In April 2010, he reached his highest ATP doubles ranking of World No.

23 in the junior world singles rankings in January 2000 (and No.

That year, he competed in the boys' singles and doubles at the French Open, Wimbledon and the US Open, reaching the third round in singles and the quarterfinals in doubles at the latter.

At the age of 31, he finally competed at a grand slam event in singles, participating in the qualification rounds at the 2014 Australian Open.

This biographical article relating to Japanese tennis is a stub.