Joo-hyun Ryu

4 Patents

• US125903492026

  High-strength Hot-dip Galvanized Steel Sheet with High Ductility and Excellent Formability, and Manufacturing Method for Same

  POSCO CO., Ltd

  0 cites
• US124924562025

  Ultra High Strength and High Ductility Steel Sheet Having Excellent Yield Ratio and Manufacturing Method for Same

  POSCO CO., Ltd

  0 cites
• US121230662024

  Ultrahigh-strength Steel Sheet Having Excellent Yield Ratio, and Manufacturing Method Therefor

  POSTECH ACADEMY-INDUSTRY FOUNDATION

  0 cites
• US116555172023

  Ultrahigh-strength and High-ductility Steel Sheet Having Excellent Cold Formability

  POSCO CO., Ltd

  0 cites