US Patent Issued to Murata Manufacturing on Dec. 2 for "Transversely-excited film bulk acoustic resonator with multi-mark, multi-pitch interdigital transducer" (Canadian, American, Finnish Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,421, issued on Dec. 2, was assigned to Murata Manufacturing Co. Ltd. (Nagaokakyo, Japan).

"Transversely-excited film bulk acoustic resonator with multi-mark, multi-pitch interdigital transducer" was invented by Greg Dyer (Santa Barbara, Calif.), Bryant Garcia (Mississauga, Canada) and Julius Koskela (Helsinki).

According to the abstract* released by the U.S. Patent & Trademark Office: "Acoustic resonator devices and acoustic filter devices. An acoustic resonator includes a piezoelectric plate having front and back surfaces. The back surface is attached to a surface of a substrate. The piezoelectric plate comprises a diaphragm spanning a cavity. A conductor pattern is formed on the...