2003 saw the anime Detective Conan: Conan and Heiji and the Vanished Boy OAV release based on the manga Detective Conan by Aoyama Goushou released in 1994. Taiichiro Yamamoto was the director. Taiichiro Yamamoto who had filmed Detective Conan: Conan vs Kid vs YAIBA OAV was invited director of Detective Conan: Conan and Heiji and the Vanished Boy. Like the manga, the anime is filmed as a mystery.

The Detective Conan: 16 Suspects OAV started being shot in 2002. The anime was based on the manga Detective Conan, Taiichiro Yamamoto was the director. Taiichiro Yamamoto who had filmed Detective Conan: The Private Eyes' Requiem movie, Detective Conan: Jolly Roger in the Deep Azure movie and Detective Conan: Full Score of Fear movie was invited director of Detective Conan: 16 Suspects. Mai Kuraki wrote music for Detective Conan: 16 Suspects OAV. Like the manga, the anime is filmed as a mystery.

2001 saw the anime Detective Conan: Conan vs Kid vs YAIBA OAV release based on the manga Detective Conan by Aoyama Goushou released in 1994. Taiichiro Yamamoto was the director. Taiichiro Yamamoto who had filmed Detective Conan: Strategy Above the Depths movie, Detective Conan: The Private Eyes' Requiem movie and Detective Conan: Jolly Roger in the Deep Azure movie was invited director of Detective Conan: Conan vs Kid vs YAIBA. The Detective Conan: Conan vs Kid vs YAIBA OAV soundtrack belongs to Katsuo Ono also known for music to Detective Conan: Captured In Her Eyes movie, Detective Conan: The Phantom of Baker Street movie and Detective Conan: Crossroad in the Ancient Capital movie. It's a mystery series with adventure, comedy, drama elements.

The Detective Conan: Full Score of Fear movie scenario was based on the manga Detective Conan by Aoyama Goushou, Taiichiro Yamamoto was the director. Katsuo Ono wrote a soundtrack for the anime. The anime is filmed as a action.

2007 saw the anime Detective Conan: Jolly Roger in the Deep Azure movie release based on the manga Detective Conan by Aoyama Goushou released in 1994. Taiichiro Yamamoto was the director. Katsuo Ono wrote music for Detective Conan: Jolly Roger in the Deep Azure movie.