US Patent Issued to NGK INSULATORS on Feb. 25 for "Composite substrate, elastic wave element, and production method for composite substrate" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,237,824, issued on Feb. 25, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).

"Composite substrate, elastic wave element, and production method for composite substrate" was invented by Yuji Hori (Owariasahi, Japan) and Takahiro Yamadera (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composite substrate includes a supporting substrate composed of quartz, a piezoelectric material substrate composed of a material selected from the group consisting of lithium niobate, lithium tantalate and lithium niobate-lithium tantalate; and an interface layer along a bonding interface between the supporting substrate and the piezoelectric material su...