Patents by Inventor Joon-Koo Kang

Joon-Koo Kang 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: 9926461
    Abstract: The present invention provides a hard coating film having high hardness and excellent properties. The hard coating film has high hardness and is not easily curled.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: March 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Patent number: 9909026
    Abstract: Disclosed is a hard coating film with high impact resistance and superior physical properties, including high hardness, scratch resistance and transparency, and high processability.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: March 6, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Patent number: 9905764
    Abstract: Provided is a substrate for an organic light emitting diode including a base substrate, a high refractive scattering layer formed on the base substrate, and having a scattering particle scattering light in a high refractive material, and an adhesive layer formed between the base substrate and the high refractive scattering layer to laminate the base substrate with the high refractive scattering layer, wherein the high refractive scattering layer has a structure in which the scattering particle is immersed in the high refractive material, an average thickness of the high refractive scattering layer is smaller than an average diameter of the scattering particle, a surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has unevenness formed by the scattering particle, the opposite surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has a planarized surface, and a method for manufacturing the same.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: February 27, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yeon Keun Lee, Jae Min Moon, Joon Koo Kang, Mun Kyu Joo, Kyoung Sik Moon, Seong Su Jang
  • Patent number: 9902868
    Abstract: The present invention relates to a hard coating film, and, more particularly, to a hard coating film having hardness and excellent physical properties. According to the present invention, the hard coating film has high physical properties including hardness, scratch resistance, transparency, durability, light resistance, and light transmittance. Thus, the hard coating film can find useful applications in various fields thanks to its excellent physical properties.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: February 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Patent number: 9896597
    Abstract: A method of preparing a hard coating film by applying a first hard coating composition onto one side of a supporting substrate, performing a first photocuring by irradiating one side of the supporting substrate, applying a second hard coating composition onto the other side of the supporting substrate, performing a second photocuring by irradiating the other side of the supporting substrate which the second coating composition applied on, with ultraviolet having a first wavelength and a second wavelength longer than the first wavelength.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: February 20, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Patent number: 9896596
    Abstract: Disclosed is a plastic film exhibiting excellent physical properties including a high level of hardness, high scratch resistance, and low reflection. Exhibiting a high level of hardness, scratch resistance, impact resistance, low reflectivity, and high transparency, the plastic film can be used as a substitute for a cover plate made of glass or reinforced glass.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 20, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Soon Hwa Jung, Boo Kyung Kim, Seok Hoon Jang, Joon Koo Kang, Jae Hoon Shim, Seung Jung Lee, Yeong Rae Chang, Sung Don Hong
  • Patent number: 9884977
    Abstract: The present invention relates to a hard coating composition, and, more particularly, to a hard coating composition used in forming a hard coating film exhibiting high hardness and excellent properties. The hard coating composition can be used to form a high-hardness hard coating film that is not easily curled.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: February 6, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Patent number: 9850397
    Abstract: The present invention relates to a plastic film. More particularly, the present invention relates to a plastic film which exhibits high hardness, self-healing property and excellent processability. The plastic film of the present invention exhibits high hardness, self-healing property, scratch resistance, high transparency, durability, light resistance, light transmittance or the like, and thus can be applied to various fields.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: December 26, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Sung Don Hong, Heon Kim, Hye Min Kim
  • Patent number: 9783698
    Abstract: Disclosed is a hard coating film with high physical properties including hardness, scratch resistance, impact resistance, transparency, durability, light resistance, and light transmittance. The hard coating film can find useful applications in various fields thanks to its excellent physical properties.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 10, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Patent number: 9778398
    Abstract: The present invention relates to a hard coating film and a preparation method thereof, and, more particularly, to a hard coating film having high hardness and excellent properties and a method of preparing the same. The method is advantageous in that a high-hardness hard coating film, which is not easily curled, can be easily prepared. The hard coating film prepared by this method can be usefully used in various fields because it has high hardness, scratch resistance, transparency, durability, light resistance, light transmittance and the like.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 3, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Eun Kyu Her, Yeong Rae Chang, Soon Hwa Jung, Jin Young Park, Hyeok Jeong
  • Patent number: 9777186
    Abstract: The present invention relates to a hard coating film, and, more particularly, to a hard coating film having hardness and excellent physical properties without a supporting substrate. According to the present invention, the hard coating film has high physical properties including hardness, scratch resistance, transparency, durability, light resistance, and light transmittance. Thus, the hard coating film can find useful applications in various fields thanks to its excellent physical properties.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 3, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Patent number: 9765234
    Abstract: Disclosed herein is a laminated hard coating film, which exhibits high hardness and excellent properties without a supporting substrate. The laminated hard coating film can find useful applications in various fields thanks to its excellent hardness, scratch resistance, transparency, durability, light resistance, light transmittance, and the like.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: September 19, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Patent number: 9738809
    Abstract: The present invention relates to a coating layer for an anti-glare film that can prevent glaring by reflection of external light on a surface of a display and an anti-glare film comprising the same. The coating layer for an anti-glare film according to an exemplary embodiment of the present invention comprises a binder resin, organic particulates, and inorganic particulates, and differences differences between refractive indexes of the binder resin and the organic particulates and between refractive indexes of the binder resin and inorganic particulates are each 0.3 or less. The coating layer for an anti-glare film according to an exemplary embodiment of the present invention can provide an anti-glare film having excellent anti-glare property, distinctness-of-image, and contrast, such that the coating layer can be applied to a display having high resolution, and has excellent scratch resistance in terms of a coating thickness of a thin film, such that it is easy to enlarge a polarizing plate.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 22, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jae-Hoon Shim, Joon-Koo Kang, Jae-Pil Koo, Yeong-Rae Chang
  • Patent number: 9701861
    Abstract: Disclosed is a plastic film which exhibits high hardness and processability without the problems of curling, warping and cracking.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 11, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Heon Kim, Han Na Lee
  • Patent number: 9701862
    Abstract: A method of preparing a hard coating film by applying a hard coating composition onto both sides of a supporting substrate, thereby forming a hard coating layer on each side of the supporting substrate, the hard coating composition comprising a binder including a tri- to hexa-functional acrylate-based monomer, inorganic particles and a photoinitiator; and irradiating the applied hard coating layers with ultraviolet to simultaneously photocure the hard coating layers, wherein the hard coating film has a pencil hardness of 7H or more under a load of 1 kg, and properties such that when the hard coating film is exposed to a temperature of 50 to 90° C. and a humidity of 80 to 90% for 70 to 100 hours and then placed on a plane, the maximum distance at which each edge of the hard coating film is spaced apart from the plane is 1.0 mm or less.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: July 11, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Sung Don Hong, Soon Hwa Jung, Eun Kyu Her
  • Patent number: 9567479
    Abstract: The present invention relates to a hard coating film, and, more particularly, to a hard coating film having hardness and excellent physical properties. According to the present invention, the hard coating film has high physical properties including hardness, scratch resistance, transparency, durability, light resistance, and light transmittance. Thus, the hard coating film can find useful applications in various fields thanks to its excellent physical properties.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: February 14, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Eun-Kyu Her, Soon-Hwa Jung, Yeong-Rae Chang, Hyeok Jeong
  • Patent number: 9529122
    Abstract: The present invention relates to a polarizing plate including a hard coating film, and, more particularly, to a polarizing plate including a hard coating film which exhibits high hardness and superior physical properties. The polarizing plate according to the present invention is high in hardness, scratch resistance, durability, light resistance, and light transmittance and can thus be efficiently utilized in a variety of fields.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: December 27, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Patent number: 9482789
    Abstract: The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 1, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Publication number: 20160304737
    Abstract: The present invention relates to a hard coating composition, and, more particularly, to a hard coating composition used in forming a hard coating film exhibiting high hardness and excellent properties. The hard coating composition can be used to form a high-hardness hard coating film that is not easily curled.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo KANG, Yeong Rae CHANG, Jae Hoon SHIM, Sung Don HONG, Seung Jung LEE
  • Publication number: 20160306452
    Abstract: The present invention relates to an electronic board comprising a display panel; a polarizing plate disposed on the display panel, and including a polarizer and a high hardness plastic film integrated with each other; and a touch sensor recognizing input information through the contact of a user.
    Type: Application
    Filed: February 17, 2015
    Publication date: October 20, 2016
    Inventors: Soon Hwa JUNG, Kyung Ki HONG, Yeong Rae CHANG, Jin Young PARK, Joon Koo KANG, Hyeok JEONG, Eun Kyu HER