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:
Jul. 01, 2014
Filed:
Sep. 27, 2011
Shuichi Mizusawa, Sayama, JP;
Shuichi Mizusawa, Sayama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
The piezoelectric device () stores a piezoelectric vibrating piece () which vibrates whenever an electrical voltage is applied. The piezoelectric device comprises: a package lid () having a first peripheral surface (M) which surrounds a plane surface in a predetermined width; and a package base () comprising a second peripheral surface (M) bonded to the first peripheral surface of the package lid and a recess portion recessed from the second peripheral surface. The first peripheral surface of the package lid and the second peripheral surface of the package base are rough surfaces, respective metal films (AC, AC) are formed on each rough surface, and the package lid and the package base are bonded using a sealing material (LG) formed between the metal films.