User blog comment:Skitzo1/So Ichigo is like a hybrid perfect being?/@comment-5398287-20130505164657/@comment-1904799-20130507035312

His Hollow abilities were not inherent; Ichigo gained them after his training in the Shattered Shaft. What influence Masaki's inner Hollow has had on him is not yet known, but it did not give him his Hollow abilities, as those has explicitly been shown to have been the results of Urahara's training methods exclusively. This additionally means he can't just "restore" his inner Hollow willy-nilly; he would have to undergo the same Hollowfication process he initially went through, or something similar to it.