(Invited or visiting foreign researchers of OCAMI)
| Name | Affiliation | Period | Host |
| S. Paul Smith | University of Washington, USA | 20.04/01-20.04/03 | KANDA, Ryo |
| Haozhi Zeng | Huazhong University of Science and Technology, China | 20.04/01-20.04/14 | MASUDA, Mikiya |
