ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,787, issued on March 24, was assigned to SEIKO EPSON Corp. (Tokyo).

"Ultrasonic sensor and method for manufacturing ultrasonic sensor" was invented by Mio Sasaki (Shiojiri, Japan), Chikara Kojima (Matsumoto, Japan) and Seiji Izuo (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic sensor includes: a substrate having a first surface and a second surface at an opposite side from the first surface, the substrate having an opening penetrating the substrate from the first surface to the second surface; a vibration plate covering a first surface side of the opening; piezoelectric elements provided at a surface of the vibration p...