ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,037, issued on April 22, was assigned to NIPPON FIBER Corp. (Abiko, Japan).
"Fiber and manufacturing method of the same" was invented by Hiroshi Fukazawa (Abiko, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fiber and a fiber manufacturing method are provided, in which an integrated coal gasification combined cycle (IGCC) slag constitute a component of raw materials of the fiber. The fiber can be fabricated stably from the melt of the raw materials by the method in which the raw materials are preheated up to 1300deg C. or higher; the raw materials are maintained at the same temperature for certain period of time; subsequently, the temperatur...