ALEXANDRIA, Va., June 9 -- United States Patent no. 12,290,000, issued on April 29, was assigned to TAIYO YUDEN Co. LTD. (Tokyo).

"Acoustic wave device and communication module" was invented by Jyunichi Hamasaki (Tokyo) and Kazushige Hatakeyama (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes a first substrate having first and second surfaces opposite from each other, and side surfaces connecting the first and second surfaces, a first acoustic wave element disposed on the first surface of the first substrate, a second substrate that is provided over the first surface of the first substrate and over the first acoustic wave element and has a first air gap between the secon...