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. Only 450 examples were produced.
The JPM90HAM features a basswood body with a flamed maple top and translucent Petrucci graphic 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.