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:
Sep. 13, 2011
Filed:
Aug. 31, 2007
Masanori Ueda, Kawasaki, JP;
Masafumi Iwaki, Kawasaki, JP;
Tokihiro Nishihara, Kawasaki, JP;
Shinji Taniguchi, Kawasaki, JP;
Go Endo, Yokohama, JP;
Yasuo Ebata, Yokohama, JP;
Masanori Ueda, Kawasaki, JP;
Masafumi Iwaki, Kawasaki, JP;
Tokihiro Nishihara, Kawasaki, JP;
Shinji Taniguchi, Kawasaki, JP;
Go Endo, Yokohama, JP;
Yasuo Ebata, Yokohama, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
An acoustic wave device includes a first resonator having a piezoelectric substance sandwiched between a pair of electrodes in a direction of an c-axis orientation or a polarization axis, and a second resonator that is connected in series and has another piezoelectric substance sandwiched another pair of electrodes so that one of the another pair of electrodes located in the direction of the c-axis orientation or the polarization axis is at a potential equal to that of one of the pair of electrodes of the first resonator in the direction of the c-axis orientation or the polarization axis.