Professor, Chuo University, Tokyo, Japan, until 2015, and Professor emeritus thereafter. PhD in 1982, MS & BS in 1969 &1967 from the University of Tokyo, and MS from Duke University USA in 1975. Major academic society activities; 5th Ishihara Lecturer on Earthquake Geotechnical Engineering, Christchurch (2015), Chairman of TC4 (Earthquake Geotechnical Engineering), ISSMGE (2005-2009), Chairman of Organizing Committee of IS-2009 Tokyo by TC4, ISSMGE (2009) . Publications in English (all CRC Press, London); Innovative Earthquake Soil Dynamics (2017): Performance-Based Design in Earthquake Geotechnical Engineering - from Case History to Practice- (2009). Earthquake Geotechnical Case Histories for Performance-Based Design: (2009). More than 100 reviewed English papers.