Patents by Inventor Ki-Seung Seo

Ki-Seung Seo 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: 11674061
    Abstract: A substrate-free adhesive tape that is excellent in adhesive physical properties and is suitable for a continuous process is provided. The substrate-free adhesive tape includes a release film, and an adhesive layer provided on one surface of the release film and the adhesive layer containing a cured product of an adhesive composition, wherein when the release film is fixed on the outer surface of a semicircular tip part of a jig, the semicircular tip part having a radius of 22.5 mm, a breaking distance of the adhesive layer is 110 mm or less when the adhesive layer is stretched at a rate of 20 m/min from a semicircular center of the semicircular tip part toward an outermost direction of the semicircular tip part.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: June 13, 2023
    Inventors: Ki Seung Seo, Ji Hye Kim, Sang Hwan Kim, Jun Hyoung Park, Kyung Jun Yoon
  • Publication number: 20230151123
    Abstract: The present disclosure provides a photocurable composition, which has excellent coatability and is capable of providing a coating layer having excellent surface quality and thickness uniformity, a coating layer including a cured product of the photocurable composition, and a substrate for a semiconductor process including the coating layer.
    Type: Application
    Filed: July 22, 2021
    Publication date: May 18, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Sang Hwan KIM, Jung Woo CHOI, Ki Seung SEO, Kwang Su SEO, Jun Beom PARK, Won Seup CHO
  • Patent number: 11427736
    Abstract: Provided is a substrate-free transfer tape including: a release liner including a heavy peel surface and a light peel surface; and a transfer film layer provided on the heavy peel surface, in which release peel force between the heavy peel surface and the transfer film layer is from 10 g/in to 70 g/in or less at the time of peeling the transfer film layer at a rate of 3 m/min.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: August 30, 2022
    Inventors: Ji Hye Kim, Ki Seung Seo, Jun Hyoung Park, Jang Soon Kim, Kyung Jun Yoon
  • Publication number: 20210214591
    Abstract: A substrate-free adhesive tape which is easily applied to a continuous process due to an excellent adhesive strength and a short fracture distance is provided. An adhesive composition for making the substrate-free adhesive tape is also provided.
    Type: Application
    Filed: July 11, 2019
    Publication date: July 15, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Sang Hwan Kim, Ki Seung Seo, Ji Hye Kim, Kyung Jun Yoon, Kwang Su Seo
  • Publication number: 20210002524
    Abstract: A substrate-free adhesive tape that is excellent in adhesive physical properties and is suitable for a continuous process is provided. The substrate-free adhesive tape includes a release film, and an adhesive layer provided on one surface of the release film and the adhesive layer containing a cured product of an adhesive composition, wherein when the release film is fixed on the outer surface of a semicircular tip part of a jig, the semicircular tip part having a radius of 22.5 mm, a breaking distance of the adhesive layer is 110 mm or less when the adhesive layer is stretched at a rate of 20 m/min from a semicircular center of the semicircular tip part toward an outermost direction of the semicircular tip part.
    Type: Application
    Filed: August 6, 2019
    Publication date: January 7, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Ki Seung Seo, Ji Hye Kim, Sang Hwan Kim, Jun Hyoung Park, Kyung Jun Yoon
  • Publication number: 20190382624
    Abstract: Provided is a substrate-free transfer tape including: a release liner including a heavy peel surface and a light peel surface; and a transfer film layer provided on the heavy peel surface, in which release peel force between the heavy peel surface and the transfer film layer is 10 g/in or more and 70 g/in or less at the time of peeling the transfer film layer at a rate of 3 m/min.
    Type: Application
    Filed: February 9, 2018
    Publication date: December 19, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hye Kim, Ki Seung Seo, Jun Hyoung Park, Jang Soon Kim, Kyung Jun Yoon
  • Publication number: 20180117885
    Abstract: Provided are a double-sided adhesive tape for a display and a manufacturing method therefor, the double-sided adhesive tape sequentially including: a first acrylic adhesive layer; an acrylic foaming layer; a thermoplastic film layer having a black layer laminated on at least one surface thereof; and a second acrylic adhesive layer.
    Type: Application
    Filed: March 22, 2016
    Publication date: May 3, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Ji-Hye Kim, Hong-June Choi, Joon-Seung Lee, Jang-Soon Kim, Woo-Joo Han, Ki-Seung Seo