ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,940, issued on April 22, was assigned to SEIKO EPSON Corp. (Japan).
"Vibration device" was invented by Masahiro Fujii (Shiojiri, Japan) and Ryuichi Kurosawa (Hara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vibration device includes a semiconductor substrate having a first surface at which an integrated circuit is provided and a second surface that is a rear surface with respect to the first surface, which is a front surface, a vibration element disposed at the first surface, a lid having a recess that opens toward the first surface and a contact surface that is in contact with the first surface, the lid being bonded to the first surface ...