 Ph.D., Kyung Hee University, Department of Mechanical Engineering, Korea, 1985.8  M.S., Kyung Hee University, Department of Mechanical Engineering, Korea, 1978.8  B.S, Kyung Hee University, Department of Mechanical Engineering, Korea, 1976.2

 Professor, Kyung Hee University, Korea, 1979 - present  Dean of Research and University-Industry Cooperation, Kyung Hee University, Korea, 1998 – 2000  Chairman of Professor Association, Kyung Hee University, Korea, 2009~2011

 President, Korean Society of Intellectual Property Education and Research, 2017 – present  Thesis Director Awards in CPU, Commissioner of the Korean Intellectual Property Office, Korea, 2012  Awards Certificate, Minister of Trade and Industry, Korea, 2010  Awards Certificate, Minister of Education, Korea, 2003  Best Researcher Awards for Professor, Kyung Hee University, Korea, 1999

Machine Design, Mechanical Behavior of Materials, Engineering Method for Fracture and Fatigue, Fatigue Life Estimate for Crack, Gear Pitting and gear Design.