ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,464,290, issued on Nov. 4, was assigned to Finewell Co. Ltd. (Osaka, Japan).
"Vibrator and hearing device" was invented by Hiroshi Hosoi (Osaka, Japan) and Katsushi Ueno (Yamagata, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vibrator includes a yoke, a coil bobbin, a coil wound around the coil bobbin, a magnet, a damper, a frame, and a case housing the yoke, the coil bobbin, the coil, the magnet, the damper, and the frame. An outer edge portion of the damper is fixed to the case. The bottom face of an inner edge portion of the damper makes contact with the top end of the circumferential wall portion of the yoke. The frame is swaged to be fixed...