US Patent Issued to MURATA MANUFACTURING on March 24 for "Acoustic wave filter" (Japanese Inventor)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,169, issued on March 24, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Acoustic wave filter" was invented by Norikazu Tamaoki (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave filter 1 includes a filter circuit 10 and an additional circuit 20. The additional circuit 20 includes a plurality of IDTs 31, 32 and a reflector 41. A first excitation portion 51x of the IDT 31 is placed adjacent to the reflector 41 and, among a plurality of electrode fingers 35 included in the outermost IDT 31, includes electrode fingers numbered in ((N/2)+1) on condition that a total number N of the electrode fingers includ...