Bitcoin is in many main languages but not Japanese. Why would the guy who created it not make it in his own language? Don't you find it suspicious MtGox is in Japan?
Also the project really isn't a success. A lot of progress still has to be made. Security is still an issue along with sites still growing. Anyone ever even talk to him? I'm not saying he isn't real I'm just putting this out there.
I just got more curious about the OP. What happened to him? It was last active in 2013. I am really thinking if the OP has a lot of bitcoin, that it was like he lost the keys. or forget it and still find it. Or he is really rich right now because of the price. But to answer his question, I think yes because he is the creator of Bitcoin, but if not, I am sure that there is still someone who made Bitcoin. Back to my original question, I'm curious how much bitcoin this person currently has or if he has already sold it.