Title:
ULTRASONIC TRANSDUCER AND PARAMETRIC SPEAKER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2024/089918
Kind Code:
A1
Abstract:
The present invention comprises a first vibration plate (110), at least one frame body (120), and at least one ultrasonic vibrator (130). The at least one frame body (120) extends in a longitudinal direction and is joined to the first vibration plate (110). The at least one ultrasonic vibrator (130) is attached to the at least one frame body (120), and faces the first vibration plate (110) with an interval therebetween. The first vibration plate (110) resonantly vibrates in antiphase with the at least one ultrasonic vibrator (130) in a direction orthogonal to the first vibration plate (110). The dimension in the longitudinal direction inside the at least one frame body (120) is at least 4 times the dimension in the short direction orthogonal to the longitudinal direction inside the at least one frame body (120).
Inventors:
YAMAMOTO HIRONARI (JP)
Application Number:
PCT/JP2023/017124
Publication Date:
May 02, 2024
Filing Date:
May 02, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04R17/10; H04R1/02; H04R17/00
Domestic Patent References:
| WO2012090383A1 | 2012-07-05 |
Foreign References:
| JP2020068482A | 2020-04-30 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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