Toei Animation, the Japanese studio behind “Dragon Ball,” “Slam Dunk” and the “One Piece” cartoon franchises, is planning to open a European office in Italy. That may be followed by others in Latin America and India as well as a ramp up of its international production. The group already has a handful of overseas regional offices covering Asia, the Americas and Australasia, and Europe-Middle East and Africa (EMEA). But the group believes that there is more business to be had from the lucrative European market, which the Italy office would service. Speaking at an event within TIFFCOM, the three-day rights…