ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,324, issued on Oct. 20, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Acoustic wave device and multiplexer" was invented by Akira Noguchi (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 Lambda (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, ...