Patents by Inventor Jae Gil Choi

Jae Gil Choi 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: 20240154123
    Abstract: Disclosed are a binder composition for an all-solid-state secondary battery, including a copolymer including a conjugated diene-based monomer, an aromatic vinyl-based monomer, and an ethylenically unsaturated acid monomer, a trithiocarbonate-based compound, a mercaptan-based compound, and a solvent, wherein a weight average molecular weight (Mw) of the copolymer is 50,000 to 200,000, and a molecular weight distribution (Mw/Mn) is 1 to 5, a method of preparing the same, a slurry composition for a cathode or a solid electrolyte including the same, and a secondary battery manufactured therefrom.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 9, 2024
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Jeong Geun KIM, Jae Kon SUH, In Oh SONG, Young Gil CHOI
  • Patent number: 11976386
    Abstract: A method of preparing a carbon fiber including: preparing a precursor fiber for preparing a carbon fiber; and stabilizing the precursor fiber. The stabilization of the precursor fiber includes a first stabilization phase, a second stabilization phase, a third stabilization phase, and a fourth stabilization phase, which are set at four different temperatures between a temperature at which heat starts to be generated from the stabilization reaction of the precursor fiber and a temperature at which the generation of heat is maximized. Ozone gas is input while at least one phase of the third stabilization phase and the fourth stabilization phase is carried out.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 7, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jae Gil Choi, Ji Hye Shin, Joon Hee Cho, Su Jin Kim, Ki Hwan Kim, Il Ha Lee, Myung Su Jang
  • Publication number: 20240067613
    Abstract: A novel quinazoline compound having SOS1 inhibitory activity and uses of the quinazoline compound are disclosed. More particularly, the present invention relates to a novel quinazoline derivative compound having inhibitory activity on SOS1 binding to RAS family proteins and/or RAC1, to pharmacologically acceptable salts thereof, and to pharmaceutical compositions containing the quinazoline compound. The novel quinazoline compound has the following chemical formula 1: wherein all the variables have meaning as defined in the specification.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 29, 2024
    Applicant: HANMI PHARMACEUTICAL CO., LTD.
    Inventors: Jae Yul CHOI, Won Jeoung KIM, Ji Sook KIM, Min Jeong KIM, Won Gi PARK, Young Gil AHN, In Hwan BAE
  • Publication number: 20210108340
    Abstract: A method of preparing a carbon fiber including: preparing a precursor fiber for preparing a carbon fiber; and stabilizing the precursor fiber. The stabilization of the precursor fiber includes a first stabilization phase, a second stabilization phase, a third stabilization phase, and a fourth stabilization phase, which are set at four different temperatures between a temperature at which heat starts to be generated from the stabilization reaction of the precursor fiber and a temperature at which the generation of heat is maximized. Ozone gas is input while at least one phase of the third stabilization phase and the fourth stabilization phase is carried out.
    Type: Application
    Filed: April 23, 2019
    Publication date: April 15, 2021
    Inventors: Jae Gil CHOI, Ji Hye SHIN, Joon Hee CHO, Su Jin KIM, Ki Hwan KIM, Il Ha LEE, Myung Su JANG
  • Publication number: 20150162122
    Abstract: Provided is a surface-mount device (SMD) type inductor reducing electric contact resistance between external electrodes and a metal core of an insulating coil. The inductor includes a core formed of magnetic material, an insulating coil wound on an outer surface of the core, a mold body containing the core and the insulating coil to be embedded therein, ends of the insulating coil protruding respectively from both sides of the mold body, which are opposite to each other, the mold body formed of soft magnetic metal compact using soft magnetic metal powder, and external electrodes formed on the both sides of the mold body and electrically connected to a metal core of the protruding ends of the insulating coil. Herein, the protruding ends of the insulating coil are partially removed by physical force to expose the metal core and the external electrodes are electrically connected to the exposed metal core.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 11, 2015
    Inventors: Kee-Han Park, Jae-Gil Choi, Sun-Ki Kim
  • Publication number: 20100036882
    Abstract: The present invention relates to a SMIS system for managing systematically an implementation status of an aviation safety regulation, and more particularly, to a SMIS system for analyzing, complementing and assessing automatically an implementation status of an aviation safety regulation in own country on the basis of standards and recommended practices prescribed in the annexes for 18 fields published and managed by the International Civil Aviation.
    Type: Application
    Filed: December 15, 2006
    Publication date: February 11, 2010
    Applicant: Republic of Korea(Administration Department; The Ministry Construction and Transporation Civill
    Inventors: Sang Ho Chung, Jae Gil Choi, Man Heui Chang, Hye Jeong Kang, Gu Seul Kim