ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,354, issued on July 21, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Acoustic wave device" was invented by Katsuya Daimon (Nagaokakyo, Japan) and Koji Yamamoto (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes a piezoelectric substrate and IDT electrodes each including a first pitch portion with a relatively wide electrode finger pitch and a second pitch portion with a relatively narrow electrode finger pitch. A central region is located on a central side in a direction in which electrode fingers extend, and first and second edge regions are located on both sides of the central regio...