John J. Woo finished his mechanical engineering doctoral degree at the Illinois Institute of Technology of the USA in 1990. He developed the 6,000m class AUV OKPO-6000 from 1993 to 1998. The OKPO-6000 was tested successfully in the Pacific Ocean in 1998. He has been involved in the development of sice scan sonar and subsequent AUVs since 2000. Presently he is the CEO of DSME E&R Ltd in Korea.