Uoo Chang Jung

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Pohang, KR

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Patents Grantslast 30 patents

Information Patent Grant
2-stage fluidized bed type fine iron ore reducing apparatus, and re...
- Patent number 6,491,738
- Issue date Dec 10, 2002
- Pohang Iron & Steel Co., Ltd.
- Il Ock Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Two step twin-single fluidized bed pre-reduction apparatus for pre-...
- Patent number 6,235,079
- Issue date May 22, 2001
- Pohang Iron & Steel Co., Ltd.
- Nag Joon Choi
- C21 - METALLURGY OF IRON
Information Patent Grant
3-Stage fluidized bed type fine iron ore reducing apparatus having...
- Patent number 6,110,413
- Issue date Aug 29, 2000
- Pohang Iron & Steel Co., Ltd.
- Uoo Chang Jung
- C21 - METALLURGY OF IRON