Patents by Inventor Won-Seog Bong

Won-Seog Bong 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: 11807922
    Abstract: An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 7, 2023
    Assignee: POSCO CO., LTD
    Inventors: Jung-Woo Kim, Bongwoo Ha, Taeyoung No, Won-Seog Bong
  • Patent number: 11505723
    Abstract: The present invention has been made in an effort to provide an adhesive coating composition capable of adhering (fastening) a non-oriented electrical steel sheet without using a conventional fastening method such as welding, clamping, or interlocking, a non-oriented electrical steel sheet stack to which the same is applied, and a manufacturing method thereof. According to an exemplary embodiment of the present invention, an adhesive coating composition includes: 40 to 99 wt % of a first component containing a water-soluble resin; and 1 to 60 wt % of a second component containing a composite metal phosphate.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 22, 2022
    Assignee: POSCO
    Inventors: Jung-Woo Kim, Bongwoo Ha, Changhoon Choi, Taeyoung No, Heon-Jo Choi, Won-Seog Bong
  • Publication number: 20200087760
    Abstract: An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.
    Type: Application
    Filed: December 21, 2017
    Publication date: March 19, 2020
    Applicant: POSCO
    Inventors: Jung-Woo Kim, Bongwoo Ha, Taeyoung No, Won-Seog Bong
  • Publication number: 20200087549
    Abstract: The present invention has been made in an effort to provide an adhesive coating composition capable of adhering (fastening) a non-oriented electrical steel sheet without using a conventional fastening method such as welding, clamping, or interlocking, a non-oriented electrical steel sheet stack to which the same is applied, and a manufacturing method thereof. According to an exemplary embodiment of the present invention, an adhesive coating composition includes: 40 to 99 wt % of a first component containing a water-soluble resin; and 1 to 60 wt % of a second component containing a composite metal phosphate.
    Type: Application
    Filed: December 22, 2017
    Publication date: March 19, 2020
    Inventors: Jung-Woo KIM, Bongwoo HA, Changhoon CHOI, Taeyoung NO, Heon-Jo CHOI, Won-Seog BONG
  • Patent number: 10265795
    Abstract: There are provided a method for manufacturing an electrical steel sheet laminated core having reduced core loss and improved strength, and a laminated core produced by the manufacturing method. The method includes: stacking electrical steel sheets to obtain a lamination; and welding an outer surface of the lamination, wherein during the welding, a welding wire having a resistivity of 6.5×10?7 ?m or greater, a relative permeability of less than 1.02, and a melting point lower than that of the electrical steel sheets is used as a welding material.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: April 23, 2019
    Assignee: POSCO
    Inventors: Sang-Ho Uhm, Chung-Ha Kim, Ji-Hyun Kim, Won-Seog Bong
  • Publication number: 20180223400
    Abstract: A non-oriented electrical steel sheet having outstanding magnetic properties and i, as percentages by weight, from 0.7˜3.02.5% of Al, 0.2˜32.5% of Si, 0.2˜2.01.5% of Mn, 0.001 0005˜0.004% of N, 0.0005˜0.004% of S, 0.003% or less of C, and a balance of Fe and other unavoidably incorporated impurities, wherein the Al, Mn, N and S are included so as to satisfy the compositional formulae 1?{[Al]+[Mn]}?3.5, 0.002?{[N]+[S]}?0.006, 300250?{([Al]+[Mn])/([N]+[S])}?1,400, 1.4?{[Al]+[Si]+[Mn]/2}?5.5, 1 [Al]/[Si]?7.5, 1?[Al]/[Mn]?3.7; and a production method therefor. By optimising the Al, Si, Mn, N and S added components, the distribution density of coarse inclusions is increased, thereby improving the crystal-grain growth properties and domain wall motility and producing the highest grade of non-oriented electrical steel sheet having superior magnetic properties, low hardness, and superior customer workability and productivity.
    Type: Application
    Filed: April 6, 2018
    Publication date: August 9, 2018
    Inventors: Jae-Hoon Kim, Jae-Kwan Kim, Yong-Soo Kim, Won-Seog Bong
  • Publication number: 20160121421
    Abstract: There are provided a method for manufacturing an electrical steel sheet laminated core having reduced core loss and improved strength, and a laminated core produced by the manufacturing method. The method includes: stacking electrical steel sheets to obtain a lamination; and welding an outer surface of the lamination, wherein during the welding, a welding wire having a resistivity of 6.5×10?7 ?m or greater, a relative permeability of less than 1.02, and a melting point lower than that of the electrical steel sheets is used as a welding material.
    Type: Application
    Filed: December 24, 2013
    Publication date: May 5, 2016
    Inventors: Sang-Ho UHM, Chung-Ha KIM, Ji-Hyun KIM, Won-Seog BONG
  • Publication number: 20120267015
    Abstract: Provided are: a non-oriented electrical steel sheet having outstanding magnetic properties and comprising, as percentages by weight, from 1.0 to 3.0% of Al, from 0.5 to 2.5% of Si, from 0.5 to 2.0% of Mn, from 0.001 to 0.004% of N, from 0.0005 to 0.004% of S and a balance of Fe and other unavoidably incorporated impurities, wherein the Al, Mn, N and S are included so as to satisfy the compositional formulae {[Al]+[Mn]}?3.5, 0.002?{[N]+[S]}?0.006, 300?{([Al]+[Mn])/([N]+[S])}?1,400; and a production method therefor. By optimising the Al, Si, Mn, N and S added components in this way, the distribution density of coarse inclusions is increased, thereby making it possible to improve crystal-grain growth properties and domain wall mobility and so produce the highest grade of non-oriented electrical steel sheet having superior magnetic properties, low hardness, and superior customer workability and productivity.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 25, 2012
    Applicant: POSCO
    Inventors: Jae-Hoon Kim, Jae-Kwan Kim, Yong-Soo Kim, Won-Seog Bong