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Jun Jeong BEAK
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Gwangyang-si, KR
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Patents Grants
last 30 patents
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Patent Grant
Method for producing alloy steel
Patent number
11,441,211
Issue date
Sep 13, 2022
POSCO
Woong Hee Han
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING ALLOY STEEL
Publication number
20200377977
Publication date
Dec 3, 2020
POSCO
Soo Chang KANG
B22 - CASTING POWDER METALLURGY
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Patent Application
DEPHOSPHORIZING FLUX AND METHOD FOR PREPARING SAME
Publication number
20190309381
Publication date
Oct 10, 2019
POSCO
Woong Hee HAN
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING ALLOY STEEL
Publication number
20190211425
Publication date
Jul 11, 2019
POSCO
Woong Hee HAN
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...