Tatsuji and Mami Kambayashi
Tatsuji Kambayashi was a professor of mathematical sciences at NIU and had taught there for 20 years when he moved to teach at Tokyo Denki University in 1987 as a mathematics professor. His wife, Mami Kambayashi, received a M.A. degree in computational mathematics from NIU and taught for NIU’s Department of Computer Science and Obirin University in Japan. At Obirin, she was a full-time professor at retirement.