ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,469,655, issued on Nov. 11, was assigned to CHICONY ELECTRONICS Co. LTD. (New Taipei, Taiwan).
"Key structure" was invented by Mitsuo Horiuchi (New Taipei, Taiwan) and Chia-Hsin Chen (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A key structure includes a base plate, a keycap, a connecting assembly, a protrusion and a limiting member. The connecting assembly includes a first frame and a second frame pivotally connected to each other. Two opposite ends of the first frame are movably connected to the base plate and the keycap, respectively, and two opposite ends of the second frame are movably connected to the base plate and the keyca...