Numata is best known for his strongly distorted character style and peculiar sense for timing, often being named as an animator of the Kanada school. He tends to work together with character designer Kyuuta Sakai, whose disproportionated character designs particularly fit his style, employing often large teardrops, which brought him to spotlight in Higurashi no Naku Koro ni. The duo also participated together in several other shows, such as Ichigo Mashimaro and Strawberry Panic.
Every now and then works under one of his many pseudonyms.
