ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,453,891, issued on Oct. 28, was assigned to TEDDY WORKS Co. Ltd. (Tokyo).
"Pull-up/chin-up instrument" was invented by Shota Oguma (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pull-up/chin-up instrument (1) comprises, as its main components, one support column (2) which is maintained in an erected state by being propped up between a ceiling surface (Sc) and a floor surface (Sf) of a house, and a pull-up/chin-up handle (3) fixed to an upper part of the one support column (2). According to this configuration, there can be provided a pull-up/chin-up instrument, which realizes a reduced installation space and a low product price. The pull-up/chin...