Chang Hee Yim

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Pohang, KR

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Patents Grantslast 30 patents

Information Patent Grant
Converter
- Patent number 6,346,212
- Issue date Feb 12, 2002
- Pohang Iron & Steel Co., Ltd.
- Sung-Mo Seo
- C21 - METALLURGY OF IRON
Information Patent Grant
Molten steel smelting apparatus for producing ultra-low carbon steel
- Patent number 6,156,263
- Issue date Dec 5, 2000
- Pohang Iron & Steel Co., Ltd.
- Sang Bok An
- C21 - METALLURGY OF IRON