Toei Animation Co., Ltd. is a Japanese animation studio primarily controlled by its namesake Toei Company. It has produced numerous series, including Sally the Witch, GeGeGe no Kitarō, Mazinger Z, Galaxy Express 999, Cutie Honey, Dr. From Wikipedia
Toei Animation deepens One Piece lore by formally naming Hanafuda from Oda’s SBS volumes to emphasize Kuma’s selfless transformation ahead of the Egghead Island climax.