ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,973, issued on April 14, was assigned to Kitagawa Iron Works Co. Ltd. (Hiroshima, Japan).
"Structure and chuck" was invented by Tamio Nishimiya (Fuchu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A structure that is mounted to industrial equipment. This structure includes a jig, a first fixing member and a second fixing member, and a grip part. The industrial equipment has an attachment/detachment region for attaching and detaching the jig. The attachment/detachment region has a first space. The jig has a second space. The first fixing member is accomodatable in the first space. The second fixing member is accomodatable in the second space...