- INHA Univ., Master's Degree of Metal Applied Physics
- Steel Plant (Expert with 32 years career)
- Steel Rolling Plant, Heat Treatment System
 
- INHA Univ., Bachelor’s Degree of Electrical Engineering
- Steel Plant with 17 years career
- Pickling, Acid Recycling and Wastewater Treatment System
 
- Chung-Ang Univ. Master’s Degree of Solid State Physics
- In-Solar Tech. Researcher (Before)