Currently, financial assistance is available from the Regional Council of Burgundy Franche-Comté, for the duration of your period of study / internship outside France. All students enrolled at the University of Burgundy, whatever their nationality, are eligible for this monthly assistance, which they apply for during the semester prior to the exchange. More details (in French) are available on the Regional Council website.
Erasmus funding is available for students travelling from UB to study in other EU countries (Helsinki, though not Tokyo). Applications are made through the university during the semester prior to the exchange. More details (in French) about Erasmus and other funding can be found on the university website.