ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,156, issued on Sept. 8, was assigned to NGK INSULATORS Ltd. (Nagoya-City, Japan).
"Composite substrate and method of producing composite substrate" was invented by Yuji Hori (Owariasahi-City, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composite substrate includes in this order: a support substrate; an intermediate layer; and a piezoelectric layer, wherein the intermediate layer contains bubbles."
The patent was filed on Aug. 8, 2022, under Application No. 17/818,074.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fse...