ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,495,859, issued on Dec. 16, was assigned to Daimatu inc. (Shizuoka, Japan).
"Footwear" was invented by Jianzhong Qin (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A footwear has a heel, a protruding portion with a core protruding above a topline of the heel, and the protruding portion has first and second mountain portions on both sides and a valley portion between the first mountain portion and the second mountain portion, respectively. The footwear has a first guiding portion formed on the inside of the footwear of the first mountain to guide a heel of the foot into the footwear, and a second guiding portion formed on the inside of t...