ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,076, issued on Sept. 15, was assigned to A&S SYSTEM Co. LTD. (Nara, Japan).

"Anchor bolt" was invented by Isamu Arai (Nara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An anchor bolt (11) including: a taper bolt (21) that is, with a screw thread formed on an outer peripheral surface, inserted in an anchor hole (91); a sleeve (25) that is attached to the taper bolt (21) and includes locking pieces (252) that are, in a state of being disposed in the anchor hole (91), locked to an inner side surface of the anchor hole (91); an annular expansively openable ring (26) attached to the taper bolt (21) at a position closer to a tip side of the tape...