Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11332667 | Composition for washing pickled steel plate, method for washing pickled steel plate by using same, and steel plate obtained thereby | Yon-Kyun Song, Ji Hoon Park, Hoon Yun, Seok-Chan Choe, Kyoung-Pil KO | 2022-05-17 |
| 11028322 | Composition for washing pickled steel plate, method for washing pickled steel plate by using same, and steel plate obtained thereby | Yon-Kyun Song, Ji Hoon Park, Hoon Yun, Seok-Chan Choe, Kyoung-Pil KO | 2021-06-08 |
| 10053749 | Production method for plated steel sheet using a steel sheet annealing device | Kwang-Geun Chin, Man-Young Park | 2018-08-21 |
| 9321077 | Plating method | Hyun-Ju Jeong, Yeong-Seob Kueon, Hyeong-Jun Huh, Jin-Gun Jang | 2016-04-26 |