Title:
PIEZOELECTRIC TRANSDUCER
Document Type and Number:
WIPO Patent Application WO/2020/129296
Kind Code:
A1
Abstract:
A tabular part (121) has a plurality of first connecting regions (121R) connected to a connecting part (123) across the entire thickness in the vertical direction. The plurality of first connecting regions (121R) are located along the circumferential direction of an outer circumferential side face (121S) of the tabular part (121) by being spaced apart from each other. A base end part (122) has a plurality of second connecting regions (122R) connected to the connecting part (123) across the entire thickness in the vertical direction. The plurality of second connecting regions (122R) are located along the circumferential direction by being spaced apart from each other. The connecting part (123) has a shape that is made discontinuous by at least one groove (124) provided in a membrane part (120) on each of a plurality of virtual straight lines (L) extending from a discretionary first connecting region (121R) out of the plurality of first connecting regions (121R) toward the outer circumferential side of the tabular part (21) and passing through a discretionary second connecting region (122R) out of the plurality of second connecting regions (122R).
Inventors:
UMEZAWA SEIJI (JP)
IKEUCHI SHINSUKE (JP)
KUROKAWA FUMIYA (JP)
MOCHIDA YOICHI (JP)
ADACHI NOBUYOSHI (JP)
IKEUCHI SHINSUKE (JP)
KUROKAWA FUMIYA (JP)
MOCHIDA YOICHI (JP)
ADACHI NOBUYOSHI (JP)
Application Number:
PCT/JP2019/032101
Publication Date:
June 25, 2020
Filing Date:
August 16, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04R17/00; H01L41/09; H01L41/113
Foreign References:
| JPS63316999A | 1988-12-26 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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