The Japanese Finance Ministry’s international bureau chief Atsushi Mimura will become the top currency diplomat effective July 31, the ministry said Friday, replacing Masato Kanda, who has led its battle against a rapidly weakening yen. The next vice finance minister for international affairs, Mimura, 57, joined the ministry in 1989 and has assumed key posts dealing with international affairs, including as director general of the International Bureau since 2021. During his tenure as the top currency diplomat since 2021, Kanda, 59, has led the ministry’s efforts to ensure stability in the curre…