Patents by Inventor Soonhwa Jung

Soonhwa Jung 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: 20240093002
    Abstract: This invention relates to a curable composition for forming high refractive index optical material and optical material comprising the same, and more specifically, to a curable composition for forming high refractive index optical material comprising an episulfide compound and a sulfur-containing polymer compound, and optical material comprising the same.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 21, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Soonhwa JUNG, Jeewoo LIM, Yeongrae CHANG, Jisung CHOI
  • Publication number: 20230142827
    Abstract: The present invention relates to a photopolymer composition for hologram formation, comprising: a polymer matrix comprising a siloxane-based polymer and a (meth)acrylate polymer containing one or more reactive functional groups in the side chains, a holographic recording method, and an optical element.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 11, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Inkyu LEE, Soonhwa JUNG, Chulsuk HONG, Yeongrae CHANG, Yeonhui YI
  • Publication number: 20220315707
    Abstract: A diffraction light guide plate comprising an optical layer having diffraction lattice pattern formed as an integrated structure without an interface on one surface thereof, where the optical layer having diffraction lattice pattern is a continuous phase of polymer comprising an episulfide compound, a thiol compound, and an aromatic cyclic compound having two or more hydroxyl groups, the diffraction light guide plate having excellent thickness uniformity and flatness as well as low haze and excellent visibility, and excellent mechanical properties such as pencil hardness and strength, and a method for manufacturing the diffraction light guide plate.
    Type: Application
    Filed: August 13, 2020
    Publication date: October 6, 2022
    Inventors: Jaeyoung Kim, Hee Jung Choi, Yeongrae Chang, Heon Kim, Hye Min Kim, Youngsuk Kim, Soonhwa Jung
  • Publication number: 20220204767
    Abstract: A curable composition for forming a high refractive index optical material, the curable composition including an episulfide compound, a thiol compound and an aromatic ring compound containing two or more hydroxyl groups, and an optical material including a cured product of the curable composition.
    Type: Application
    Filed: May 21, 2020
    Publication date: June 30, 2022
    Inventors: Hee Jung Choi, Yeongrae Chang, Heon Kim, Hye Min Kim, Youngsuk Kim, Jaeyoung Kim, Soonhwa Jung
  • Publication number: 20210355280
    Abstract: A curable composition and an optical element including a cured product thereof. The curable composition includes an episulfide compound and an aromatic heterocyclic compound.
    Type: Application
    Filed: November 5, 2019
    Publication date: November 18, 2021
    Inventors: Hee Jung CHOI, Youngsuk KIM, Soonhwa JUNG, Yeongrae CHANG, Hye Min KIM
  • Publication number: 20210294041
    Abstract: A diffraction light guide plate having excellent thickness uniformity and flatness, and having low haze, and excellent mechanical properties such as pencil hardness and strength at the same time, and a method for manufacturing the diffraction light guide plate.
    Type: Application
    Filed: April 20, 2020
    Publication date: September 23, 2021
    Inventors: Jaeyoung Kim, Youngsuk Kim, Soonhwa Jung, Yeongrae Chang
  • Publication number: 20210116609
    Abstract: The present invention relates to an optical laminate including: a substrate; and a hard coating layer formed on at least one surface of the substrate and containing a binder resin and two or more types of inorganic particles having different average radii, wherein a domain formed by surrounding two or more first inorganic particles by two or more second inorganic particles is formed in the hard coating layer, and wherein the first inorganic particles and the second inorganic particles are different components from each other, and a display device including the optical laminate.
    Type: Application
    Filed: June 27, 2019
    Publication date: April 22, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jinkuk LEE, Changjong KIM, Soonhwa JUNG, Yeongrae CHANG, Jin Young PARK, Hye Min KIM
  • Publication number: 20200392306
    Abstract: The present invention relates to an optical laminate including: a substrate; and a hard coating layer formed on at least one surface of the substrate and containing a binder resin and two or more groups of inorganic particles having different average radii, wherein a domain formed by surrounding two or more first inorganic particles having an average radius of 10 to 15 nm by two or more second inorganic particles having an average radius of 20 to 35 nm is formed in the hard coating layer, and a display device including the optical laminate.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 17, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jinkuk LEE, Changjong KIM, Soonhwa JUNG, Yeongrae CHANG, Jin Young PARK, Hye Min KIM
  • Patent number: 7749461
    Abstract: An apparatus for converting gas using gliding plasma. The apparatus includes: a reaction chamber; an electrode member inside the reaction chamber and insulated from the reaction chamber; a power source applying electricity to the reaction chamber and the electrode member; a magnetic field generating unit installed outside the reaction chamber to rotate plasma induced inside the reaction chamber in a circumferential direction of the electrode member for forming a plasma region; and a gas supplying unit supplying material gas into the reaction chamber to allow the material gas to pass through the plasma region for converting the material gas into a different gas by energy received from the plasma. In the gas conversion apparatus, the plasma region can be widely formed in the reaction chamber to increase gas conversion rate.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Soonhwa Jung, Gyeayoung Kwak, Ju Hwa Cheong, Wonho Lee
  • Publication number: 20070120495
    Abstract: An apparatus for converting gas using gliding plasma. The apparatus includes: a reaction chamber; an electrode member inside the reaction chamber and insulated from the reaction chamber; a power source applying electricity to the reaction chamber and the electrode member; a magnetic field generating unit installed outside the reaction chamber to rotate plasma induced inside the reaction chamber in a circumferential direction of the electrode member for forming a plasma region; and a gas supplying unit supplying material gas into the reaction chamber to allow the material gas to pass through the plasma region for converting the material gas into a different gas by energy received from the plasma. In the gas conversion apparatus, the plasma region can be widely formed in the reaction chamber to increase gas conversion rate.
    Type: Application
    Filed: June 22, 2006
    Publication date: May 31, 2007
    Inventors: Soonhwa Jung, Gyeayoung Kwak, Ju Cheong, Wonho Lee