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*  1983.01 ~ 1985.11 LG Electronics Central Research Institute (Robotics Team)  Senior Researcher *  1985.11 ~ 1987.06  Korea IBM Purchasing Office Purchasing and Quality Assurance Engineer *  1988.01 ~ 1993.08  University of Southern California, Electrical Engineering Research and Teaching Assistant *  1993.10 ~ 1994.02 Colorado State University, Electrical Engineering and Computer Science Research Associate *  1994.03 ~ 1997.02 Samsung Advanced Institute of Technology, Precision Machinary Lab. Team Leader *  1997.03 ~ 2002.02  Hanyang University, Electronics and Electrical Engineering Assistant Professor*  2002.03 ~ 2005.02  Hanyang University, Electrical Engineering and Computer Science Associate Professor *  20052005.03 ~ 2006. 12  Hanyang University, Electrical Control and Biomedical Engineering Associate Professor *  20072007.01 ~  Hanyang University, Electrical and Biomedical Engineering Professor * [[2013 ~ 2015 IEEE 제어시스템기술 트랜잭션(IEEE Transaction on Control System Technology) 편집위원* 2016 ~ 2018 IEEE 저널 제어시스템기술 트랜잭션(IEEE Transaction on Control System Technology), 지능형교통시스템 트랜잭션(IEEE Transaction on Intelligent Transportation Systems)·IFAC 저널 IFAC 메커트로닉스 저널(Journal Mechatronics) 편집위원* 2019년]] [[1월 1일]] ~ [[12월 31일]] 제어·로봇·시스템학회(ICROS, Institute of Control, Robotics and Systems) 회장 =동정=*2016 IEEE·IFAC저널 편집위원* 2018 ICROS 회장