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:
Apr. 07, 2026
Filed:
Nov. 11, 2022
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Masayuki Ishitaki, Nagaokakyo, JP;
Noriyoshi Ota, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An interdigital transducer electrode that is provided on a piezoelectric film includes a first busbar, a second busbar, multiple first electrode fingers, and multiple second electrode fingers. The first electrode fingers and the second electrode fingers overlap in a region in a direction in which an acoustic wave propagates, and the region includes a central region, a first edge region that is located between the central region and the first busbar, and a second edge region that is located between the central region and the second busbar. An acoustic velocity in the first edge region and the second edge region is lower than an acoustic velocity in the central region. An acoustic velocity in a busbar region is higher than the acoustic velocity in the central region.