Patents by Inventor Sung Su Jun

Sung Su Jun 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).

  • Patent number: 7244511
    Abstract: A single-side embossed color steel sheet, and a method for manufacturing the same are disclosed. The steel sheet comprises a steel sheet substrate, a zinc or zinc alloy-plated layer, a non-chromate or chromate pretreated layer, a primary coat paint layer of modified epoxy or modified polyester, a color base paint layer, a printed layer, and a top coat clear paint layer. The printed layer exhibits a feeling of solidity with various feelings of texture and colors. The top coat clear paint layer serves to protect the printed layer from contaminants. The color steel sheet exhibits a remarkably enhanced feeling of solidity at an irregular surface thereof, and has enhanced contaminant resistance properties and environmental friendliness, thereby satisfying requirements for aesthetic design and functionality of products.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: July 17, 2007
    Assignee: Union Steel Manufacturing Co., Ltd.
    Inventors: Jang Hyun Choi, Sung Su Jun, Sang Hoon Park, Won Young Lee, Byung Hak Lee
  • Publication number: 20050019600
    Abstract: Disclosed herein is a highly weather resistant colored steel plate which comprises a steel plate as a substrate, a zinc- or zinc alloy-plated layer formed on the steel plate, a layer formed on the zinc- or zinc alloy-plated layer and pretreated with chromate or non-chromate, and a highly weather resistant film formed on the chromate or non-chromate layer, wherein the highly weather resistant film includes a polyester-based primer coated onto the chromate or non-chromate layer and a polyester top coat coated onto the polyester-based primer, the top coat being produced from a mixture of a main resin obtained by reacting an oil-free polyester-modified resin and a polyisocyanate compound, a melamine resin as a crosslinking agent, and other additives.
    Type: Application
    Filed: August 20, 2004
    Publication date: January 27, 2005
    Applicant: UNION STEEL MANUFACTURING CO., LTD.
    Inventors: Jang Hyun Choi, Sung Su Jun, Woon Young Lee, Sung Kwon An
  • Publication number: 20040058187
    Abstract: Disclosed-herein is a highly weather resistant colored steel plate which comprises a steel plate as a substrate, a zinc- or zinc alloy-plated layer formed on the steel plate, a layer formed on the zinc- or zinc alloy-plated layer and pretreated with chromate or non-chromate, and a highly weather resistant film formed on the chromate or non-chromate layer, wherein the highly weather resistant film includes a polyester-based primer coated onto the chromate or non-chromate layer and a polyester top coat coated onto the polyester-based primer, the top coat being produced from a mixture of a main resin obtained by reacting an oil-free polyester-modified resin and a polyisocyanate compound, a melamine resin as a crosslinking agent, and other additives.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 25, 2004
    Applicant: UNION STEEL MANUFACTURING CO., LTD.
    Inventors: Jang Hyun Choi, Sung Su Jun, Woon Young Lee, Sung Kwon An