Gorō Azumaya (東屋 五郎, Azumaya Gorō; February 26, 1920– July 8, 2010) was a Japanese mathematician who introduced the notion of Azumaya algebra in 1951. His advisor was Shokichi Iyanaga. At the time of his death he was an emeritus professor at Indiana University.
Source: “Goro Azumaya”, English Wikipedia (CC BY-SA 4.0), excerpt