In 2001, Komano was selected the Japan U-20 national team for the 2001 World Youth Championship. He played all 3 matches as left side midfielder and side back. In 2004, he was also selected the Japan U-23 national team for 2004 Summer Olympics and played 2 matches. In 2005, he was selected the Japan national team for 2005 East Asian Football Championship. At this tournament, he debuted against China on August 3. He mainly played right side back for Japan. He was selected the Japan for 2006 World Cup. After the 2006 World Cup, he mainly played as left side back under new manager Ivica Osim. He also played at 2007 Asian Cup. However his opportunity to play decreased behind young player Atsuto Uchida (right side back) and Yuto Nagatomo (left side back) under manager Takeshi Okada. However he was selected Japan for 2010 World Cup and played all 4 matches as right side back. He played 78 games and scored 1 goals for Japan until 2013.