ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,527,222, issued on Jan. 13, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Ultrasonic sensor" was invented by Tomoaki Matsushita (Nagaokakyo, Japan) and Kazuhiro Ebara (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic sensor includes a piezoelectric body including first and second surfaces. First and second electrodes are respectively provided on the first and second surfaces. The second electrode is opposed to the first electrode with the piezoelectric body interposed therebetween. A third electrode is provided on the second surface. The third electrode is spaced apart from the second electrode. The third e...