Access to the conference must comply with Japanese travel regulations.
Some helpful information is provided by the Ministry of Foreign Affairs at URL<http://www.mofa.go.jp/j_info/visit/visa/index.html>. If you need an official letter of personal invitation for the visa application to attend the conference, please contact the conference secretariat () for assistance.
Please check also the followings.
A guide of Japasnese Visas
List of countries and regions that have visa exemption arrangements with Japan