1986-2009 1974-1980 Assistant, Department of Neurosurgery, Kanazawa University School of Medicine 1980-1986 Instructor, Department of Neurosurgery, Kanazawa University School of Medicine 1986-1992 Associate Professor, Department of Neurosurgery, Fukui Medical School 1992-2002 Professor, Department of Neurosurgery, Fukui Medical University, Professor of Chairman, Division of Neurosurgery, Department of Locomotor Medicine, Faculty of Medical Sciences, University of Fukui