Assignee
POSCO CO LTD
KR·84 granted patents·292 pending applications·35 citations·filing 2003–2025
Top patents by PatentIndex Score
376 records- 0197US12509751B2High strength steel sheet having excellent workability and method for manufacturing samePOSCO CO LTD·Filed 2021·Granted Dec 30, 2025·2 cites·8 claims
- 0297US12049678B2Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereofPOSCO CO LTD·Filed 2023·Granted Jul 30, 2024·1 cites·10 claims
- 0395US11788166B2Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing samePOSCO CO LTD·Filed 2023·Granted Oct 17, 2023·2 cites·18 claims
- 0494US12435385B2Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereofPOSCO CO LTD·Filed 2024·Granted Oct 7, 2025·0 cites·20 claims
- 0593US12467111B2Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing samePOSCO CO LTD·Filed 2024·Granted Nov 11, 2025·0 cites·20 claims
- 0693US12467113B2Wire rod and steel wire for springs having excellent corrosion fatigue resistance properties, and method for producing samePOSCO CO LTD·Filed 2023·Granted Nov 11, 2025·0 cites·3 claims
- 0793US2025010579A1Steel sheet for hot press formed memberPOSCO CO LTD·Filed 2024·Application pending·0 cites
- 0892US7846271B2Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the samePOSCO CO LTD·Filed 2005·Granted Dec 7, 2010·16 cites·6 claims
- 0992US2026043104A1Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing samePOSCO CO LTD·Filed 2025·Application pending·0 cites
- 1092US2024261843A1Hot press-formed part, and manufacturing method thereofPOSCO CO LTD·Filed 2024·Application pending·0 cites
- 1192US2024198633A1Steel sheet for hot press formed member having excellent painting adhesion and post-painting corrosion resistance, and method for manufacturing samePOSCO CO LTD·Filed 2024·Application pending·0 cites
- 1291US12049679B2Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing samePOSCO CO LTD·Filed 2023·Granted Jul 30, 2024·0 cites·5 claims
- 1391US2026043106A1Wire rod and steel wire for springs having excellent corrosion fatigue resistance properties, and method for producing samePOSCO CO LTD·Filed 2025·Application pending·0 cites
- 1491US2026077570A1Unconstrained vibration damping metal sheet with foam pores and method for manufacturing samePOSCO CO LTD·Filed 2025·Application pending·0 cites
- 1590US11998971B2Hot press-formed part, and manufacturing method thereofPOSCO CO LTD·Filed 2023·Granted Jun 4, 2024·0 cites·20 claims
- 1690US11827950B2Method of manufacturing high-strength steel sheet having excellent processabilityPOSCO CO LTD·Filed 2022·Granted Nov 28, 2023·1 cites·7 claims
- 1789US12297544B2Hot press formed product having excellent corrosion resistance and method for preparing samePOSCO CO LTD·Filed 2023·Granted May 13, 2025·0 cites·9 claims
- 1889US11897014B2Hot press-formed part, and manufacturing method thereofPOSCO CO LTD·Filed 2023·Granted Feb 13, 2024·0 cites·2 claims
- 1989US2024051265A1Steel sheet for hot press formed member having excellent resistance to hydrogen delayed fracture and method for manufacturing thereofPOSCO CO LTD·Filed 2023·Application pending·0 cites
- 2088US12285824B2Methods of welding high manganese steel with step-out weld zone erosion-corrosion resistancePOSCO CO LTD·Filed 2024·Granted Apr 29, 2025·0 cites·8 claims
- 2188US12226976B2Manufacturing method of aluminum-based alloy plated steelPOSCO CO LTD·Filed 2024·Granted Feb 18, 2025·0 cites·8 claims
- 2288US11970749B2Hot rolled steel sheet having excellent formability and fatigue properties and manufacturing method thereforPOSCO CO LTD·Filed 2023·Granted Apr 30, 2024·0 cites·3 claims
- 2388US2024344164A1Advanced high strength zinc plated steel sheet having excellent surface quality and electrical resistance spot weldability and manufacturing method thereofPOSCO CO LTD·Filed 2024·Application pending·0 cites
- 2488US2024082902A1Microcrack-reduced, hot press-formed article, and method for manufacturing samePOSCO CO LTD·Filed 2023·Application pending·0 cites
- 2587US12486553B2Zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds, and manufacturing method thereofPOSCO CO LTD·Filed 2024·Granted Dec 2, 2025·0 cites·8 claims
- 2687US2025305081A1Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereofPOSCO CO LTD·Filed 2025·Application pending·0 cites
- 2787US2026005233A1Cathode active material precursor and manufactur-ing method thereof, and cathode active materialPOSCO CO LTD·Filed 2025·Application pending·0 cites
- 2887US2024191329A1Al-fe-alloy plated steel sheet for hot forming, having excellent twb welding characteristics, hot forming member, and manufacturing methods thereforPOSCO CO LTD·Filed 2024·Application pending·0 cites
- 2987US2024009963A1Steel sheet for hot press formed memberPOSCO CO LTD·Filed 2023·Application pending·0 cites
- 3087US2024410028A1Plated steel sheets for hot press forming having excellent hydrogen brittleness resistance and impact resistance, hot press formed parts, and manufacturing methods thereofPOSCO CO LTD·Filed 2024·Application pending·0 cites
- 3186US12134809B2High strength steel sheet having excellent high-temperature elongation characteristic, warm-pressed member, and manufacturing methods for the samePOSCO CO LTD·Filed 2023·Granted Nov 5, 2024·0 cites·4 claims
- 3286US11981975B2High-strength steel sheet having excellent impact resistant property and method for manufacturing thereofPOSCO CO LTD·Filed 2023·Granted May 14, 2024·0 cites·15 claims
- 3386US2025112235A1Lithium compound with small primary particle size, method for preparing the same, nickel-based cathode active material prepared from the same, and secondary battery using samePOSCO CO LTD·Filed 2024·Application pending·0 cites
- 3486US2026015704A1Aluminum alloy-plated steel sheet, hot-formed member, and methods for manufacturing aluminum alloy-plated steel sheet and hot-formed memberPOSCO CO LTD·Filed 2025·Application pending·0 cites
- 3586US2023407432A1Annealing separator composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheetPOSCO CO LTD·Filed 2023·Application pending·0 cites
- 3685US12522888B2Method of manufacutring a high-strength cold rolled steel sheet having high hole expansion ratio, and highstrength hot-dip galvanized steel sheetPOSCO CO LTD·Filed 2023·Granted Jan 13, 2026·0 cites·4 claims
- 3785US12404572B2Oriented electrical steel sheet and method for preparing samePOSCO CO LTD·Filed 2023·Granted Sep 2, 2025·0 cites·4 claims
- 3885US11904572B2Manufacturing method of aluminum-based alloy plated steelPOSCO CO LTD·Filed 2023·Granted Feb 20, 2024·0 cites·17 claims
- 3985US11834727B2Hot rolled coated steel sheet having high strength, high formability, excellent bake hardenability and method of manufacturing samePOSCO CO LTD·Filed 2023·Granted Dec 5, 2023·0 cites·12 claims
- 4085US2024295003A1Hot press forming member having excellent resistance to hydrogen embrittlement, and method for manufacturing samePOSCO CO LTD·Filed 2024·Application pending·0 cites
- 4185US2023279518A1High-strength steel sheet having excellent impact resistance, and method for manufacturing samePOSCO CO LTD·Filed 2023·Application pending·0 cites
- 4284US12221701B2Welded member of galvanized steel sheetsPOSCO CO LTD·Filed 2024·Granted Feb 11, 2025·0 cites·8 claims
- 4384US12139779B2Steel sheet with excellent bake hardening properties and corrosion resistance and method for manufacturing samePOSCO CO LTD·Filed 2022·Granted Nov 12, 2024·0 cites·4 claims
- 4484US2026048570A1Zinc-based coated steel material having excellent corrosion resistance and spot weldabilityPOSCO CO LTD·Filed 2025·Application pending·0 cites
- 4584US2025011912A1Aluminum-based plated steel plate for hot press having excellent resistance against hydrogen delayed fracture and spot weldability, and method for manufacturing samePOSCO CO LTD·Filed 2024·Application pending·0 cites
- 4684US2024368724A1Zinc plated steel sheet having excellent surface quality and spot weldability, and manufacturing method thereforPOSCO CO LTD·Filed 2024·Application pending·0 cites
- 4784US2025269626A1Steel sheet plated with al-fe for hot press forming having excellent corrosion resistance and spot weldability, and manufacturing method thereofPOSCO CO LTD·Filed 2025·Application pending·0 cites
- 4884US2025263809A1Grain oriented electrical steel sheet and method for manufacturing samePOSCO CO LTD·Filed 2025·Application pending·0 cites
- 4984US2026002248A1Heterogeneous coated steel sheet having excellent workability and corrosion resistance, and method for manufacturing samePOSCO CO LTD·Filed 2025·Application pending·0 cites
- 5083US12521757B2Bilayer composition for surface treatment of steel plate and surface-treated steel plate using samePOSCO CO LTD·Filed 2024·Granted Jan 13, 2026·0 cites·17 claims
Showing the top 50 of 376 patent records by PatentIndex Score.
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