ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,820, issued on Dec. 30, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Filter device and multiplexer" was invented by Toshiaki Takata (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A filter device includes a series arm connecting input and output terminals. Parallel arms branch from the series arm to a ground terminal. The parallel arms include first and second parallel arms branching from portions of the series arm. The first and second parallel arm resonators are respectively provided in or on the first and second parallel arms. The parallel arm resonators each include an IDT electrode including electrode fingers...