This article reads as if it was written by an Immersial lawyer, to help its pending case against Sony.  

 "Some of the popular products carrying Immersion technology include the force feedback controllers for Xbox, and most consumer grade force-feedback joysticks." 

 This company sued Microsoft and everyone with a rumble pack over an old patent, and since Microsoft settled out of court, it's now "Immersion technology", despite then having nothing to do with the development.