Ja Yong Choi

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Pohang-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
High cleanliness molten steel production method and refining device
- Patent number 9,752,202
- Issue date Sep 5, 2017
- Posco
- Ja Yong Choi
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
High Cleanliness Molten Steel Production Method and Refining Device
- Publication number 20150122083
- Publication date May 7, 2015
- POSCO
- Ja Yong Choi
- C21 - METALLURGY OF IRON