
Quick answer — Akiharu Ishii worked on Blood+ (Character Design), Tennis no Ouji-sama: Zenkoku Taikai-hen Final (Character Design), Tennis no Ouji-sama: Zenkoku Taikai-hen (Character Design) and 8 more anime.
Akiharu Ishii worked on Blood+ (Character Design), Tennis no Ouji-sama: Zenkoku Taikai-hen Final (Character Design), Tennis no Ouji-sama: Zenkoku Taikai-hen (Character Design), Tennis no Ouji-sama: Zenkoku Taikai-hen Semifinal (Character Design), The Prince of Tennis (Character Design), The Prince of Tennis II (Character Design), Noblesse: Awakening (Chief Animation Director), Love Hina Again (Animation Director) and 3 more.