Doo-Chan CHANG

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Gwangyang-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing hot-dip galvanized steel sheet having excellen...
- Patent number 11,873,561
- Issue date Jan 16, 2024
- POSCO Co., Ltd
- Sun-Ho Jeon
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLEN...
- Publication number 20200071809
- Publication date Mar 5, 2020
- POSCO
- Sun-Ho JEON
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...