Patents by Inventor Young-Jin KO

Young-Jin KO 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: 20210140979
    Abstract: A method of diagnosing a periodontal condition using a protein showing a concentration difference between periodontal tissue in a normal condition and an abnormal condition from a subject's saliva is provided. According to this non-invasive method, the patient himself is able to check the presence of periodontal disease and identify the time to receive a treatment at an early stage, which will allow the patient to save time and cost for the treatment of periodontitis.
    Type: Application
    Filed: November 11, 2020
    Publication date: May 13, 2021
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Suk JI, Young Kyung KO, Joo Cheol PARK, Man Bock GU, Seong Min BAK, Eun Mi LEE, Yea Jin LEE, Geum Bit HWANG, Bang Hyun LEE
  • Publication number: 20200377915
    Abstract: Disclosed are recombinant strain of a genus Corynebacterium capable of producing biliverdin IX-alpha (IX?) and a method of producing biliverdin IX-alpha using the same. The recombinant strain is capable of synthesizing biliverdin IX-alpha in an environmentally friendly manner using only glucose without the addition of any nitrogen source, thus replacing the synthesis of biliverdin IX-alpha through chemical treatment, which is a conventional synthetic method causing environmental pollution problems.
    Type: Application
    Filed: April 15, 2020
    Publication date: December 3, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Sung Ok HAN, Jiho SEOK, Young-jin KO
  • Publication number: 20200291379
    Abstract: The present invention relates to an enzym complex in which a heme polymerase and a heme ligase are linked to each other via the dockerin module of cellulas, and to a method for producing a hemozoin using the same. The enzyme complex according to the present invention can polymerize heme with higher efficiency than conventional enzymes, and thus can more efficiently produce hemozoin, a conductive biopolymer.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 17, 2020
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sung Ok HAN, Jeong-Eun HYEON, Young-jin KO
  • Publication number: 20200270658
    Abstract: The present invention relates to a recombinant microorganism having an enhanced ability to produce heme, coproporphyrin III (Copro III), and uroporphyrin III (Uro III), and a method for producing heme, coproporphyrin III, and uroporphyrin III using same. When using a recombinant microorganism incorporating a gene that codes glutamyl-tRNA reductase (HemA), glutamate-1-semialdehyde aminotransferase (HemL), and diphtheria toxin repressor (DtxR), which is a transcription factor capable of inducing the expression of genes related to heme metabolic pathways, porphyrin-based structures can be produced at high yield, and thus the method is economic.
    Type: Application
    Filed: May 18, 2018
    Publication date: August 27, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Sung Ok HAN, Young-jin KO
  • Patent number: 10697073
    Abstract: A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (HER) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: June 30, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Wook Seong Lee, Young-Jin Ko, Young Joon Baik, Jong-Keuk Park, Kyeong Seok Lee, Inho Kim, Doo Seok Jeong
  • Patent number: 10351885
    Abstract: The present invention relates to a mutant microorganism having the ability to produce 5-aminolevulinic acid, and more particularly, to a mutant microorganism having the ability to produce 5-aminolevulinic acid wherein a glutamyl-tRNA reductase-encoding gene is introduced in a glutamic acid-producing microorganism, and to a method for producing 5-aminolevulinic acid using the same. According to the present invention, 5-aminolevulinic acid that is useful in the medical or agricultural field can be produced in a significantly higher yield than that of conventional production methods.
    Type: Grant
    Filed: July 24, 2016
    Date of Patent: July 16, 2019
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sung Ok Han, Seung-Kyou You, Jeong-Eun Hyeon, Young-jin Ko
  • Publication number: 20180038003
    Abstract: A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (HER) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode.
    Type: Application
    Filed: May 30, 2017
    Publication date: February 8, 2018
    Inventors: Wook Seong LEE, Young-Jin KO, Young Joon BAIK, Jong-Keuk PARK, Kyeong Seok LEE, Inho KIM, Doo Seok JEONG