Invention Grant
- Patent Title: Ultrasonic generation device
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Application No.: US14223357Application Date: 2014-03-24
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Publication No.: US09636709B2Publication Date: 2017-05-02
- Inventor: Hironari Yamamoto , Akihiro Mitani
- Applicant: MURATA MANUFACTURING CO., LTD.
- Applicant Address: JP Ngaokakyo-Shi, Kyoto-Fu
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Ngaokakyo-Shi, Kyoto-Fu
- Agency: Arent Fox LLP
- Priority: JP2011-219541 20111003
- Main IPC: H01L41/09
- IPC: H01L41/09 ; B06B1/06 ; G10K9/22 ; H04R1/28 ; H04R17/02

Abstract:
An ultrasonic generation device including an ultrasonic generation element having a frame, a first piezoelectric vibrator, and a second piezoelectric vibrator and configured to emit ultrasonic waves in a buckling tuning-fork vibration mode in which the first piezoelectric vibrator and the second piezoelectric vibrator vibrate in mutually opposite phases at the same frequency. Further, a housing receives the ultrasonic generation element and has ultrasonic emission ports, a first acoustic path extending from a vicinity of a vibration surface of the first piezoelectric vibrator to a vicinity of the ultrasonic emission ports, and a second acoustic path extending from a vicinity of a vibration surface of the second piezoelectric vibrator to the vicinity of the ultrasonic emission ports.
Public/Granted literature
- US20140203684A1 ULTRASONIC GENERATION DEVICE Public/Granted day:2014-07-24
Information query
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