Patents by Inventor Woo-Gi Shin

Woo-Gi Shin 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: 9728332
    Abstract: A wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod and the steel wire can be used in transformers, vehicles, electric or electronic products, or the like which require low iron loss and high permeability. Provided are a wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod or the steel wire comprises, by wt %, 0.03 to 0.05% of C, 3.0 to 5.0% of Si, 0.1 to 2.0% of Mn, 0.02 to 0.08% of Al, 0.0015 to 0.0030% of N, and the remainder being Fe and unavoidable impurities. The wire rod and steel wire having directional properties may be provided by a general manufacturing process without using expensive alloying elements and without having to add a manufacturing facility.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: August 8, 2017
    Assignee: POSCO
    Inventors: Dong-Hyun Kim, You-Hwan Lee, Woo-Gi Shin
  • Patent number: 9322075
    Abstract: Provided is an ultra-fine grained, high-strength, high-toughness carbon steel wire rod manufactured through control of a microstructure by process control without addition of relatively expensive alloying elements. More particularly, the material provided is an ultra-fine grained, high-strength, high-toughness carbon steel wire rod having a microstructure including a ferrite structure having an area fraction of 60% or more and a cementite structure as a remainder, wherein an average grain diameter of ferrite grains is 15 ?m or less. Also provided is a method of manufacturing the wire rod.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 26, 2016
    Assignee: POSCO
    Inventors: Dong-Hyun Kim, Woo-Gi Shin, You-Hwan Lee
  • Publication number: 20130189148
    Abstract: A wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod and the steel wire can be used in transformers, vehicles, electric or electronic products, or the like which require low iron loss and high permeability. Provided are a wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod or the steel wire comprises, by wt %, 0.03 to 0.05% of C, 3.0 to 5.0% of Si, 0.1 to 2.0% of Mn, 0.02 to 0.08% of Al, 0.0015 to 0.0030% of N, and the remainder being Fe and unavoidable impurities. The wire rod and steel wire having directional properties may be provided by a general manufacturing process without using expensive alloying elements and without having to add a manufacturing facility.
    Type: Application
    Filed: November 9, 2011
    Publication date: July 25, 2013
    Applicant: POSCO
    Inventors: Dong-Hyun Kim, You-Hwan Lee, Woo-Gi Shin
  • Publication number: 20130048159
    Abstract: Provided is an ultra-fine grained, high-strength, high-toughness carbon steel wire rod manufactured through control of a microstructure by process control without addition of relatively expensive alloying elements. More particularly, the material provided is an ultra-fine grained, high-strength, high-toughness carbon steel wire rod having a microstructure including a ferrite structure having an area fraction of 60% or more and a cementite structure as a remainder, wherein an average grain diameter of ferrite grains is 15 ?m or less. Also provided is a method of manufacturing the wire rod.
    Type: Application
    Filed: May 6, 2011
    Publication date: February 28, 2013
    Applicant: POSCO
    Inventors: Dong-Hyun Kim, Woo-Gi Shin, You-Hwan Lee