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:
Oct. 20, 2026
Filed:
Aug. 23, 2024
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Akira Noguchi, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A filter includes acoustic wave resonators connected to a path connecting terminals. A substrate includes a laminated structure of a piezoelectric film, and low and high acoustic velocity films. An electrode finger wavelength of the IDT electrode is λ (m), a film thickness of the piezoelectric film is t1 (m), a film thickness of electrode fingers is t2 (m), t1/A is a film thickness-wavelength ratio A of the piezoelectric film, t2/A is a film thickness-wavelength ratio B of the plurality of electrode fingers, a density of the piezoelectric film is x (g/cm) and a density of the IDT electrode is y (g/cm), and (A/x+B/y) is a mass coefficient M of an acoustic wave resonator which is connected closest to the terminal and equal to or more than about 0.95×0.054 and equal to or less than about 1.05×0.054.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile