1947 Born in Saitama Prefecture, Japan
1966-71 B.Arch, University of Notre-Dame, IN Ford Scholarship
1972-73 O&W Associates, Tokyo
1973-74 Fulbright Fellowship
1973-75 M.Arch in Urban Design, Harvard University, MA
1974 Buckminster Fuller and Sadao, Inc., Cambridge, MA, Isamu Noguchi Studio, New York
1975-76 Kenzo Tange and URTEC, Tokyo
1995 Spring Visiting Professor, Rhode Island School of Design, Providence, R.I.
Visiting Critic, Graduate School of Design, Harvard University, MA
2002 Presented Part 1 of “Atoms and Tensegrity: Models of atomic structure derived from the geometric characteristics of electron orbits”
2002−12 Committee member, Reform and Renewal Architecture Exhibit, and chair of the exhibition jury, Idea Contest
2007 Presented Part 2 of “Atoms and Tensegrity: Models of atomic structure derived from the geometric characteristics of electron orbits”
2008−09 Audi Brand Ambassador
2009 TED x Tokyo 2009 "GOoD DESIGN"
2010− Trustee, Ishibashi Foundation
2010− Board member, Notre Dame University Asia Studies Advisory Board