ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,429, issued on Sept. 15, was assigned to KINPO ELECTRONICS INC. (New Taipei City, Taiwan).
"Curved-surface button structure" was invented by Tsung-Ping Tien (New Taipei City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A curved-surface button structure having a housing, a button arranged in the housing, a button assembly and a positioning sleeve. The housing has a through hole, a curved surface and an internal surface. The button has a driven part. The button assembly has a pressing plate, an installation seat and an extending column. The installation seat is arranged on the internal surface. The pressing plate is connected to the install...