Yoshihiro Akiyama Martial artist
Chu Seong-hoon (Hangul: 추성훈, Hanja: 秋成勳), also known as Yoshihiro Akiyama (秋山 成勲, Akiyama Yoshihiro), is a South Korean-Japanese mixed martial artist and judoka. Akiyama won the gold medal at the 2001 Asian Championships for South Korea, and for Japan at the 2002 Asian Games. A fourth-generation Japanese of Korean descent, he acquired Japanese nationality in 2001. He is the former K-1 HERO's Light Heavyweight Grand Prix Tournament Champion.
