The JPM90HAM is a JPM series solid body guitar model introduced by Ibanez in 1998. It is a signature model of American guitarist John Petrucci and was a limited edition model made in honor of the 90th anniversary of Ibanez's parent company, Hoshino Gakki. It was built by FujiGen and only 450 examples were produced.
The JPM90HAM features a flamed maple top with a translucent Petrucci graphic on a basswood body bolted to a maple neck with a 24-fret ebony fingerboard with offset dot position markers. Components include dual DiMarzio humbucking pickups and a Lo-Pro Edgedouble locking tremolo with a locking nut.