ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,149, issued on Aug. 19, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Acoustic wave device" was invented by Masashi Omura (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes a piezoelectric member, a first and second electrodes on first and second main surfaces of the piezoelectric member, an acoustic reflection section including an air gap, and an additional mass film in at least one of areas on the first and second electrodes and an area outward of the first or second electrodes. A region where at least one of the first electrode and the additional mass film overlaps the second electr...