Quick answer — Keiichirou Kawaguchi worked on Fate/kaleid liner Prisma☆Illya: Vow in the Snow (Storyboard), SKET Dance (Director), Minami-ke Tadaima (Director) and 27 more anime.
Keiichirou Kawaguchi worked on Fate/kaleid liner Prisma☆Illya: Vow in the Snow (Storyboard), SKET Dance (Director), Minami-ke Tadaima (Director), Yu-Gi-Oh! (Animation Director), Hayate the Combat Butler (Director), Mermaid Melody: Pichi Pichi Pitch Pure (Storyboard), Minami-ke: Omatase (Director), Hunter x Hunter: The Last Mission (Director) and 22 more.