ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,320, issued on Oct. 20, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).
"Piezoelectric resonator" was invented by Toshio Nishimura (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric resonator that includes: a piezoelectric member and an excitation electrode that overlap with each other in a thickness direction, the piezoelectric resonator has a high acoustic velocity region and a low acoustic velocity region, in a plan view in the thickness direction, the high acoustic velocity region overlaps a center portion of the excitation electrode, and the low acoustic velocity region overlaps an end portion o...