(English) From Sept. 18 to Oct. 1, 2022 Prof. Minami visited collaborator Dr. Larrieu at LAAS, observed facilities, discussed with researchers and gave a lecture. Then, he visited UTC and gave intensive lectures for 2 days. He also made a promotion video on the student exchange between UTC and UT and it is streaming on YouTube. ( )  He visited Dr. Descroix and Dr. Parrini at IPGG and Institut Curie, observed facilities and gave an invited lecture. He also visited University of Bordeaux, discussed with Dr. Oda and Dr. Chevalier, and gave an invited lecture at ISVV.