Osamu Ishii graduated from Hitotsubashi University in 1979. Prior to joining Aflac as vice president in April 2008, he worked for Dai-ichi Kangyo Bank and also served as vice president and president at DKB Financial Products Inc. as well as general manager at Mizuho Corporate Bank. He was promoted to senior vice president of Human Resources, General Affairs and the Executive Assistant Office in January 2013. He assumed his current position in January 2015. He earned a master’s degree in business administration from Massachusetts Institute of Technology in 1995.