Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12146215 | Plated steel plate having excellent glossiness and surface property, and method for manufacturing same | Hyeon-Soop HAN, Young-Jin Kwak, Jin Tae Kim | 2024-11-19 |
| 11905587 | Alloy coated steel sheet | Ji Hoon Yang, Jae In Jeong, Kyung Hwang Lee, Yong-Hwa Jung | 2024-02-20 |
| 11781207 | Galvanized steel sheet having excellent hardness and galling resistance | Kyung-Hoon Nam, Yong-Hwa Jung, Kyoung-Pil KO, Woo-Sung Jung | 2023-10-10 |
| 11731397 | Alloy-coated steel sheet and manufacturing method therefor | Ji Hoon Yang, Jae In Jeong, Yong-Hwa Jung | 2023-08-22 |
| 11649542 | Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance | Young-Jin Kwak, Goo-Hwa Kim, Mun-Jong Eom, Seok-Jun Hong, Kyoung-Pil KO +3 more | 2023-05-16 |
| 11608556 | Alloy-coated steel sheet and manufacturing method thereof | Ji Hoon Yang, Jae In Jeong, Yong-Hwa Jung | 2023-03-21 |
| 11414743 | Multilayered zinc alloy plated steel material having excellent spot weldability and corrosion resistance | Young-Jin Kwak, Woo-Sung Jung | 2022-08-16 |
| 11208716 | Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance | Young-Jin Kwak, Goo-Hwa Kim, Mun-Jong Eom, Seok-Jun Hong, Kyoung-Pil KO +3 more | 2021-12-28 |
| 11203802 | Single layer zinc alloy plated steel material exhibiting excellent spot weldability and corrosion resistance, and fabrication method therefor | Young-Jin Kwak | 2021-12-21 |
| 11136651 | Zn-Mg alloy plated steel material having excellent corrosion resistance and plating adhesion | Seok-Jun Hong, Young Do Kim, Woo-Sung Jung, Hyun-Woo Kim, Jong-Min Byun +1 more | 2021-10-05 |
| 10988845 | Plated steel sheet having multilayer structure and manufacturing method therefor | Kyoung-Pil KO, Kyung-Hoon Nam, Dong-Yoeul Lee, Yong-Hwa Jung, Woo-Sung Jung | 2021-04-27 |
| 10619228 | Steel sheet coated with aluminum-magnesium | Ji Hoon Yang, Jae In Jeong, Yonghwa Jung | 2020-04-14 |
| 10457834 | Chrome free coating composition having excellent blackening resistance and corrosion resistance, and surface-treated steel sheet | Young-Jin Kwak, Dong-Yun Kim, Yong-Jin Cho, Myoung-Hee Choi | 2019-10-29 |
| 10196736 | Heating apparatus, and coating device comprising same | Yong-Hwa Jung, Kyung-Hoon Nam, Mun-Jong Eom, Woo-Sung Jung, Seok-Jun Hong +2 more | 2019-02-05 |
| 10106866 | Magnesium-aluminum coated steel sheet | Jae In Jeong, Ji Hoon Yang, Yong-Hwa Jung | 2018-10-23 |
| 9982342 | Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion | Dong-Yoeul Lee, Kyung-Hoon Nam, Yong-Hwa Jung, Seok-Jun Hong, Young-Jin Kwak +2 more | 2018-05-29 |
| 9957619 | Phosphate solution for zinc or zinc-based alloy plated steel sheet, and zinc or zinc-based alloy plated steel sheet using the same | Young-Jin Kwak, Kyung-Hoon Nam, Yong-Hwa Jung, Dong-Yoeul Lee, Seok Won Cho +6 more | 2018-05-01 |
| 9744743 | Zn—Mg alloy plated steel sheet, and method for manufacturing same | Woo-Sung Jung, Seok-Jun Hong, Kyung-Hoon Nam, Dong-Yoeul Lee, Yong-Hwa Jung +2 more | 2017-08-29 |
| 9732423 | Dry coating apparatus | Kyung-Hoon Nam, Mun-Jong Eom, Young-Jin Kwak, Woo-Sung Jung, Dong-Yoeul Lee +6 more | 2017-08-15 |
| 9689057 | Steel sheet coated with aluminum-magnesium | Ji Hoon Yang, Jae In Jeong, Yonghwa Jung | 2017-06-27 |
| 9683294 | Conversion coating composition, surface treated steel sheet, and method for manufacturing the same | Yeon Ho Kim, Young-Jin Kwak, Yon-Kyun Song, Yang-Ho Choi, Kyoung-Pil KO +2 more | 2017-06-20 |
| 9441302 | Method for manufacturing Zn—Mg alloy-coated steel sheet having high blackening resistance and coating adhesion | Dong-Yoeul Lee, Kyung-Hoon Nam, Yong-Hwa Jung, Seok-Jun Hong, Young-Jin Kwak +2 more | 2016-09-13 |
| 9382630 | Zinc alloy coated steel sheet having good sealer adhesion and corrosion resistance and process of manufacturing the same | Young-Jin Kwak, Dong-Yoeul Lee, Kyung-Hoon Nam, Sang Cheol Lee, Yong-Hwa Jung +3 more | 2016-07-05 |
| 9296903 | Film formation composition for preventing blackening of steel sheet, and steel sheet having film formed by composition | Young-Jin Kwak, Dong-Yun Kim, Woo-Sung Jung, Kyung-Hoon Nam, Dong-Yoeul Lee +8 more | 2016-03-29 |
| 9267203 | Continuous coating apparatus | Kyung-Hoon Nam, Young-Jin Kwak, Dong-Yoeul Lee, Yong-Hwa Jung, Kyoung-Bo Kim +4 more | 2016-02-23 |