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:
Mar. 31, 2026
Filed:
May. 10, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Minefumi Ouchi, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a piezoelectric layer including first and second main surfaces facing each other, an IDT electrode on the first main surface and including first and second busbars facing each other and electrode fingers, a first conductor on the second main surface and facing the first busbar with the piezoelectric layer therebetween, and a support on the second main surface and supporting the piezoelectric layer. A cavity that opens towards the piezoelectric layer is provided in the support, and the first conductor is positioned inside the cavity. An electric potential of the first conductor is different from an electric potential to which the first busbar is connected.