Answer
Kido's regular badminton doubles partner was an Indonesian, Taufik Hidayat. They won several titles together, including the 2006 Asian Games and the 2007 World Championships. Hidayat is a former world number one, and Kido was ranked third in the world in 2008. They were a formidable doubles team, and their partnership was a major factor in Indonesia's dominance of the sport at the time.