ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,432, issued on July 22, was assigned to KYOCERA Corp. (Kyoto, Japan).

"Elastic wave resonator, elastic wave filter, demultiplexer, and communication device" was invented by Naofumi Kasamatsu (Nara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave resonator includes a piezoelectric body and electrode fingers. The electrode fingers are positioned on the piezoelectric body and arrayed in a propagation direction of acoustic waves. The electrode fingers include a first and second electrode finger groups. Electrode fingers are formed between adjacent two of the electrode fingers of the other electrode group. A duty ratio of the electr...