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:
Nov. 10, 2015
Filed:
Jul. 24, 2012
Shinji Taniguchi, Tokyo, JP;
Tokihiro Nishihara, Tokyo, JP;
Masanori Ueda, Tokyo, JP;
Tsuyoshi Yokoyama, Tokyo, JP;
Takeshi Sakashita, Tokyo, JP;
Shinji Taniguchi, Tokyo, JP;
Tokihiro Nishihara, Tokyo, JP;
Masanori Ueda, Tokyo, JP;
Tsuyoshi Yokoyama, Tokyo, JP;
Takeshi Sakashita, Tokyo, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
An acoustic wave device includes: a substrate; a lower electrode formed on the substrate; at least two piezoelectric films formed on the lower electrode; an insulating film located between the at least two piezoelectric films; and an upper electrode formed on the at least two piezoelectric films, wherein an outer periphery of an uppermost piezoelectric film out of the at least two piezoelectric films in a region in which the lower electrode and the upper electrode face each other is positioned further in than an outer periphery of the upper electrode.