2004. 9~2006. 1
A visiting professor at Caltech

2004~2005
Member of Local Organization Committee, PIV '05

2004
Registered on Marquis Who's Who in Science and Engineering 8th edition (2004~2005)

2004
Member of the Advisory Committee of Technology, Environmental Management Corporation

2004
Registered on IBC's (International Biographical Centre) 2000 Outstanding Scientists of the 21st 2004 edition

2003
Registered on Marquis Who's Who in Science and Engineering 7th edition (2003~2004)

2003
Member of the planning committee of Precision Processing System Technology Division, the Next Generation New Technology Development Project, the Ministry of Commerce, Industry and Energy

2003
Member of the planning committee of Precision Machineray Division, the Next Generation Growth Power, the Ministry of Science and Technology

2003~present
Member of the Advisory Committee of the Center for Nanoscale Mechatronics & Manufacturing, Ministry of Science & Technology

2003~present
Professor of Korea Polytechnic University

2002~present
President & CEO of Nanoptic Inc.

2002~2003
Member of Scientific Organization Committee, 1st CAE Technology Conference

2002~2003
Member of Local Organization Committee, PIV '03

2002
Member of Team Vision 4, National Technology Roadmap, Ministry of Science & Technology

2002
Resigned from LG Electronics(Chief Research Engineer, Digital Appliance Research Laboratory)

2001~present
Life member and director of The Korean Society of Visualization, Chairman of Micro & Bio Visualization Division

2001~2003
Member of Evaluation/Administration Committee, Manufacturing technology development of Milli-structure, Ministry of Commerce, Industry and Energy

2001
Member of Technical Program Committee, 6th ASV

2001
Member of Planning Committee of oncoming generation of microminiature technology, Minstry of Commerce, Industry Energy

2000~2001
Member of Planning Committee of G7 MEMS Industrialization, Ministry of Commerce, Industry and Energy

1999
Ph.D., Osaka University, Japan

1998~present
Regular member of ASME(The American Society of Mechanical Engineers)

1991~present
Regular member of KSME(The Korean Society of Mechanical Engineers)

1990~present
Life member of The Society of Air-Conditioning and Refrigerating Engineers of Korea

1990~present
Regular member of the Visualization Society of Japan

1989
Entered LG Electronics