ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,212, issued on May 13, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).
"XBAR resonators with non-rectangular diaphragms" was invented by Ventsislav Yantchev (Sofia, Bulgaria), Patrick Turner (Portola Valley, Calif.), Viktor Plesski (Gorgier, Switzerland), Julius Koskela (Helsinki) and Robert B. Hammond (Rockville, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Acoustic resonator devices, filter devices, and methods of fabrication are disclosed. An acoustic resonator includes a substrate having a surface and a single-crystal piezoelectric plate having front and back surfaces. The back surface is attached to the surface of the s...