お茶の水女子大学
Yamazaki was born Naoko Sumino in Matsudo City. She spent two years of her childhood in Sapporo. After graduating from Ochanomizu University Senior High School in 1989, Yamazaki earned a Bachelor of Science degree with a major in Aerospace Engineering from the University of Tokyo in 1993 and a Master of Science degree with a major in Aerospace Engineering in 1996.