Abstract: An ultrasound generation member according to an aspect of the present invention includes an ultrasound generation element configured to emit ultrasound in a direction of a target object in one specific container of a plurality of containers. An ultrasound emission device according to an aspect of the present invention includes the ultrasound generation member, and a drive power supply configured to apply voltage across the ultrasound generation element of the ultrasound generation member. An ultrasound emission device according to an aspect of the present invention includes the ultrasound generation member that includes, as the ultrasound generation element, a plurality of ultrasound generation elements, and a drive power supply configured to apply voltage across the plurality of ultrasound generation elements of the ultrasound generation member.

Abstract: An ultrasound generation member according to an aspect of the present invention includes an ultrasound generation element configured to emit ultrasound in a direction of a target object in one specific container of a plurality of containers. An ultrasound emission device according to an aspect of the present invention includes the ultrasound generation member, and a drive power supply configured to apply voltage across the ultrasound generation element of the ultrasound generation member. An ultrasound emission device according to an aspect of the present invention includes the ultrasound generation member that includes, as the ultrasound generation element, a plurality of ultrasound generation elements, and a drive power supply configured to apply voltage across the plurality of ultrasound generation elements of the ultrasound generation member.