Quick answer — Nobuko Mizuta worked on Eureka Seven (Color Design), Darker than Black (Color Design), Wolf's Rain OVA (Color Design) and 11 more anime.
Nobuko Mizuta worked on Eureka Seven (Color Design), Darker than Black (Color Design), Wolf's Rain OVA (Color Design), Wolf's Rain (Color Design), A Letter to Momo (Color Design), cocoon – One Summer of Girlhood (Color Design), Towanoquon: Eternal Quon (Color Design), Yuyushiki (Color Design) and 6 more.