Quick answer — Toshimitsu Takeuchi worked on Tennis no Ouji-sama: Zenkoku Taikai-hen (Script), The Prince of Tennis II (Script), Dungeon People (Series Composition) and 8 more anime.
Toshimitsu Takeuchi worked on Tennis no Ouji-sama: Zenkoku Taikai-hen (Script), The Prince of Tennis II (Script), Dungeon People (Series Composition), Life With an Ordinary Guy Who Reincarnated Into a Total Fantasy Knockout (Series Composition), NARUTO Spin-Off: Rock Lee & His Ninja Pals (Script), Saint Seiya Soul of Gold (Series Composition), Unbreakable Machine-Doll (Script), Samurai Girls (Script) and 3 more.