DC

Do-Yon Chang

KM Korea Institute Of Machinery & Materials: 1 patents #1 of 19Top 6%
📍 Changwon-si, KR: #13 of 37 inventorsTop 40%
Overall (2005): #210,755 of 245,428Top 90%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6846367 Heat-treating method for improving wear-resistance and corrosion-resistance of chromium-plated steel substrate Kee-Seok Nam, Sik-Cheol Kwon, Kyu Hwan Lee, Man Kim, Dong Soo Kim +1 more 2005-01-25