Hisao Yamada
Hisao Yamada was a Japanese computer scientist, known for his influential contributions to theoretical computer science, as well as for the development of Japanese keyboard layouts, a challenging practical problem. From 1972 to 1991, he was professor of the formal languages division at the Department for Information Science at the University of Tokyo.Work
In the field of theoretical computer science, Yamada introduced the notion of real-time computability. As his colleague Aravind Joshi recalls: