Patents by Inventor Do-Kwang Cho

Do-Kwang Cho 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: 20240059935
    Abstract: The present invention relates to a photocurable adhesive film and a preparation method thereof, and provides an adhesive film having excellent peeling adhesion and creep resistance at both room temperature and high temperature and a low modulus at a low temperature of ?20° C. by using an acrylic monomer having a specific structure in a specific content range. Furthermore, since the adhesive film of the present invention may provide folding reliability and stability of a display device, the adhesive film can be usefully applied as an adhesive of a display device, particularly, a foldable display device field.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 22, 2024
    Inventors: Seongwoo Kim, Do-Kwang Cho, Youhoon Kim
  • Patent number: 11059999
    Abstract: The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: July 13, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Seongwoo Kim, Yong Seok Seo, Do-Kwang Cho, You Hoon Kim, Andrew Satrijo, Ross J. DeVolder
  • Patent number: 10640684
    Abstract: Provided is a double coated tape with improved reworkable capability, in which a first adhesive layer, a film carrier layer, a foam carrier layer, and a second adhesive layer are sequentially stacked, and which includes a thermoplastic polyurethane (TPU) film located between the foam carrier layer and the second adhesive layer. Since the double coated tape is used for bonding of an LCD panel to a frame, while providing improved light leakage performance and reworkable capability, the double coated tape is advantageously used when manufacturing an electronic appliance such as a television, a cellular phone, and a computer.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Ha-Young Lee, Do-Kwang Cho
  • Publication number: 20190292411
    Abstract: The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 26, 2019
    Inventors: Seongwoo Kim, Yong Seok Seo, Do-Kwang Cho, You Hoon Kim, Andrew Satrijo, Ross J. DeVolder
  • Publication number: 20180051189
    Abstract: The present invention relates to a double-sided tape, an electronic device including the same, and a method of preparing the double-sided tape. According to one aspect, the present invention provides a double-sided tape that contains, in order, a first adhesive layer, one or more film carrier layers, and a second adhesive layer, and a core adhesive layer between the first adhesive layer and the second adhesive layer.
    Type: Application
    Filed: March 22, 2016
    Publication date: February 22, 2018
    Inventors: Do-Kwang Cho, You-Hoon Kim, Yong-Seok Seo
  • Publication number: 20160264827
    Abstract: Provided is a double coated tape with improved reworkable capability, in which a first adhesive layer, a film carrier layer, a foam carrier layer, and a second adhesive layer are sequentially stacked, and which includes a thermoplastic polyurethane (TPU) film located between the foam carrier layer and the second adhesive layer. Since the double coated tape is used for bonding of an LCD panel to a frame, while providing improved light leakage performance and reworkable capability, the double coated tape is advantageously used when manufacturing an electronic appliance such as a television, a cellular phone, and a computer.
    Type: Application
    Filed: November 25, 2014
    Publication date: September 15, 2016
    Inventors: Ha-Young Lee, Do-Kwang Cho
  • Publication number: 20110228460
    Abstract: Disclosed is a gasket comprising a support layer; a blocking pad layer laminated on one side of the support layer and made of an acrylic polymer resin composition; and an adhesive layer laminated on the other side of the support layer and made of an adhesive polymer resin. The acrylic polymer resin composition comprises a urethane acrylate oligomer; a first acrylic monomer; a second acrylic monomer having a higher glass transition temperature than the first acrylic monomer; and a filler.
    Type: Application
    Filed: September 17, 2009
    Publication date: September 22, 2011
    Inventors: You-Hoon Kim, Ha-Young Lee, Sung-Won Ha, Do-Kwang Cho