of the ultrasonic atomization sheet (3) is electrically connected to the second battery electrode (5).

A inhaler includes a piezoelectric element substrate having an IDT constructed by use of a pair of interlocking comb-shaped metallic electrodes, a liquid supplier for supplying liquid, which is to be atomized, to a front surface of the piezoelectric element substrate on which the pair of interlocking comb-shaped metallic electrodes is positioned, a sensor, which includes at least a pair of detection parts which are opposite to each other, for detecting liquid supplied to the front surface of the piezoelectric element substrate, and a controller for controlling, based on result of detection by the sensor, the liquid supplier in such a manner that the liquid supplier supplies a certain quantity of the liquid to the front surface of the piezoelectric element substrate.

An inhaler includes an atomizing unit including a piezoelectric element substrate having a first IDT including a pair of interlocking comb-shaped electrodes. The atomizing unit is configured to atomize liquid by a surface acoustic wave generated by applying a high-frequency voltage to the pair of interlocking comb-shaped electrodes, and a controller is configured to monitor a resonant frequency of the pair of interlocking comb-shaped electrodes and apply a voltage to the pair of interlocking comb-shaped electrodes at a frequency determined based on the monitored resonant frequency.

The present invention discloses an ultrasonic essential oil atomizer, which includes an ultrasonic energy conversion device, having an energy conversion sheet and a driving circuit electrically connected to the energy conversion sheet, wherein a working voltage of the driving circuit is below 8V; at least one oiler, disposed on the ultrasonic energy conversion device and having a connection portion and an oil guiding cavity communicating with the connecting portion, wherein a nozzle is disposed at the bottom of the oil guiding cavity and the nozzle is disposed on a surface of the energy conversion sheet; and at least one essential oil bottle, having a bottle body and an inner lid, wherein the bottle body has a cavity and a bottle mouth communicating with the cavity, the inner lid includes a lid portion and an air intake portion disposed at a side of the lid portion, the lid portion is disposed on the bottle mouth, the bottle mouth is connected to the connection portion, an oil outlet and an air inlet are disposed on the lid portion, the oil outlet communicates with the cavity and the oil guiding cavity, the air inlet is disposed at a side of the oil outlet and communicates with the air intake portion, and the air intake portion extends to an interior of the cavity and is further communicating with the interior of the cavity. The ultrasonic essential oil atomizer may achieve the atomization of the water-soluble and non-water-soluble essential oils, and has a function for automatically replenishing the essential oil, with simple structure and the small size.

A centrifugal compressor according to an embodiment includes a compressor impeller, a compressor housing, a suction-surface-side member disposed on a suction surface side of the compressor impeller, and a piezoelectric vibrator disposed in at least one of the compressor housing or the suction-surface-side member. The compressor housing and the suction-surface-side member have wall surfaces defining a space surrounded by the compressor housing and the suction-surface-side member. The wall surface of the at least one of the compressor housing or the suction-surface-side member is at least partially vibratable by operation of the piezoelectric vibrator.

An ultrasonic water jet apparatus includes a water accumulation part in which the water supplied from a water supply source is temporarily accumulated, a jet port that jets the water accumulated in the water accumulation part, and a piezoelectric vibration plate including a dome part that is disposed opposed to the jet port in the water accumulation part and propagates the ultrasonic vibration to the water accumulated in the water accumulation part, a flange part that projects outward in the radial direction from a peripheral edge of the dome part, and an annular plate that projects outward in the radial direction from a peripheral edge of the flange part.