日野晃博
"Professor Layton and the Diabolical Box" was released in Japan during November 2007, nine months after the release of "Curious Village". Following this, Nintendo began to localize the series internationally; "Curious Village" was released in 2008, though Nintendo had not officially announced the localization of "Diabolical Box". The manual of "Curious Village", however, implied an eventual release of the second game while mentioning a feature in which passwords are exchanged between "Curious Village" and "Diabolical Box" for bonuses in both games. In March 2009, at the Game Developers Conference, Akihiro Hino listed "Professor Layton and the Diabolical Box" as an English title for the game. At an interview following the conference, he confirmed that the name was the official English title and that the localization was currently being worked on, which he hoped to be finished in about six months.