Period Substance Usage Remark
1994.04бн1995.06
Thin film chip resistor.
Precision resistor
ABCO
1995.09бн1999.08
infrared sensor device
& sensor module.
Human motion detecting
sensor,Temp. sensor.
YOUNGNAM University
Dr. M. H. Lee
1996.08бн1997.06
surge absorber device
Over-Loaded voltage
absorption element
ABCO
1998.10бн1999.10
bolometer sensor
Human motion detecting
sensor, Temp. sensor.
SERVO Corporation of
America(U.S.A)
1998.07бн1999.06
thin film sensor
materials & ferroelectrics
Infrared detector.
KYUNGWON University
Advanced Materials
& Applied Technology
1999.07бн2000.06
dielectric thin film
for infrared sensor.
Infrared detector.
Research Center.
1999.12бн
PTC element for
protection over-load current.
Protecting element for
over-load current circuit.
Korea Research Institute of Chemical Technology.
Dr. J. R. Lee
2000.08бн
thin & thick film resistor for
application of mobile phone
Usage for mobile phone.
ABCO
2001.01~
2002.06
Wire wound type Ferrite Chip
Inductor
VCR camera, PC,FDD,HDD,DTV
ABCO

2001.06бн

Passive element internal organs highly integrated VCO module development
Usage for mobile phone.
ABCO
2002.09~
Acoustic Device Development(speaker, receiver, buzzer)
Mobile Phone, PC,Camcorder, Notebook PC
ABCO
Nov. 2003~
Slim type Inductor
Mobile Phone, Digital Camera, Camcorder