In 1974, Kamo became a manager for Nissan Motors. In 1991, he became a manager for All Nippon Airways (later "Yokohama Flügels") and won the 1993 Emperor's Cup. In December 1994, he was named Japan national team manager, replacing Paulo Roberto Falcão. In October 1997, at the 1998 World Cup qualification final round, after 4 games, he was dismissed and assistant coach Takeshi Okada was promoted to be the new manager.