ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,521, issued on Oct. 7, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Acoustic wave device and composite filter device" was invented by Ryo Nakagawa (Nagaokakyo, Japan), Haruki Kyouya (Nagaokakyo, Japan) and Hiroshi Shimizu (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes an IDT electrode laminated on a piezoelectric substrate and defining a first resonator, and an IDT electrode laminated on the piezoelectric substrate and defining a second resonator. The first and second resonators are connected in parallel or in series. The IDT electrode of the first resonator includes an electrode l...