Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10196704 | Steel for resistance to complex corrosion from hydrochloric acid and sulfuric acid, having excellent wear resistance and surface qualities | Byoung-Ho Lee, Jong-Hwa Kim | 2019-02-05 |
| 9297057 | Cold rolled steel sheet having aging resistance and superior formability, and process for producing the same | Won-Ho Son, Ki-Bong Kang, Noi-Ha Cho, Ki-Duck Park | 2016-03-29 |
| 7922968 | Corrosion resistance improved steel sheet for automotive muffler and method of producing the steel sheet | Won-Ho Son, Jai-Ik Kim, Seung Hee Lee, Hee-Man Son | 2011-04-12 |
| 6773518 | Cold rolled steel sheet having excellent corrosion resistance to sulfuric acid | Ki-Ho Kim | 2004-08-10 |
| 5738738 | Method for manufacturing a cold rolled steel sheet with excellent enamel adherence | Sung Ju Kim | 1998-04-14 |