http://www.topuniversities.com/articles/japan-feels-pressure-increased-competition We rank 300 universities, and 73 of them are in Japan. This happens to be exactly one ahead of China. Korea has 55 of the 300, and no other nation comes near. Japan has seven of the top 20 universities, three more than Hong Kong and four more that China or Korea....
However, Japanese superiority is far less in evidence when it comes to our measures of international achievement. Only 4.5 per cent of Tokyo’s academic staff and 8.3 per cent of its students are from outside Japan. Kyoto has even fewer foreign students and slightly more overseas staff.
By contrast, Hong Kong University of Science and Technology, top in these rankings, has a 50 per cent international faculty and gets 36.9 per cent of it students from outside of Hong Kong. Tokyo would come much higher in these rankings if it got close to matching this achievement.
The same pattern is repeated in our two final measures, university performance in attracting and sending international exchange students. Again, Tokyo and Kyoto emerge as places where international students do not want to go, and whose students would rather stay at home.