▎ 摘　　要

NOVELTY - The method involves providing sample within a treatment basin. The sample is treated using process gas such as hydrogen and carbon. The graphene is grown on surfaces of the floating sample in air. A catalyst layer made of transition metal or metal carbide is formed on surface of the sample. USE - Manufacturing method of graphene (claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) graphene manufacturing device; and (2) graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of the graphene manufacturing device. (Drawing includes non-English language text)