Jem

Ibanez Jem is an electric guitar manufactured by Ibanez and first produced in 1987. The guitar's most notable user is its co-designer, Steve Vai. As of 2006, there are five sub-models of the Ibanez Jem: the Jem7, Jem77, Jem777, Jem555 and the Universe. Although the Ibanez Jem series is a signature series guitar, Ibanez mass-produces several of the guitar's sub-models.   Wikipedia