PhD's in Japan?

<p>Greetings!
I've always loved Japanese culture and I've recently taken up learning Japanese in my spare time, and a question popped up. Is it possible to get a PhD in Computer Science, say, in Artificial Intelligence, in Japan after getting your bachelors in the states, and if so, are there certain requirements? I'm sure there is a certain level of Japanese language comprehension required even in English language classes, but I'm not sure what else would be needed.
Also, are there certain detriments to getting a graduate degree in a foreign country, or benefits, for that matter? I'm not altogether sure whether not not I would want to stay yet, so would it limit where I could work in the states?
Sorry for the number of questions, and I appreciate any responses.</p>

<p>Well, I’ve researched this a bit since I wanted to do so myself, but I will say that you should probably stick with the States. Not only will you find better work in the States if you get a PhD from a U.S. school, you will get a much better stipend for your work. At least from what I’ve seen from my research, most departments in Japan expect you to get an MA/MS before continuing on to your PhD. And those aren’t funded very well. Also, PhD stipends are very small. Competition is probably a whole lot more feasible than American universities, but that’s for a very good reason.</p>