Soo-hyoun Cho

4 Patents

• US122217022025

  Surface Treatment Solution Composition Containing Trivalent Chromium and Inorganic Compound, and Method for Manufacturing Hot Dip Galvanized Steel Sheet Surface-treated Using Same

  POSCO CO., Ltd

  0 cites
• US121944912025

  Ternary Hot-dip Galvannealed Steel Sheet Surface Treatment Solution Composition for Providing Excellent Blackening Resistance and Alkali Resistance, Ternary Hot-dip Galvannealed Steel Sheet Surface-treated Using Same, and Manufacturing Method Therefor

  POSCO

  0 cites
• US116348182023

  Solution Composition Containing Trivalent Chromium for Surface Treatment of Steel Sheet, Galvanized Steel Sheet Surface—treated with Same, and Method for Manufacturing Galvanized

  POSCO CO., Ltd

  0 cites
• US116348192023

  Solution Composition for Steel Sheet Surface Treatment, Zinc-based Plated Steel Sheet Surface-treated with Same, and Manufacturing Method Therefor

  NOROO COIL COATINGS CO., Ltd.

  0 cites