Fuminori Sakaguchi was born in Matsuzaka, Mie Prefecture, Japan, on May 21, 1960. He received the B.S. and M.S. degrees in geophysics from Kyoto University, Kyoto, Japan, in 1983 and 1985, respectively. He is now studying towards the Dr. Eng. degree in applied mathematics and physics at Kyoto University.His current research interests are in the areas of time-series analysis and digital signal processing.