Patents by Inventor Chan-Seok Bang

Chan-Seok Bang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Composition for surface treating of steel sheet, steel sheet using same, and manufacturing method of same
    Patent number: 12325809
    Abstract: The present disclosure provides a solution composition having excellent acid corrosion resistance and adhesion to a steel sheet, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet. Specifically, the present disclosure provides a solution composition for treating a surface of a steel sheet, the solution composition containing colloidal silica, alkoxy silane, a solvent, an acidity regulator, an acrylate-based monomer, an adhesion improver including a backbone formed of siloxane bonds, and a metal chelate curing agent, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: June 10, 2025
    Assignees: POSCO, NOROO COIL COATINGS CO., LTD.
    Inventors: Chang-Hoon Choi, Won-Ho Son, Chan-Seok Bang, Jae-Duck Ko
  • ELECTROGALVANIZED STEEL SHEET HAVING SUPERB WHITENESS AND METHOD FOR MANUFACTURING SAME
    Publication number: 20230027626
    Abstract: The present invention provides an electrogalvanized steel sheet and a method manufacturing same, the electrogalvanized steel sheet having superb whiteness, and an attractive exterior surface due to reduction in surface scale.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 26, 2023
    Applicant: POSCO
    Inventors: Moon-Jae KWON, Su-Young KIM, Chan-Seok BANG
  • COMPOSITION FOR SURFACE TREATING OF STEEL SHEET, STEEL SHEET USING SAME, AND MANUFACTURING METHOD OF SAME
    Publication number: 20230019863
    Abstract: The present disclosure provides a solution composition having excellent acid corrosion resistance and adhesion to a steel sheet, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet. Specifically, the present disclosure provides a solution composition for treating a surface of a steel sheet, the solution composition containing colloidal silica, alkoxy silane, a solvent, an acidity regulator, an acrylate-based monomer, an adhesion improver including a backbone formed of siloxane bonds, and a metal chelate curing agent, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 19, 2023
    Applicants: POSCO, NOROO COIL COATINGS CO., LTD.
    Inventors: Chang-Hoon Choi, Won-Ho Son, Chan-Seok Bang, Jae-Duck Ko