ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,086, issued on Nov. 25, was assigned to FANUC Corp. (Yamanashi, Japan).
"Linear motion mechanism and SCARA robot" was invented by Youhei Yamaguchi (Yamanashi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A linear motion mechanism includes: a shaft extending along a prescribed axis; a structural member provided with a cavity through which the shaft extends; and a spline nut and a ball screw nut that support the shaft so as to be rotatable about the axis and so as to be movable in a direction of the axis, respectively, with respect to the structural member. The spline nut and the ball screw nut are detachably attached to the structural member ...