Patents by Inventor Kyu-Chan Han

Kyu-Chan 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).

  • Polyester resin, preparation method thereof, and resin molded article formed therefrom
    Patent number: 11279799
    Abstract: Provided are a polyester resin having high heat resistance and degree of crystallinity, a preparation method thereof, and a resin molded article formed therefrom, the resin molded article having superior heat resistance and mechanical strength and maintaining high transparency.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 22, 2022
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Su-Min Lee, Yoo Jin Lee, Kyu-Chan Han
  • POLYESTER RESIN, PREPARATION METHOD THEREOF, AND RESIN MOLDED ARTICLE FORMED THEREFROM
    Publication number: 20210171706
    Abstract: Provided are a polyester resin having high heat resistance and degree of crystallinity, a preparation method thereof, and a resin molded article formed therefrom, the resin molded article having superior heat resistance and mechanical strength and maintaining high transparency.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 10, 2021
    Inventors: Su-Min LEE, Yoo Jin LEE, Kyu-Chan HAN
  • Polyethylene terephthalate filament having high tenacity for industrial use
    Patent number: 7943071
    Abstract: A polyethylene terephthalate monofilament obtained by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3, which gives a stress-strain curve exhibiting an elongation of less than 2.5% at an initial stress of 2.0 g/d, with an initial modulus value of 80 to 160 g/d, an elongation of 7.5% or less in a stress range of from 2.0 g/d to 9.0 g/d, and an elongation of at least 2.0% or more in a stress range of from 10.0 g/d to the point of break, is provided.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: May 17, 2011
    Assignee: Hyosung Corporation
    Inventors: Dae-Hwan Cho, Kyu-Chan Han, Dong-Seok Shim
  • Polyethylene terephthalate filament having high tenacity for industrial use
    Publication number: 20100098945
    Abstract: A polyethylene terephthalate monofilament obtained by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3, which gives a stress-strain curve exhibiting an elongation of less than 2.5% at an initial stress of 2.0 g/d, with an initial modulus value of 80 to 160 g/d, an elongation of 7.5% or less in a stress range of from 2.0 g/d to 9.0 g/d, and an elongation of at least 2.0% or more in a stress range of from 10.0 g/d to the point of break, is provided.
    Type: Application
    Filed: November 18, 2009
    Publication date: April 22, 2010
    Applicant: HYOSUNG CORPORATION
    Inventors: Dae-Hwan Cho, Kyu-Chan Han, Dong-Seok Shim
  • Polyethylene terephthalate filament having high tenacity for industrial use
    Publication number: 20070243378
    Abstract: A polyethylene terephthalate monofilament obtained by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3, which gives a stress-strain curve exhibiting an elongation of less than 2.5% at an initial stress of 2.0 g/d, with an initial modulus value of 80 to 160 g/d, an elongation of 7.5% or less in a stress range of from 2.0 g/d to 9.0 g/d, and an elongation of at least 2.0% or more in a stress range of from 10.0 g/d to the point of break, is provided.
    Type: Application
    Filed: May 15, 2006
    Publication date: October 18, 2007
    Applicant: HYOSUNG Corporation
    Inventors: Dae-Hwan Cho, Kyu-Chan Han, Dong-Seok Shim