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:
Sep. 22, 2009
Hiroki Iwai, Saitama, JP;
Yu Iwai, Saitama, JP;
Hiroshi Uehara, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
An exemplary piezoelectric vibrating device has a lid plate, a chip plate including a tuning-fork type vibrating piece surrounded by an outer frame, and a package base arranged where the chip plate is sandwiched between the lid plate and package base, and the three layers are bonded together. The tuning-fork type piezoelectric vibrating piece is connected to the outer frame by supporting arms. A base-movement buffer having a predetermined height in the X-direction extends from the inner edge surface of the outer frame toward a side edge of the base. The base-movement buffer has a height in the X-direction that is proportional to the length from the base-movement buffer to a point at which the tuning-fork type piezoelectric vibrating piece is coupled to the outer frame.