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. 08, 2013
Filed:
Dec. 14, 2009
Ryoichi Ichikawa, Saitama, JP;
Ryoichi Ichikawa, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
A piezoelectric frame () is comprised of a tuning-fork type piezoelectric vibrating piece () having a pair of vibrating arms () extending from a base portion () wherein excitation electrodes are formed on the vibrating arms, an outer frame () surrounding the tuning-fork type piezoelectric vibrating piece, a pair of supporting arms () extending from the base portion to the outer frame portion and supporting the tuning-fork type piezoelectric vibrating piece; and an acute angle portion () 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.