ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,802, issued on June 17, was assigned to KOLON INDUSTRIES INC. (Seoul, South Korea).
"Composite material" was invented by Geun Sang Cho (Seoul, South Korea), Choongnyun Paul Kim (Seoul, South Korea) and Kwan Min Choi (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A brake body according to the present disclosure has a coating layer which contains an iron-based amorphous alloy and is formed on a contact surface at which a friction means rubs against the brake body to generate braking force which the brake body is rotated. The coating layer has a low friction coefficient and thus generates less dust during braking. The coating layer ...