Toshihiko Masuda is a japanese animator born in 1960, Japan. He started working on films and movies in 1980, and has been going strong ever since, animating some 70 shows and movies. Some of his more well known animations are Ponyo, Akira, many studio Ghibli films and much more.
He is the director of TMS Studio Entertainment, and has been very successful. Although mostly anime-related, such as One Piece and Naruto, he is also very well known in the DC animated world, praised for his animation and work in Batman Beyond: Return of the Joker and Superman: The Animated series.