ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,122, issued on Sept. 30, was assigned to ADVICS Co. LTD. (Kariya, Japan).
"Linear actuator" was invented by Hayato Mori (Kariya, Japan) and Yoshihiko Sawagashira (Kariya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A linear actuator includes an electric motor and a linear motion conversion mechanism. The linear motion conversion mechanism includes a screw shaft and a nut screwed into the screw shaft, and is configured such that the nut moves linearly according to a rotation of the screw shaft. The screw shaft is provided with a hole coaxial with an axis of rotation in this linear actuator. Then, the electric motor and the linear motion con...