A Japanese music producer and DJ, most famous for his work with vocalist Toshiko Koshijima with which they form the duo known as Capsule.

He is also the full time producer for girl-group Perfume since 2003, and frequently guest produces for other electro and synth artists. He owns his own record label, contemode, which distributes all of his music. His style sits over electro, trance and J-pop, with some experimental tracks produced on ocassion.