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History
2000. 03
Developed PDA-Keyboard, Production and Marketing for Digital Door-Lock
1999. 10
Developed ¡®Digital Door Lock¡¯
1999. 10
Developed DongDaeMun¡¯s Online Shop using ¡°Business Model for Real time
mass database control¡±
1998. 10
Developed Wind Turbine System supported by Ministry of Industry and Energy
1997. 03
Developed Thermoelectric Chiller using Thermoelectric Semiconductor
1996. 07
Developed Semiconductor Equipment¡¯s Thermoelectric Chiller
1995. 01
Developed Toy RC-Car¡¯s Control-IC
1994. 03
Developed Vehicle Tacho & Speed Meter Control-IC
1993. 01
Designed Anti-lock Break System Control-IC and Developed Sensor for Wheel
Rotation
1991. 01
Developed ¡®Integrated Magnetic Sensor¡¯