Dong Kyun Choo

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Patents Grantslast 30 patents

Information Patent Grant
Magnesium alloy sheet and manufacturing method thereof
- Patent number 11,542,577
- Issue date Jan 3, 2023
- POSCO HOLDINGS INC.
- Jae Sin Park
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Thermal reduction apparatus for metal production, gate device, cond...
- Patent number 11,136,646
- Issue date Oct 5, 2021
- RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
- Dong Kyun Choo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Thermal reduction apparatus for metal production, gate device, cond...
- Patent number 10,287,651
- Issue date May 14, 2019
- RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
- Dong Kyun Choo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Apparatus for preventing the contamination of casting rolls and bul...
- Patent number 7,021,364
- Issue date Apr 4, 2006
- Posco
- Cheol-Min Park
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Apparatus for lubricating edge dam in twin-roll type strip casting...
- Patent number 6,202,792
- Issue date Mar 20, 2001
- Pohang Iron & Steel Co., Ltd.
- Han Nam Cheong
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
MAGNESIUM ALLOY SHEET AND MANUFACTURING METHOD THEREOF
- Publication number 20210140017
- Publication date May 13, 2021
- POSCO
- Jae Sin Park
- B22 - CASTING POWDER METALLURGY
Information Patent Application
THERMAL REDUCTION APPARATUS FOR METAL PRODUCTION, GATE DEVICE, COND...
- Publication number 20190218642
- Publication date Jul 18, 2019
- Research Institute of Industrial Science & Technology
- Dong Kyun CHOO
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
THERMAL REDUCTION APPARATUS FOR METAL PRODUCTION, GATE DEVICE, COND...
- Publication number 20160069615
- Publication date Mar 10, 2016
- Research Institute of Industrial Science & Technology
- Dong Kyun CHOO
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Apparatus for preventing the contamination of casting roll and the...
- Publication number 20040251583
- Publication date Dec 16, 2004
- Cheol-Min Park
- B22 - CASTING POWDER METALLURGY