ULTRASONIC IRRADIATION APPARATUS AND SYSTEM, AND ULTRASONIC IRRADIATION METHOD
1 Assignment
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Accused Products
Abstract
An ultrasonic irradiation apparatus includes an ultrasonic resonator capable of generating ultrasound, a driving unit configured to drive the ultrasonic resonator, a case holding the ultrasonic resonator and the driving unit, an acoustic matching layer provided between the ultrasonic resonator and the case, and an acoustic diffusion layer made of an ultrasound diffusing material configured to diffuse high intensity ultrasound emitted from the ultrasonic resonator and convert the high intensity ultrasound into low intensity ultrasound with low intensity per unit area and radiate in a large area. The ultrasonic resonator is a piezoelectric resonator, the ultrasound diffusing material of the acoustic diffusion layer is made of a metal material of an acoustic impedance of at least 40, and the acoustic diffusion layer is provided in at least one of inside of the acoustic matching layer, inside of the case, and outside of the case.
3 Citations
74 Claims
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1-21. -21. (canceled)
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22. An ultrasonic irradiation apparatus comprising:
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an ultrasonic resonator capable of generating ultrasound; a driving unit configured to drive the ultrasonic resonator; a case holding the ultrasonic resonator and the driving unit; an acoustic matching layer provided between the ultrasonic resonator and the case; and an acoustic diffusion layer made of an ultrasound diffusing material configured to diffuse high intensity ultrasound emitted from the ultrasonic resonator and convert the high intensity ultrasound into low intensity ultrasound with low intensity per unit area and radiate in a large area; wherein the ultrasonic resonator is a piezoelectric resonator, the ultrasound diffusing material of the acoustic diffusion layer is made of a metal material of an acoustic impedance of at least 40, and the acoustic diffusion layer is provided in at least one of inside of the acoustic matching layer, inside of the case, and outside of the case. - View Dependent Claims (25, 28, 32, 35, 38, 41, 44, 47, 48, 51, 54, 57, 60, 63, 66, 69, 72)
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23. An ultrasonic irradiation apparatus comprising:
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an ultrasonic resonator capable of generating ultrasound; a driving unit configured to drive the ultrasonic resonator; a case holding the ultrasonic resonator and the driving unit; an acoustic matching layer provided between the ultrasonic resonator and the case; and an acoustic diffusion layer made of an ultrasound diffusing material configured to diffuse high intensity ultrasound emitted from the ultrasonic resonator and convert the high intensity ultrasound into low intensity ultrasound with low intensity per unit area and radiate in a large area; wherein the ultrasonic resonator is a piezoelectric resonator, the ultrasound diffusing material of the acoustic diffusion layer is made of a metal material, and is made of a porous wire net of which opening is λ
-λ
/10 with respect to an underwater wavelength λ
of used ultrasound. - View Dependent Claims (26, 29, 33, 36, 39, 42, 45, 49, 52, 55, 58, 61, 64, 67, 70, 73)
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24. An ultrasonic irradiation apparatus comprising:
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an ultrasonic resonator capable of generating ultrasound; a driving unit configured to drive the ultrasonic resonator; a case holding the ultrasonic resonator and the driving unit; an acoustic matching layer provided between the ultrasonic resonator and the case; and an acoustic diffusion layer made of an ultrasound diffusing material configured to diffuse high intensity ultrasound emitted from the ultrasonic resonator and convert the high intensity ultrasound into low intensity ultrasound with low intensity per unit area and radiate in a large area; wherein the ultrasonic resonator is a piezoelectric resonator, and the ultrasound diffusing material of the acoustic diffusion layer is made of foamed resin containing 90 to 99 volume % of air bubbles and gas. - View Dependent Claims (27, 30, 34, 37, 40, 43, 46, 50, 53, 56, 59, 62, 65, 68, 71, 74)
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31. An ultrasonic irradiation apparatus comprising:
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an ultrasonic resonator capable of generating ultrasound; a driving unit configured to drive the ultrasonic resonator; a case holding the ultrasonic resonator and the driving unit; and an acoustic matching layer provided between the ultrasonic resonator and the case; wherein the ultrasonic resonator having at least one of two frequencies and two pulse repetition frequencies is placed in the case, and these continuously and automatically generate a plurality of ultrasounds when driven by the driving unit.
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Specification