ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,851, issued on March 3, was assigned to NIHON DEMPA KOGYO Co. LTD. (Tokyo).

"Base for piezoelectric device and piezoelectric device" was invented by Shuichi Mizusawa (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A base for a piezoelectric device includes: a first substrate, mounting pads, a contact hole and a contact hole wiring, a first metal film, a second substrate, a second metal film, a routing wiring, a castellation, and an external mounting terminal. The second substrate is made of a material identical to the material of the first substrate. The second substrate is bonded to the first substrate by intermetallic bonding. The s...