 Complete the following phrase:  In 2007 he won the Japanese National Championships in mens singles, and 7 international tournaments: the Bahrain Satellite Badminton Tournament, the Banuinvest International Championships, the Osaka International Challenge, the Israel International, the Mauritius International, the Victorian International and the Italian International. At the 2012 Summer Olympics, he reached the quarter-finals of the mens singles, losing to Lin Dan. In 