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. 07, 2021
Filed:
Jul. 06, 2020
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Ryo Nakagawa, Nagaokakyo, JP;
Hideki Iwamoto, Nagaokakyo, JP;
Tsutomu Takai, Nagaokakyo, JP;
Yuichi Takamine, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
In an acoustic wave device, an antenna end resonator electrically closest to a first terminal is a first acoustic wave resonator. In each of the first acoustic wave resonator and a second acoustic wave resonator, a thickness of a piezoelectric layer is equal to or less than about 3.5λ. A cut angle of the piezoelectric layer of the first acoustic wave resonator is within a range of θ±4°. The cut angle of the piezoelectric layer of the second acoustic wave resonator has a larger difference from θ(°) than the cut angle of the piezoelectric layer of the first acoustic wave resonator.