He started gymnastics when he was 7. He won a victory in Individual All-Around at the national junior high school tournament, and the second position of Individual All-Around in the Interscholastic tournament when he was a student of the Seifu high school. Later he went to Juntendo University.
In 1997 he was the second of Individual All-Around in the Japan Student Championships and in 1998 he won the first place of Individual All-Around in the NHK Cup. In the 1999 Japan Student Championships, he was the first place of the Individual All-Around and in the Japan Championships, he won the first place of horizontal bar.
Unfortunately he was not qualified for the Sydney Olympics Games. However, at the Athens Olympics Games in 2004, he led the Japan men’s gymnastics team as a captain and the team won its first gold medal for 28 years. He also got himself a bronze medal for horizontal bar. After the Olympic Games, he had several surgical operations. He got over his injuries and made an impressive performance at the NHK Cup in 2008.
Although he narrowly missed a seat at the Beijing Olympic Games, he started his new career as a mental trainer with his experience as a gold medallist. He established his own gymnastics club in 2012. In the same year, he published his first book. Currently he is also working as a commentator for the World Gymnastics competitions and the Japanese Championships.
At the 2012 London Olympic Games, he was the official commentator for the Japan gymnastics team.
From January 2013, he has been appointed coach for the Tokushukai gymnastics club to make Japanese gymnasts win gold medals.