Masaharu Iwata (岩田匡治, Iwata Masaharu, a.k.a. REZON, born October 26, 1966 in Tokyo, Japan) is a Japanese video game music composer. This great friend of Hitoshi Sakimoto worked on many video games since 1987. His most well-known projects are Ogre Battle, Tactics Ogre, Treasure Hunter G, Final Fantasy Tactics, Baroque, Stella Deus: The Gate of Eternity, and, most recently, Final Fantasy XII. He is now part of Basiscape, a video game music promotion company founded by Hitoshi Sakimoto.