Inventor

CHO YEOL-RAE

KR32 patents

⚠️ This page may combine multiple inventors who share the name “CHO YEOL-RAE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHO YEOL-RAE

POSCO

Aluminum-iron alloy-coated steel sheet for hot press forming, having excellent hydrogen delayed fracture resistance, peeling resistance, and weldability and hot-formed member using same

Al—Fe-alloy plated steel sheet for hot forming, having excellent TWB welding characteristics, hot forming member, and manufacturing methods therefor

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

Steel sheet plated with Al—Fe for hot press forming having excellent corrosion resistance and spot weldability, and manufacturing method thereof

Steel sheet for hot press formed member having excellent resistance to hydrogen delayed fracture and method for manufacturing thereof

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

Hot press forming parts having excellent bending properties and method for manufacturing the same

Hot press forming parts having excellent bending properties and method for manufacturing the same

Heat treatable steel, product formed thereof having ultra high strength and excellent durability, and method for manufacturing same

Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same

Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same

Steel sheet for hot press formed product having superior bendability and ultra-high strength, hot press formed product using same, and method for manufacturing same

Steel sheet plated with Al—Fe alloy for hot press forming having excellent corrosion resistance and heat resistance, hot press formed part, and manufacturing method therefor

Steel sheet plated with Al—Fe for hot press forming having excellent corrosion resistance and spot weldability, and manufacturing method thereof

Steel sheet plated with Al—Fe alloy for hot press forming having excellent corrosion resistance and heat resistance, hot press formed part, and manufacturing method therefor

Iron-aluminum-based plated steel sheet for hot press forming, having excellent hydrogen delayed fracture properties and spot welding properties, and manufacturing method therefor

Zinc-plated steel sheet for hot pressing having outstanding surface characteristics, hot-pressed moulded parts obtained using the same, and a production method for the same

Hot press-formed member having excellent crack propagation resistance and ductility, and method for producing same

Hot-rolled steel sheet having excellent impact resistance, steel pipe, member, and manufacturing methods therefor

Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and manufacturing methods therefor

Plated steel sheet for hot press forming having excellent impact properties after hot press forming, hot press formed member, and manufacturing methods thereof

Zinc-plated steel sheet for hot pressing having outstanding surface characteristics, hot-pressed moulded parts obtained using the same, and a production method for the same

POSCO CO LTD

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

Aluminum-based plated steel plate for hot press having excellent resistance against hydrogen delayed fracture and spot weldability, and method for manufacturing same

Steel sheet for hot press formed member having excellent resistance to hydrogen delayed fracture and method for manufacturing thereof

Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same

Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same

CHO YEOL RAE

Steel sheet for hot press forming having low-temperature heat treatment property, method of manufacturing the same, method of manufacturing parts using the same, and parts manufactured by the same

SOHN IL-RYOUNG

Zinc-plated steel sheet for hot pressing having outstanding surface characteristics, hot-pressed moulded parts obtained using the same, and a production method for the same