1969.Ph D.Osaka city Unive. Japan

1971-1973 NIH Fellow(Standford Univ.)U.S.A.

1974-1978 Tsukuba Univ.Asistant Pro . Japan

1979-2004. KAIST.Prof. Korea

Activity and Honours

2007 The Fellow of Korean National nAcademy of Science

2004 President Award(Hyuksin award in Science)

2003 Fellow of Third World Academy of Science(Twas)

1994 Invited Prof.(Paris 4 Univ.).France

1992 Invited Lecture-ship, Guest Professor (Louis Pasteur Univ. France, 1992.1-2)