The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2017
Filed:
May. 27, 2014
Daishinku Corporation, Kakogawa-shi, Hyogo, JP;
DAISHINKU CORPORATION, Kakogawa-shi, JP;
Abstract
A tuning fork type piezoelectric vibration pieceincludes a base portionin which a piezoelectric vibration substrate has a connection area with an external element, and a pair of leg portionsprojecting from a first end face of the base portion. The pair of leg portions has vibrating portionsequipped with drive electrodes, wide weight portionsformed at tip ends of the vibrating portions, and connecting portionsbetween the vibrating portions and the weight portions. The connecting portions have widening sections whose width increases exponentially from the vibrating portions to the weight portions. The length of the widening sections is greater than their width. The weight portions have constant-width parts whose width is fixed from their connecting positions with the connecting portions. The weight portions are free of drive electrodes.