
Quick answer — Ryousuke Takeuchi worked on Moriarty the Patriot Part 2 (Original Story), Moriarty the Patriot (Original Story), Moriarty the Patriot OVA (Original Story).
Ryousuke Takeuchi worked on Moriarty the Patriot Part 2 (Original Story), Moriarty the Patriot (Original Story), Moriarty the Patriot OVA (Original Story).