ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,807, issued on April 29, was assigned to KITAGAWA IRON WORKS Co. LTD. (Fuchu, Japan).
"Structure" was invented by Tamio Nishimiya (Fuchu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A structure, including first and second portions respectively having a serration in which peaks and valleys are continuous, and configured to adjust relative positions of the first and second portions in an adjustment direction by interlocking the peaks and valleys with each other. The adjustment direction is a direction in which the peaks and valleys of the serration are continuous; a fixing portion configured to maintain a defined state. The defined state is a ...