ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,194, issued on July 8, was assigned to FUTABA INDUSTRIAL Co. LTD. (Aichi, Japan).
"Method of manufacturing exhaust pipe" was invented by Shigeru Ogawa (Aichi, Japan), Riku Ono (Aichi, Japan) and Akira Sakai (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing an exhaust pipe includes inserting a cover member into an approximately circular opening provided at a first end of a first exhaust pipe. An inner circumferential portion of the cover member has a ring shape with a central axis. When the cover member is inserted into the opening, its outer circumferential surface faces a first inner circumferential surface of th...