ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,165, issued on March 24, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Acoustic wave device" was invented by Tetsuya Kimura (Nagaokakyo, Japan), Yutaka Kishimoto (Nagaokakyo, Japan) and Takeshi Nakao (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes a piezoelectric board including a piezoelectric layer with a first principal surface and a second principal surface opposed to each other, an intermediate layer on the first principal surface or the second principal surface of the piezoelectric layer, and a functional electrode on the intermediate layer. A material of the intermediate lay...