US Patent Issued to Sanan Japan Technology on Aug. 25 for "Acoustic wave device and method for producing same" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,434, issued on Aug. 25, was assigned to Sanan Japan Technology Corp. (Tokyo).

"Acoustic wave device and method for producing same" was invented by Subei Shun (Tokyo) and Shinichi Shioi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing an acoustic wave device includes polishing a sapphire substrate, placing a magnesium oxide substrate or magnesium oxide powder on a main surface of the sapphire substrate, forming a polycrystalline spinel layer by heat treatment, removing the magnesium oxide from spinel layer and polishing the polycrystalline spinel layer, and forming a piezoelectric substrate on the polycrystalline spine...