ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,711, issued on July 8, was assigned to SEIKO EPSON Corp. (Tokyo).
"Ultrasonic element and ultrasonic device" was invented by Chikara Kojima (Matsumoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic element includes a substrate in which an opening is formed, a vibrating plate provided at the substrate, the vibrating plate including a first surface in contact with the substrate, the vibrating plate blocking the opening, a piezoelectric element provided at a second surface on an opposite side from the first surface of the vibrating plate, a protective substrate facing the second surface and protecting the piezoelectric element, and ...