Aflac's website lists Masatoshi Koide as President and Representative Director of Aflac Life Insurance Japan.
It notes he first joined in November 1998, returned in December 2008 as vice president, and advanced through SVP, first SVP, EVP, and deputy president before becoming president and COO (later CEO in April 2018), and that he graduated from Tokyo University and Cornell Law School and is a member of the New York State Bar.