User blog comment:Insistente/Zangetsu - The Impostor/@comment-4207271-20130607085623/@comment-7488132-20130607202534

Nimaiya already confirmed that Hichigo IS his Zanpakuto and that the man we thought was his Zanpakuto (which we've known as Zangetsu) is the representation of his Quincy power. There isn't a third entity (well if you want to count Ichigo's human soul, then yes).