Invention Grant
- Patent Title: Piezoelectric frame and piezoelectric device incorporating same
- Patent Title (中): 压电框架和结合其的压电装置
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Application No.: US12637374Application Date: 2009-12-14
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Publication No.: US08347719B2Publication Date: 2013-01-08
- Inventor: Ryoichi Ichikawa
- Applicant: Ryoichi Ichikawa
- Applicant Address: JP Tokyo
- Assignee: Nihon Dempa Kogyo Co., Ltd.
- Current Assignee: Nihon Dempa Kogyo Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Alix, Yale & Ristas, LLP
- Priority: JP2008-321002 20081217
- Main IPC: G01C19/56
- IPC: G01C19/56 ; H04R17/00
Abstract:
A piezoelectric frame (20) is comprised of a tuning-fork type piezoelectric vibrating piece (30) having a pair of vibrating arms (21) extending from a base portion (23) wherein excitation electrodes are formed on the vibrating arms, an outer frame (22) surrounding the tuning-fork type piezoelectric vibrating piece, a pair of supporting arms (26) extending from the base portion to the outer frame portion and supporting the tuning-fork type piezoelectric vibrating piece; and an acute angle portion (11) formed on a side surface between the outer frame and the tuning-fork type piezoelectric vibrating piece and having an acute angle seen from Z-direction.
Public/Granted literature
- US20100147074A1 Piezoelectric Frame, Piezoelectric Device and Manufacturing Method for Same Public/Granted day:2010-06-17
Information query
