 In 1998, he co-founded Bones with fellow Sunrise staff members Masahiko Minami and Hiroshi Ōsaka.He has recently provided the character designs for "Wolf's Rain" and "Tenpō Ibun Ayakashi Ayashi", and the key animation to series such as "Eureka Seven", "Witch Hunter Robin", "Sword of the Stranger", "Fullmetal Alchemist", "Ouran High School Host Club" and "Michiko to Hatchin".On March 11, 2010, Anime Expo announced Kawamoto will be an official Guest of Honor at the July Anime Expo at the Los Angeles Convention Center.