ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,542, issued on Sept. 9, was assigned to HS HYOSUNG ADVANCED MATERIALS Corp. (Seoul, South Korea).

"Polyacrylonitrile-based stabilized fiber, carbon fiber, and manufacturing method therefor" was invented by Hee Rok Jung (Gyeonggi-do, South Korea), Deuk-jin Lee (Seoul, South Korea) and Cheol Kim (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a carbon fiber, which has excellent tensile strength by having fewer internal defects while being a thick fiber having a single-fiber diameter of 6.0 micro metre or greater, and can provide the effects of reducing costs while increasing production amount to...