1986 |
Developed oil pressure solenoid for excavator |
1987 |
Developed automatic on-off switch for vending machine |
| Developed automatic on-off switch for street light |
| Developed water level sensor for refrigerator |
1988 |
Developed controller for water purifier |
| Developed water level for water purifier |
2000 |
Developed solenoid valve for Kimchi refrigerator refrigerant |
| Developed UV sterilization lamp for water purifier |
2001 |
Developed UV sterilization lamp and circulating pump module for water purifier |
| Developed NOS (Normal Open Solenoid Valve) for water purifier |
| Developed B-SOL (Membrane Control Solenoid Valve) for water purifier |
| Developed FLC (Float Level controller Ass'y) for water purifier |
| Developed water tank and pump for automatic drainage |
2002 |
Developed converting valve for water softener |
2003 |
Developed water tank and pump for automatic drainage |
| Developed MP3 player |
| Attend the "Plus Phone Pay Solution consortium" |
2004 |
Developed door lock |
| Developed car satellite antenna |