Patents by Inventor Bongwoo Ha

Bongwoo Ha 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).

  • Publication number: 20200362202
    Abstract: An electrical steel sheet adhesive coating composition according to an exemplary embodiment of the present invention includes, based on 100 wt % of the total solids: a resin at 20 to 40 wt % and having an average particle diameter of 10 to 300 nm; an inorganic nanoparticle at 10 to 35 wt % bonded with the resin; a metal phosphoric acid salt at 10 to 30 wt %; and phosphoric acid at 10 to 40 wt %. An electrical steel sheet product according to an exemplary embodiment of the present invention includes a plurality of electrical steel sheets; and an adhesive layer disposed between the plurality of electrical steel sheets, wherein the adhesive layer includes a metal of one or more kinds among Al, Mg, Ca, Co, Zn, Zr, and Fe at 0.5 to 30 wt %, N at 0.1 to 10 wt %, C at 0.1 to 5 wt %, P at 1 to 30 wt %, a metal of one or more kinds among Si and Ti at 10 to 30 wt %, and a balance of O.
    Type: Application
    Filed: December 17, 2018
    Publication date: November 19, 2020
    Inventors: Bongwoo HA, Jung-Woo KIM, Taeyoung NO
  • 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: 9481936
    Abstract: A platelet-type zirconium phosphate, which has a P—OH group contained in a structure thereof, and has a crystalline peak at a 2? value of 11.6±2 degrees and no crystalline peak at a 2? value of less than 11.6±2 degrees in X-ray diffraction analysis, is provided. The platelet-type zirconium phosphate has a platelet-type structure and can be uniformly dispersed at a nanoscale level in a coating film to exhibit excellent surface gloss and barrier capability. Also, the platelet-type zirconium phosphate can exhibit excellent corrosion resistance due to the presence of the P—OH group on a surface thereof, and can be dispersed not only in an aqueous solution but also in an organic solvent.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: November 1, 2016
    Assignee: POSCO
    Inventors: Bongwoo Ha, Jin Tae Kim, Jong Sang Kim, Yang-Ho Choi
  • Publication number: 20160244886
    Abstract: A platelet-type zirconium phosphate, which has a P—OH group contained in a structure thereof, and has a crystalline peak at a 2? value of 11.6±2 degrees and no crystalline peak at a 2? value of less than 11.6±2 degrees in X-ray diffraction analysis, is provided. The platelet-type zirconium phosphate has a platelet-type structure and can be uniformly dispersed at a nanoscale level in a coating film to exhibit excellent surface gloss and barrier capability. Also, the platelet-type zirconium phosphate can exhibit excellent corrosion resistance due to the presence of the P—OH group on a surface thereof, and can be dispersed not only in an aqueous solution but also in an organic solvent.
    Type: Application
    Filed: May 4, 2016
    Publication date: August 25, 2016
    Inventors: Bongwoo Ha, Jin Tae Kim, Jong Sang Kim, Yang-Ho Choi
  • Publication number: 20130330539
    Abstract: A platelet-type zirconium phosphate, which has a P—OH group contained in a structure thereof, and has a crystalline peak at a 2? value of 11.6±2 degrees and no crystalline peak at a 2? value of less than 11.6±2 degrees in X-ray diffraction analysis, is provided. The platelet-type zirconium phosphate has a platelet-type structure and can be uniformly dispersed at a nanoscale level in a coating film to exhibit excellent surface gloss and barrier capability. Also, the platelet-type zirconium phosphate can exhibit excellent corrosion resistance due to the presence of the P—OH group on a surface thereof, and can be dispersed not only in an aqueous solution but also in an organic solvent.
    Type: Application
    Filed: December 27, 2011
    Publication date: December 12, 2013
    Applicant: POSCO
    Inventors: Bongwoo Ha, Jin Tae Kim, Jong Sang Kim, Yang-Ho Choi