Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410503 | Plated steel sheet having excellent corrosion resistance and bendability and method for manufacturing same | Sung-Joo Kim, Myung-Soo Kim, Bong-Hwan Yoo, Yong-Kyun Cho, Il-Ryoung Sohn | 2025-09-09 |
| 12371770 | High-strength hot-dip galvanized steel sheet having excellent surface quality and electric resistance spot weldability, and manufacturing method therefor | Ki-Cheol Kang, Myung-Soo Kim, Jong-Sang Kim | 2025-07-29 |
| 12351919 | Plated steel sheet having excellent sealer adhesion and method for manufacturing same | Il-Ryoung Sohn, Bong-Hwan Yoo | 2025-07-08 |
| 12270108 | Plated steel sheet having excellent corrosion resistance, workability and surface quality and method for manufacturing same | Il-Ryoung Sohn, Sung-Joo Kim, Bong-Hwan Yoo, Myung-Soo Kim, Jong-Sang Kim +2 more | 2025-04-08 |
| 12054829 | Plated steel sheet having excellent corrosion resistance, galling resistance, workability and surface property | Sung-Joo Kim, Kyung-Kwan Park, Moon-Hi Hong, Heung-Yun Kim, Tae-Yeul Park +3 more | 2024-08-06 |
| 11834747 | Plated steel wire and manufacturing method for the same | Jong Sung Kim, Sung Hoon Kang, Gwang-Weon Yu, Il-Ryoung Sohn, Jong-Sang Kim | 2023-12-05 |
| 11692259 | High-strength hot-dip zinc plated steel material having excellent plating properties and method for preparing same | Il-Ryoung Sohn, Dae-Young Kang, Jong-Sang Kim, Min-Suk Oh | 2023-07-04 |
| 11643714 | Method for manufacturing zinc alloy plated steel material having excellent surface quality and corrosion resistance | Il-Ryoung Sohn, Jung Kuk KIM, Kyung-Jin An, Jung-Hoon Kim, Jong-Un Jung +1 more | 2023-05-09 |
| 11566314 | Zinc alloy plated steel material having excellent corrosion resistance after being processed | Il-Ryoung Sohn, Jong-Sang Kim | 2023-01-31 |
| 11505858 | Alloy-plated steel material having excellent crack resistance, and method for manufacturing same | Il-Ryoung Sohn, Jong-Sang Kim | 2022-11-22 |
| 11396691 | Alloy-plated steel material having excellent corrosion resistance and high surface quality | Il-Ryoung Sohn, Jong-Sang Kim, Jung Kuk KIM | 2022-07-26 |
| 11332816 | Zinc alloy plated steel material having excellent surface quality and corrosion resistance | Il-Ryoung Sohn, Jung Kuk KIM, Kyung-Jin An, Jung-Hoon Kim, Jong-Un Jung +1 more | 2022-05-17 |
| 11306381 | High-strength hot-dip zinc plated steel material having excellent plating properties and method for preparing same | Il-Ryoung Sohn, Dae-Young Kang, Jong-Sang Kim, Min-Suk Oh | 2022-04-19 |
| 11248287 | Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance | Min-Suk Oh, Sang-Heon Kim, Jong-Sang Kim, Hyun-Chu Yun, Bong-Hwan Yoo +1 more | 2022-02-15 |
| 10907243 | Plated steel material having excellent friction resistance and white rust resistance and method for preparing same | Min-Suk Oh, Jong-Sang Kim, Il-Ryoung Sohn | 2021-02-02 |
| 10584407 | Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance and method of manufacturing same | Min-Suk Oh, Sang-Heon Kim, Jong-Sang Kim, Hyun-Chu Yun, Bong-Hwan Yoo +1 more | 2020-03-10 |
| 10544497 | Zn alloy plated steel sheet having excellent phosphatability and spot weldability and method for manufacturing same | Min-Suk Oh, Sang-Heon Kim, Jong-Sang Kim, Bong-Hwan Yoo, Hyun-Chu Yun | 2020-01-28 |
| 9321147 | Descaling apparatus | Soo-Hyoun Cho, Young-Sool Jin | 2016-04-26 |
| 8806910 | Method and apparatus for removing scale from hot-rolled steel strip | Young-Sool Jin, Soo-Hyoun Cho, Kee-Jo Jeong, Young Ki Lee | 2014-08-19 |
| 6464930 | Furnace of apparatus for manufacturing a semiconductor device having a heat blocker for preventing heat loss during the unloading of wafers | Jae Hyuck An, Chang-Zip Yang, Hyun Han | 2002-10-15 |
| 6146461 | Chemical vapor deposition apparatus having a gas diffusing nozzle designed to diffuse gas equally at all levels | Chang-Zip Yang, Jae Hyuck An | 2000-11-14 |