The following are the names of the top 20 universities in Japan that I compiled for you:

1. University of Tokyo

2. Kyoto University

3. Osaka University

4. tokyo institute of technology

5. Waseda University

6. Sophia University

7. hitotsubashi university

8. University of Tsukuba

9. Hokkaido University

10. Kyushu University

1 1. Nagoya University

12 Hiroshima University

13. Kobe University

14. Yokohama National University

15. Nagasaki University

16. Chiba University

17. tokyo university of foreign studies

18. osaka city university

19. Kyoto University of Arts and Crafts

20. Tokyo University of Science