The Japan Society for the Promotion of Science (JSPS) has issued a call for a variety of Invitation Fellowships, for both short-term and long-term collaborations.
The JSPS is the leading research funding agency in Japan, established by the Japanese Government for the purpose of contributing to the advancement of science. Despite the name of the organisation, it covers all research areas, including the humanities and social sciences.
The Fellowships provide the opportunity for researchers based outside of Japan to conduct collaborative research activities with leading research groups at Japanese Universities and Research Institutions for single visits of between 7 days and ten months.
To be eligible, you must be an established researcher with an excellent record of research achievements. Fellowships can be awarded to the same researcher multiple times.
Further details are available from the JSPS website.