Kato together with Japanese teammates (
Hiroki Ishikawa,
Shogo Nonomura,
Yusuke Tanaka, and
Chihiro Yoshioka) competed at the
2013 Summer Universiade in
Kazan where Team Japan won the bronze medal. He won gold in Floor and bronze in Horizontal Bar final. Kato competed at the
2013 World Championships along with
Kōhei Uchimura,
Kenzo Shirai,
Koji Yamamuro,
Kohei Kameyama, and
Kazuhito Tanaka. He competed in the all around final and placed second, nearly two points behind teammate Uchimura. == Personal life ==