ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,540, issued on March 24.

"Gear reduction unit with anti-backlash mechanism" was invented by Randy Linsalato (Irwindale, Calif.) and Hiroshi Hoya (Irwindale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gear reduction assembly for industrial robotics arms with an anti-backlash mechanism for precise positioning of the robotic arm. The gear reduction assembly includes two transfer gears and two internal gears. The two internal gears include a fixed gear that is fixedly coupled to a gear housing and an output gear that is coupled to an output shaft. The gear reduction assembly further includes a drive plate that is integral to the input shaf...