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. 22, 2026
Filed:
Jul. 11, 2024
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Katsuya Daimon, Nagaokakyo, JP;
Akihiro Iyama, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a piezoelectric substrate including a support that includes a support substrate, and a piezoelectric layer located on the support, a functional electrode located on the piezoelectric layer and including at least one pair of electrode fingers, and a dielectric film located on the piezoelectric layer to cover the at least one pair of electrode fingers. An acoustic reflection portion is located at a position overlapping at least a portion of the functional electrode in plan view. Assuming a thickness of the piezoelectric layer is d and a center-to-center distance between the electrode fingers adjacent to each other is p, d/p is about 0.5 or less. Angles of corners θ1, θ2, θ3, and θ4 are such that at least one of θ1≠θ3 or θ2≠θ4 is satisfied.