Entry into Japan for 90 days is very easy to obtain a Visa. Participants requiring visas should apply well in advance to Japanese consular offices or diplomatic missions in their countries prior to making final travel arrangements with a travel agent.
For more information about visa,please see
http://www.mofa.go.jp/j_info/visit/visa/index.html
(The Ministry of Foreign affairs,Japan)
If you require a letter advising your registration for the conference,please E-mail : giw@ims.u-tokyo.ac.jp .