ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,905, issued on June 17, was assigned to WISOL Co. LTD. (Gyeonggi-do, South Korea).
"Acoustic resonator" was invented by Hoan Jun Choi (Gyeonggi-do, South Korea), Tah Joon Park (Gyeonggi-do, South Korea), Byung Hun Kim (Gyeonggi-do, South Korea) and Jong Hyeon Park (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an acoustic resonator including a substrate including a first cavity, a first electrode formed above the substrate, a piezoelectric layer formed on one surface of the first electrode, and a second electrode formed on one surface of the piezoelectric layer. Here, the piezoelectric layer includes a longitud...