Akira Hayami (速水融; 1929–2019) was an emeritus professor of Keio University and the first to introduce historical demography in Japan. Professor Hayami is also famous for coining the concept called "Industrious Revolution", which points out the socio-economic change from capital-intensive to labor-intensive one.
Source: “Akira Hayami”, English Wikipedia (CC BY-SA 4.0), excerpt