发明名称 |
Piezoelectric Frame, Piezoelectric Device and Manufacturing Method for Same |
摘要 |
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.
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申请公布号 |
US2010147074(A1) |
申请公布日期 |
2010.06.17 |
申请号 |
US20090637374 |
申请日期 |
2009.12.14 |
申请人 |
NIHON DEMPA KOGYO CO., LTD. |
发明人 |
ICHIKAWA RYOICHI |
分类号 |
G01C19/56;H04R17/00 |
主分类号 |
G01C19/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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