US Patent Issued to TAIYO YUDEN on March 18 for "Filter and multiplexer" (Japanese Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,602, issued on March 18, was assigned to TAIYO YUDEN Co. LTD. (Tokyo).

"Filter and multiplexer" was invented by Mamoru Ishida (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filter includes a series resonator including a first piezoelectric layer and first electrodes, and a parallel resonator including a second piezoelectric layer and second electrodes. Each of the first and second piezoelectric layers is a monocrystalline lithium niobate layers, has an X-axis orientation in a planar direction, and has a thickness direction in a direction obtained by a 105deg rotation of a +Z-axis orientation toward a +Y-axis orientation. The first electrod...