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. 01, 2026
Filed:
Jun. 23, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Sho Nagatomo, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a piezoelectric substrate including a support substrate and a piezoelectric layer, and an IDT electrode. In the IDT electrode, a second gap region includes gap portions on an extension line in an electrode finger extending direction. A through-hole is provided in a portion of the piezoelectric layer overlapping a gap portion in plan view. A recessed portion is provided in a portion of the support substrate overlapping the through-hole in plan view. The recessed portion extends farther toward a center of the IDT electrode in the electrode finger extending direction than the portion including the through-hole. One or more layers in the piezoelectric substrate are constraining layers that constrain the piezoelectric layer at a portion overlapping an intersection region in plan view, and the piezoelectric layer includes a protruding portion that protrudes farther in the electrode finger extending direction than at least one constraining layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile