Title:
PIEZOELECTRIC DIAPHRAGM AND PIEZOELECTRIC VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/255113
Kind Code:
A1
Abstract:
A crystal diaphragm (10) is provided with a vibration unit (11), an outer frame (12) which surrounds the outer periphery of the vibration unit (11), and a holding unit (13) which links the vibration unit (11) and the outer frame (12), wherein flat sections (13a, 13b) are provided on each of a pair of facing first and second primary surfaces of the holding unit (13), and on one flat section (13b), the width of the holding unit (13) in the width direction is greater than that of the other flat section (13a).
Inventors:
FUJINO KAZUYA (JP)
ONISHI MANABU (JP)
ONISHI MANABU (JP)
Application Number:
PCT/JP2022/020790
Publication Date:
December 08, 2022
Filing Date:
May 19, 2022
Export Citation:
Assignee:
DAISHINKU CORP (JP)
International Classes:
H03H9/19
Foreign References:
| JP2008206079A | 2008-09-04 | |||
| JP2010147667A | 2010-07-01 | |||
| JP2010213262A | 2010-09-24 | |||
| JP2016178589A | 2016-10-06 | |||
| JP2008301022A | 2008-12-11 | |||
| JP2020088725A | 2020-06-04 |
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
Download PDF: