ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,547,203, issued on Feb. 10, was assigned to CHENG UEI PRECISION INDUSTRY Co. LTD. (New Taipei, Taiwan).
"Button structure" was invented by Tsung-Shih Lee (New Taipei, Taiwan) and Yi Hsu (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A button structure includes a circuit board, an elastic element mounted on the circuit board, a hollow base mounted to a top of the elastic element, a directional pad mounted on the base, a metal sheet connected to an inner surface of the directional pad, and a conductive elastic monomer. The conductive elastic monomer is disposed in the directional pad. The conductive elastic monomer is disposed in a mid...