ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,023, issued on Oct. 21, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Extension-retraction device" was invented by Yoshitaka Hada (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An extension-retraction device in which: each of an outer strip member and an inner strip member includes one or more engaging portions; a tubular inner guide member and a cylindrical member are included, the inner guide member including a groove portion, and the cylindrical member being made up in a cylindrical shape so as to conform to an outer peripheral surface of the inner guide member and helically guiding each of the inner strip member and the ou...