Yasuyuki Miyazaki received his Ph.D. degrees in Aeronautics from the University of Tokyo in 1993. He has been working for Nihon University since 1993. His major research area includes flexible multi-body dynamics and structural dynamics of deployable large space structure. He also researched on numerical simulation of impact of elastic bodies as a visiting researcher of University of Colorado at Boulder from 2001 to 2002. He was a visiting professor of JAXA from 2006 to 2008. He is a professor of Nihon University since 2008. He is currently interested in space demonstration of his research. His laboratory has already developed and launched two pico-satellites for the space demonstration of his research. He is a member of JAXA’s solar power sail project "IKAROS", which was launched and deployed thin large membrane in 2010. He developed the numerical analysis code for the prediction of the deployment dynamics of the membrane of IKAROS. His current research interest includes the state-of-art self-deployable structure for future large space structure mission as well as the deployment dynamics of JAXA's large solar power sail "OKEANOS" and space utilization using nano-satellites.