Hiroyuki Ito

Hiroyuki Itō (伊藤 裕之, Itō Hiroyuki) has been a developer for the Final Fantasy series since the first Final Fantasy as a debugger for the games, it was not until Final Fantasy IV that he was involved in major work. Ito is the inventor of some of the Final Fantasy series' exclusive battle systems such as Active Time Battle System (ATB), the Ability Points System, the Job System of Final Fantasy V (based on Hiromichi Tanaka's Job System from III) and Final Fantasy Tactics (based on Yasumi Matsuno's Class System from the Ogre Battle series), the Espers of Final Fantasy VI, the Junctioning of Final Fantasy VIII, and the Active Dimension Battle (ADB) of Final Fantasy XII.

Trivia

 * Hiroyuki Itō makes a cameo appearance as an enemy in Final Fantasy IV. "He" can be found in the Developer's Room.
 * Hiroyuki Itō has directed every last main series Final Fantasy released in a console generation since the SNES. He directed Final Fantasy VI, Final Fantasy IX, and Final Fantasy XII.
 * Hiroyuki Ioō has worked on all the numbered installments from Final Fantasy I to IX, the only exception being VII as he was busy with Tactics during that time.

Interviews
 Development of Final Fantasy XII  EYIzjBbO2FQ