Formerly called Toei Douga until 1998. Toei Animation is theAnime department of the Toei Company[1] and one of the oldest (it can trace its roots back to 1948) and largest animation companies. Toei is responsible for producing a large number of popular andEssential Anime, includingMazinger Z,Devilman,Fist of the North Star,Dragon Ball,Sailor Moon,Digimon, andOne Piece. In other words, it was responsible for defining theHumongous Mecha,Space Opera,Shonen, andMagical Girl genres as we know them today.
When the studio started in 1956, the studio didmostly Disney like art films, but based around native Japanese artwork and some stuff forRankin Bass. Some people likeIsao Takahata (the director ofGrave of the Fireflies),Yoichi Kotabe (mostly known for doing most of Nintendo's 2D artwork),Yasuo Otsuka andHayao Miyazaki worked at Toei at this time. However due tothe staff members wanting more money and how the studio was going, many staff members left for other studios.
They've also done abitofworkonAmericancartoons, but those are few and far between after the 1980s ended. They, along withTMS,Sunrise andSony also had a hand inAnimax.
See also:Sei Young andDai Won, two Korean studios that worked with Toei in the late 70's to mid 80's.