This is a Korean name; the family name is Ryu.
Ryu Seung-Min (born August 5, 1982) is a Korean table tennis player who won the gold medal at the 2004 Summer Olympics in the men's singles competition. His opponent was Wang Hao, a top-seeded player from Chinese national team. Along the way, he defeated 1992 Olympic champion Jan-Ove Waldner.
Ryu is currently ranked seventh in the world. [1]