In my opinion is less likely that the creator of bitcoin is an american or european. Probably a chinese or japanese. The name Satoshi Nakamoto indicates that as well and we all know that asians are born with IT skills. lol No offense here..
nope
analysts have looked at the details and spotted he is british background. and times zones of activity do not relate to asian daylight hours
the 'satoshi" seems to have emanated from a cryptographic game about anonymity.. this game existed way before bitcoin, which it seems bitcoins creator adopted that pseudonym after the game but before bitcoin due to an interest in that game.
that game was not asian founded either, but the target of the game had the name satoshi.(games target is not the bitcoin creator although both entities decided on same name)
its much like saying if i named myself franky. does that mean im german by default due to to the origins of the name.. nope
its my interest in the name frank that has many wordplay possibilities behind it, as the reason i chose it. one of which relates to germany.
but with all that said.. all indications and rational thought show that satoshi's skill set, dsires, motives and analytical info of what we can establish, the bitcoin creator is NOT john nash.. nor is satoshi japanese.. nor is satoshi craig wright either
because I'm him>Satoshi. 
