• Acoustic oscillations of a gas column in narrow flow channels can lead to various thermal phenomena such as production and amplification of acoustic power from heat and generation of low temperatures. We aim at understanding these thermoacoustic phenomena from experimental point of view, and developing heat engines that can operate without any moving parts like solid pistons.

Acoustic prime mover can use various heat sources like industrial waste heat and sunlight. Acoustic cooler is a Helium-gas based heat pump that needs no Freon gases as a coolant.

• We have developed a power plug system that enables power to be supplied with a commonly-used power cable without using a AC power adapter for all types of electrical equipment around us. Furthermore, by monitoring the operating current of electrical equipments, the operating state of the equipment can be ascertained, and while monitoring the health of the equipment, an abnormality diagnosis and failure can be predicted and the user can be notified in advance. We are also researching how to realize a power supply system and innovate the usage style of all home appliances so that they can be used comfortably and comfortably. In particular, by observing the waveform of the current flowing through the power cord while each individual electrical device is in use, letting the artificial intelligence learn the current waveform, and clarifying the relationship between the current waveform and the abnormality, failure, or deterioration mode. It is intended to diagnose abnormalities and predict failures.