CleanWorld Hi-Tech (CWH) was established in 1999 by Dr Jang Kam Yong, who had worked at Ssangyong Research Lab and Korea Institute of Science and Technology Lab for 20 years. He established the company to apply more effectively new tchnologies developed by him. He graduated from the Material Science and Eng. of the Seoul National University and received a Ph.D from the University of Illinois Urbana-Champaign, U.S.A. in 1992. He is interested in highly functional materials and water treatment systems using Far Infrared Rays. He developed new materials which for various industrial tools during his tenure in the lab. He also obtained several Korean and US patents for developing anti-pollution apparatus that treats wastewater. Korean Patents (total 30 patents) Manufacturing method for Natural Magic PAS (Korea, 10-2002-0015538). Moisturizing coating process and system using far infrared ray materials (Korea, 10-2001-0013071).?? Far Infrared Ray ceramic coating??(technology Korea, 10-2001-0024496). Bio-energy dream water activation system (Korea, 0233115) Compact cultivator of sprouted beans (Korea, 0220365). Manufacturing system of active water using method of far infrared rays and magnets (Korea, 0203218) etc.