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:
May. 20, 2014
Filed:
Jun. 20, 2011
Mitoshi Umeki, Saitama, JP;
Ryoichi Ichikawa, Saitama, JP;
Yoshiaki Amano, Saitama, JP;
Kenji Kamezawa, Saitama, JP;
Kenichi Kikuchi, Saitama, JP;
Noritsugu Matsukura, Saitama, JP;
Mitoshi Umeki, Saitama, JP;
Ryoichi Ichikawa, Saitama, JP;
Yoshiaki Amano, Saitama, JP;
Kenji Kamezawa, Saitama, JP;
Kenichi Kikuchi, Saitama, JP;
Noritsugu Matsukura, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
An exemplary piezoelectric vibrating device includes a piezoelectric vibrating piece that vibrates when electrically energized. A first package plate has a main recess in which the piezoelectric vibrating piece is placed, and a peripheral surface surrounding the recess. A second package plate is bonded to the peripheral surface of the first package plate in airtight manner. A band of adhesive bonds the first package plate to the second package plate. The adhesive band surrounds the peripheral surface. Between the adhesive and the main recess is a band of metal film. The band of metal film prevents gas, generated from the adhesive, from flowing into the recess. The band of metal film surrounds the peripheral surface and is disposed inboard of the band of adhesive.