Patents by Inventor Mi RYU

Mi RYU 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).

  • Microorganism of genus having enhanced L-arginine or L-citrulline productivity and a method for producing L-arginine or L-citrulline using the same
    Patent number: 12595461
    Abstract: The present disclosure relates to a Corynebacterium sp. mutant strain having increased L-arginine or L-citrulline productivity and a method of producing L-arginine or L-citrulline using the same. The Corynebacterium sp. mutant strain has enhanced activity of acetylglutamate kinase involved in the L-arginine biosynthesis pathway, and thus is capable of producing L-arginine or L-citrulline in an increased yield compared to a parent strain.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: April 7, 2026
    Assignee: DAESANG CORPORATION
    Inventors: Mi Ryu, Sun Jun Yoon, In Pyo Hong, Seok Hyun Park
  • MICROORGANISM OF CORYNEBACTERIUM GENUS HAVING ENHANCED L-ARGININE OR L-CITRULLINE PRODUCTIVITY AND A METHOD FOR PRODUCING L-ARGININE OR L-CITRULLINE USING THE SAME
    Publication number: 20260085279
    Abstract: The present disclosure relates to a Corynebacterium sp. mutant strain having increased L-arginine or L-citrulline productivity and a method of producing L-arginine or L-citrulline using the same. The Corynebacterium sp. mutant strain has enhanced activity of acetylglutamate kinase involved in the L-arginine biosynthesis pathway, and thus is capable of producing L-arginine or L-citrulline in an increased yield compared to a parent strain.
    Type: Application
    Filed: November 24, 2025
    Publication date: March 26, 2026
    Applicant: Daesang Corporation
    Inventors: Mi RYU, Sun Jun Yoon, In Pyo Hong, Seok Hyun Park
  • Microorganism of genus having enhanced L-arginine or L-citrulline productivity and a method for producing L-arginine or L-citrulline using the same
    Patent number: 12486490
    Abstract: The present disclosure relates to a Corynebacterium sp. mutant strain having increased L-arginine or L-citrulline productivity and a method of producing L-arginine or L-citrulline using the same. The Corynebacterium sp. mutant strain has enhanced activity of acetylornithine aminotransferase involved in the L-arginine biosynthesis pathway, and thus is capable of producing L-arginine or L-citrulline productivity in an increased yield compared to a parent strain.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: December 2, 2025
    Assignee: DAESANG CORPORATION
    Inventors: Mi Ryu, Sun Jun Yoon, In Pyo Hong, Seok Hyun Park
  • CORYNEBACTERIUM GLUTAMICUM VARIANT HAVING IMPROVED L-LYSINE PRODUCTION ABILITY, AND METHOD FOR PRODUCING L-LYSINE BY USING SAME
    Publication number: 20250283126
    Abstract: The present invention relates to a Corynebacterium glutamicum variant having an improved L-lysine production ability, and a method for producing L-lysine by using same. The Corynebacterium glutamicum variant increases or enhances the expression of a gene encoding diaminopimelate decarboxylase, and thus can have a L-lysine production yield superior to that of a parental strain.
    Type: Application
    Filed: April 30, 2021
    Publication date: September 11, 2025
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Mi RYU, Min Woo MOON, In Pyo HONG, Seok Hyun PARK, Joon Hyun PARK
  • CORYNEBACTERIUM GLUTAMICUM VARIANT HAVING IMPROVED L-LYSINE PRODUCTION ABILITY AND METHOD FOR PRODUCING L-LYSINE BY USING SAME
    Publication number: 20240294896
    Abstract: The present invention relates to a Corynebacterium glutamicum mutant strain having enhanced L-lysine productivity and a method of producing L-lysine using the same. The Corynebacterium glutamicum mutant strain is able to produce L-lysine in an improved yield as a result of increasing the supply of the L-lysine precursor and sugar utilization by increasing or enhancing the expression of the gene encoding enolase and/or reducing or weakening the expression of the gluconate operon transcriptional repressor.
    Type: Application
    Filed: July 29, 2022
    Publication date: September 5, 2024
    Applicant: DAESANG CORPORATION
    Inventors: Mi RYU, In Pyo HONG, Bong Ki KIM, Seok Hyun PARK, Joon Hyun PARK
  • MICROORGANISM OF CORYNEBACTERIUM GENUS HAVING ENHANCED L-ARGININE OR L-CITRULLINE PRODUCTIVITY AND A METHOD FOR PRODUCING L-ARGININE OR L-CITRULLINE USING THE SAME
    Publication number: 20240026282
    Abstract: The present disclosure relates to a Corynebacterium sp. mutant strain having increased L-arginine or L-citrulline productivity and a method of producing L-arginine or L-citrulline using the same. The Corynebacterium sp. mutant strain has enhanced activity of acetylglutamate kinase involved in the L-arginine biosynthesis pathway, and thus is capable of producing L-arginine or L-citrulline in an increased yield compared to a parent strain.
    Type: Application
    Filed: October 4, 2022
    Publication date: January 25, 2024
    Applicant: DAESANG CORPORATION
    Inventors: Mi RYU, Sun Jun Yoon, In Pyo Hong, Seok Hyun Park
  • MICROORGANISM OF CORYNEBACTERIUM GENUS HAVING ENHANCED L-ARGININE OR L-CITRULLINE PRODUCTIVITY AND A METHOD FOR PRODUCING L-ARGININE OR L-CITRULLINE USING THE SAME
    Publication number: 20240026283
    Abstract: The present disclosure relates to a Corynebacterium sp. mutant strain having increased L-arginine or L-citrulline productivity and a method of producing L-arginine or L-citrulline using the same. The Corynebacterium sp. mutant strain has enhanced activity of acetylornithine aminotransferase involved in the L-arginine biosynthesis pathway, and thus is capable of producing L-arginine or L-citrulline productivity in an increased yield compared to a parent strain.
    Type: Application
    Filed: October 4, 2022
    Publication date: January 25, 2024
    Applicant: DAESANG CORPORATION
    Inventors: Mi RYU, Sun Jun YOON, In Pyo HONG, Seok Hyun PARK
  • CORYNEBACTERIUM GLUTAMICUM MUTANT STRAIN HAVING ENHANCED L-LYSINE PRODUCTIVITY AND METHOD OF PRODUCING L-LYSINE USING THE SAME
    Publication number: 20230313244
    Abstract: The present disclosure relates to a Corynebacterium glutamicum mutant strain having enhanced L-lysine productivity and a method of producing L-lysine using the same. The Corynebacterium glutamicum mutant strain may produce L-lysine in an improved yield by inhibiting the conversion of oxaloacetate to citrate due to decreased or inhibited expression of the gene encoding the citrate synthase.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 5, 2023
    Applicant: DAESANG CORPORATION
    Inventors: Mi RYU, In Pyo HONG, Min Jin CHOI, Seok Hyun PARK, Jae Chun HAN