Patents by Inventor Kook-Jin Han

Kook-Jin Han 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).

  • Chrome Free Composition for Metal Surface Treatment and Surface-Treated Metal Sheet
    Publication number: 20080292894
    Abstract: A chrome free composition for metal surface treatment and a surface-treated metal sheet can provide excellent characteristics of high conductivity, corrosion resistance, alkali resistance, and high temperature and humidity resistance. The composition includes a vinyl based binder resin, an acryl based binder resin, and a solvent. In the vinyl based binder resin, a corrosion-resistant inorganic material is combined, and an amount of the vinyl based binder resin is in a range of 10 weight % to 70 weight % with respect to a total solid content. In the acryl based binder resin, a corrosion-resistant inorganic material is combined, and an amount of the acryl based binder resin is in a range of 15 weight % to 75 weight % with respect to the total solid content. An amount of the corrosion resistance inorganic material is in a range of 3 weight % to 25 weight % with respect to a total solid content.
    Type: Application
    Filed: December 22, 2005
    Publication date: November 27, 2008
    Applicant: POSCO
    Inventors: Rho-Bum Park, Ki-Duck Park, Hong-Jong Yoo, Kook-Jin Han, Yeong-Sool Jin, Sang-Keol Noh