US Patent Issued to MURATA MANUFACTURING on Sept. 1 for "Acoustic wave device" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,178, issued on Sept. 1, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Acoustic wave device" was invented by Takuro Okada (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes a piezoelectric film directly or indirectly provided on a high acoustic-velocity material layer, a dielectric film on the piezoelectric film, and an IDT electrode on the dielectric film. The dielectric film is made of one of silicon oxide, silicon nitride, alumina, and amorphous silicon. When a wavelength determined based on an electrode finger pitch of the IDT electrode is denoted as Lambda, a duty of the IDT electr...