ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,628, issued on March 18, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Acoustic wave device" was invented by Takashi Yamane (Nagaokakyo, Japan), Sho Nagatomo (Nagaokakyo, Japan) and Tetsuya Kimura (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device further includes a piezoelectric layer and first and second electrodes, first and second divided resonators, and a support substrate. The support substrate includes first and second energy confinement layers. The first energy confinement layer overlaps at least a portion of a first region of the piezoelectric layer. The second energy confinement laye...