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:
Feb. 07, 2012
Filed:
Dec. 02, 2009
Hiroki Iwai, Saitama, JP;
Hiroki Iwai, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
Piezoelectric frames are disclosed that include a tuning-fork type piezoelectric vibrating piece. The vibrating piece has at least a pair of vibrating arms that extend in a longitudinal direction (e.g., Y-direction) from a first end edge of a piezoelectric base, and at least one excitation electrode on the pair of vibrating arms. Respective supporting arms extend in the longitudinal direction, outboard of each vibrating arm. The vibrating piece is surrounded by and attached to a frame portion also made of piezoelectric material. A pair of connecting portions connects the supporting arms to the frame portion. The connecting portions extend from respective supporting arms to the frame portion in a direction that intersects the longitudinal direction. The connecting portions are connected to the frame portion at designated locations that are more than 50% of the designated length of the vibrating piece from the second end edge of the base.