US Patent Issued to Sumitomo Electric Industries on May 20 for "Joined body and surface acoustic wave device" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,817, issued on May 20, was assigned to Sumitomo Electric Industries Ltd. (Osaka, Japan).

"Joined body and surface acoustic wave device" was invented by Masato Hasegawa (Osaka, Japan), Yuichiro Yamanaka (Osaka, Japan), Yoshihiro Imagawa (Osaka, Japan) and Hirohisa Saito (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a joined body including a piezoelectric substrate and a polycrystalline spinel substrate provided on one main surface of the piezoelectric substrate, wherein a ratio T1/T2 between T1 and T2 is 0.1 or less, where the T1 represents an average thickness of the piezoelectric substrate and the T2 represents an average...