ALEXANDRIA, Va., May 5 -- United States Patent no. 12,617,626, issued on May 5, was assigned to S.E.A Co. LTD (Gyeongsangbuk-do, South Korea).

"Roller structure including bearing structure at one side for transporting product" was invented by Kihong Ryu (Gyeongsangbuk-do, South Korea) and Jaeho Shin (Gyeongsangbuk-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a roller structure used in mechanical conveying systems. A roller structure includes a roller bar that rotates for transporting a product arranged thereon for transporting the product in one direction, a block fixing part coupled to the roller bar to fix the roller bar on one end part (a first end part) ...