ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,864, issued on June 17, was assigned to Surpass Industry Co. Ltd. (Saitama, Japan).
"Joint structure, joint unit and assembly method of joint unit" was invented by Hiroshi Imai (Saitama, Japan) and Kazuki Hirai (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a joint structure comprising a main body, a tubular part that is formed in a tubular shape to protrude from the main body along an axis and holds an outer peripheral surface of the resin-made tube, and a protrusion that is formed in a shaft shape to protrude from the main body along the axis and forms, between the protrusion and the tubular part, an insertion groove in...