Patents by Inventor Kyung-Pyo YU

Kyung-Pyo YU 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).

  • Ink composition for steel material, having excellent adhesion, method for manufacturing printed steel sheet by using same, and printed steel sheet manufactured thereby
    Patent number: 10696858
    Abstract: An ink composition for a printed steel sheet, having excellent adhesion to a steel sheet, processability, solvent resistance, and the like, a method for manufacturing a printed steel sheet using the same, and a printed steel sheet manufactured thereby, are provided. The ink composition for a steel material includes 10 to 30 parts by weight of a mixture of a urethane acrylate oligomer and another type of acrylate oligomer different from the urethane acrylate oligomer, 65 to 80 parts by weight of a radiation curable monomer which is a mixture of a monofunctional radiation curable monomer and a di- or more functional radiation curable monomer, 1 to 10 parts by weight of a photoinitiator, and 0.01 to 10 parts by weight of an adhesion promoter.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 30, 2020
    Assignees: POSCO, INKTEC CO., LTD.
    Inventors: Ha-Na Choi, Kyung-Pyo Yu, Jin-Tae Kim, Chan-Hee Park, Jung-Hwan Lee, Yon-Kyun Song
  • INK COMPOSITION FOR STEEL MATERIAL, HAVING EXCELLENT ADHESION, METHOD FOR MANUFACTURING PRINTED STEEL SHEET BY USING SAME, AND PRINTED STEEL SHEET MANUFACTURED THEREBY
    Publication number: 20190002718
    Abstract: An ink composition for a printed steel sheet, having excellent adhesion to a steel sheet, processability, solvent resistance, and the like, a method for manufacturing a printed steel sheet using the same, and a printed steel sheet manufactured thereby, are provided. The ink composition for a steel material includes 10 to 30 parts by weight of a mixture of a urethane acrylate oligomer and another type of acrylate oligomer different from the urethane acrylate oligomer, 65 to 80 parts by weight of a radiation curable monomer which is a mixture of a monofunctional radiation curable monomer and a di- or more functional radiation curable monomer, 1 to 10 parts by weight of a photoinitiator, and 0.01 to 10 parts by weight of an adhesion promoter.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 3, 2019
    Inventors: Ha-Na CHOI, Kyung-Pyo YU, Jin-Tae KIM, Chan-Hee PARK, Jung-Hwan LEE, Yon-Kyun SONG