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:
Dec. 31, 2013
Filed:
Aug. 12, 2011
Ryoichi Ichikawa, Sayama, JP;
Yoshiaki Amano, Sayama, JP;
Kenji Kamezawa, Sayama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
To provide a piezoelectric device prevented from overflowing of sealing materials. The piezoelectric device () stores a piezoelectric vibrating piece () having a pair of excitation electrodes. The piezoelectric device comprises: a package lid (), including a first bonding surface (M) formed in periphery of the package lid in a circumferential pattern and a lid recess (); a package base (), including a second bonding surface (M), a base recess surrounded by a second bonding surface that is higher than the second bonding surface, and a pair of seats that is protruding from the base recess, situated for mounting the piezoelectric piece; a piezoelectric piece mounted onto the pair of seats; and a non electric conductive sealing material () disposed peripherally in relative to the first bonding surface and the second bonding surface in a circumferential pattern, thus the adhesive bonding the first bonding surface and the second bonding surface. Furthermore, height of the second bonding surface and the pair of seats are same height.