Patents by Inventor Jin Sook Chang

Jin Sook Chang 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: 20240150730
    Abstract: The present disclosure relates to a novel citrate synthase variant, a microorganism comprising the variant, and a method for producing O-acetyl-L-homoserine and L-methionine using the microorganism.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 9, 2024
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Jin Sook CHANG, Seung Hyun CHO, Seo-Yun KIM, Jaemin LEE, Min Ji BAEK, Imsang LEE
  • Publication number: 20240150731
    Abstract: The present disclosure relates to a novel citrate synthase variant, a microorganism comprising the variant, and a method for producing L-amino acids using the microorganism.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 9, 2024
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Jin Sook CHANG, Ju-yeon KIM, Seon Hye KIM, Hyung Joon KIM, Byoung Hoon YOON, Heeseok LEE
  • Publication number: 20240026397
    Abstract: The present disclosure relates to a microorganism producing L-valine and a method for producing L-valine using the microorganism.
    Type: Application
    Filed: September 1, 2021
    Publication date: January 25, 2024
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Jin Sook CHANG, Seon Hye KIM, Byoung Hoon YOON, Ju-yeon KIM, Hyung Joon KIM, Sun Hyoung CHOI
  • Patent number: 11773417
    Abstract: The present disclosure relates to strains of Thraustochytrium genus, including a high content of polyunsaturated fatty acids, and a method of producing a biomass using the same. According to the novel CJM01 microalgae of Thraustochytrium genus of the present disclosure, the content of lipids in the biomass and the content of unsaturated fatty acid such as docosahexaenoic acid in the biomass are high, so that the microalgae itself, a biomass produced by the culturing and fermentation of microalgae, a condensate of the biomass, and a dried product of the biomass are very useful as a feed composition.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: October 3, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Young Kim, Myung Geun Park, Hye Min Park, Jung Woon Choi, Sang Min Park, Sang Young Bae, Jin Sook Chang
  • Patent number: 11661616
    Abstract: The present disclosure relates to a microorganism having increased glycine productivity and a method for producing a fermented composition using the microorganism, and more specifically, to a microorganism of the genus Corynebacterium having increased glycine productivity due to the introduction of a mutation in HisG, a method for preparing a fermented composition comprising glycine and glutamic acid using the microorganism of the genus Corynebacterium, and the fermented composition.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 30, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Yeon Lee, Jin Sook Chang, Hyung Joon Kim, Byoung Hoon Yoon, Sun Hyoung Choi, Yunjung Choi
  • Publication number: 20230063145
    Abstract: Disclosed is an L-branched-chain amino acid-producing microorganism having enhanced activity of regulator of acetate metabolism A and a method for producing an L-branched-chain amino acids using the same.
    Type: Application
    Filed: May 20, 2021
    Publication date: March 2, 2023
    Inventors: Byoung Hoon YOON, Seon Hye KIM, Jin Sook CHANG, Ju-yeon KIM, Sun Hyoung CHOI, Kyungrim KIM, Ju Eun KIM, Hyung Joon KIM
  • Publication number: 20220340940
    Abstract: The present application relates to a novel promoter and a method for producing a desired substance using the same.
    Type: Application
    Filed: September 1, 2020
    Publication date: October 27, 2022
    Inventors: Byoung Hoon YOON, Jin Sook CHANG, Seon Hye KIM, Ji Hye LEE, Sun Hyoung CHOI, Kyungrim KIM, Hyung Joon KIM
  • Patent number: 11352608
    Abstract: The present disclosure relates to a novel promoter and a method for producing L-amino acids using the promoter, and more specifically, to a novel polynucleotide having promoter activity, a vector and a microorganism of the genus Corynebacterium comprising the polynucleotide, a method for producing L-amino acids using the microorganism, and a fermented composition.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: June 7, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sun Hyoung Choi, Jin Sook Chang, Hyung Joon Kim, Byoung Hoon Yoon, Ji Yeon Lee, Yunjung Choi
  • Patent number: 11180784
    Abstract: A microorganism of the genus Corynebacterium producing L-amino acids, and a method of producing L-amino acids using the same.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: November 23, 2021
    Assignee: CJ Cheiljedang Corporation
    Inventors: Seung-ju Son, Byoung Hoon Yoon, Kwang Woo Lee, Seon Hye Kim, Hyo Jeong Byun, Jin Sook Chang, Hyung Joon Kim, Yong Uk Shin
  • Patent number: 11066687
    Abstract: Provided are a variant of 5?-inosinic acid dehydrogenase, a microorganism including the same, and a method of preparing 5?-inosinic acid using the same.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 20, 2021
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Hye Lee, So-jung Park, Min Ji Baek, Jin Sook Chang, Byoung Hoon Yoon
  • Publication number: 20210139939
    Abstract: Provided are a variant of 5?-inosinic acid dehydrogenase, a microorganism including the same, and a method of preparing 5?-inosinic acid using the same.
    Type: Application
    Filed: August 16, 2018
    Publication date: May 13, 2021
    Inventors: Ji Hye LEE, So-jung PARK, Min Ji BAEK, Jin Sook CHANG, Byoung Hoon YOON
  • Patent number: 10961554
    Abstract: The present disclosure relates to a novel promoter and a method for producing L-amino acids using the promoter, and more specifically, to a novel polynucleotide having promoter activity, a vector and a microorganism of the genus Corynebacterium comprising the polynucleotide, a method for producing L-amino acids and a fermented composition using the microorganism, and a fermented composition.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 30, 2021
    Assignee: CJ Cheiljedang Corporation
    Inventors: Ji Yeon Lee, Jin Sook Chang, Hyung Joon Kim, Byoung Hoon Yoon, Sun Hyoung Choi, Yunjung Choi
  • Publication number: 20210002654
    Abstract: The present disclosure relates to a novel promoter and a method for producing L-amino acids using the promoter, and more specifically, to a novel polynucleotide having promoter activity, a vector and a microorganism of the genus Corynebacterium comprising the polynucleotide, a method for producing L-amino acids using the microorganism, and a fermented composition.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 7, 2021
    Inventors: Sun Hyoung CHOI, Jin Sook CHANG, Hyung Joon KIM, Byoung Hoon YOON, Ji Yeon LEE, Yunjung CHOI
  • Publication number: 20210002680
    Abstract: The present disclosure relates to strains of Thraustochyrium genus, including a high content of polyunsaturated fatty acids, and a method of producing a biomass using the same. According to the novel CJM01 microalgae of Thraustochyrium genus of the present disclosure, the content of lipids in the biomass and the content of unsaturated fatty acid such as docosahexaenoic acid in the biomass are high, so that the microalgae itself, a biomass produced by the culturing and fermentation of microalgae, a condensate of the biomass, and a dried product of the biomass are very useful as a feed composition.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 7, 2021
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Young Kim, Myung Geun Park, Hye Min Park, Jung Woon Choi, Sang Min Park, Sang Young Bae, Jin Sook Chang
  • Publication number: 20210002655
    Abstract: The present disclosure relates to a microorganism having increased glycine productivity and a method for producing a fermented composition using the microorganism, and more specifically, to a microorganism of the genus Corynebacterium having increased glycine productivity due to the introduction of a mutation in HisG, a method for preparing a fermented composition comprising glycine and glutamic acid using the microorganism of the genus Corynebacterium, and the fermented composition.
    Type: Application
    Filed: March 27, 2019
    Publication date: January 7, 2021
    Inventors: Ji Yeon LEE, Jin Sook CHANG, Hyung Joon KIM, Byoung Hoon YOON, Sun Hyoung CHOI, Yunjung CHOI
  • Publication number: 20200362374
    Abstract: A microorganism of the genus Corynebacterium producing L-amino acids, and a method of producing L-amino acids using the same.
    Type: Application
    Filed: January 25, 2019
    Publication date: November 19, 2020
    Inventors: Seung-ju SON, Byoung Hoon YOON, Kwang Woo LEE, Seon Hye KIM, Hyo Jeong BYUN, Jin Sook CHANG, Hyung Joon KIM, Yong Uk SHIN
  • Patent number: 10752659
    Abstract: The present invention relates to an RhtB (homoserine/homoserine lactone export transporter) protein variant having an enhanced ability to export O-phosphoserine (OPS) that is a precursor of L-cysteine, a polynucleotide encoding the protein, a vector comprising the polynucleotide, an OPS-producing microorganism comprising the protein variant, a method of producing O-phosphoserine using the microorganism, and a method for preparing cysteine or its derivatives, which comprises reacting O-phosphoserine, produced by the method above, with a sulfide in the presence of O-phosphoserine sulfhydrylase (OPSS) or a microorganism that expresses OPSS.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 25, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sol Kim, Hye Won Kim, Jin Sook Chang, In Hwa Yoo
  • Patent number: 10738091
    Abstract: The present invention relates to an RhtB (homoserine/homoserine lactone export transporter) protein variant having an enhanced ability to export O-phosphoserine (OPS) that is a precursor of L-cysteine, a polynucleotide encoding the protein, a vector comprising the polynucleotide, an OPS-producing microorganism comprising the protein variant, a method of producing O-phosphoserine using the microorganism, and a method for preparing cysteine or its derivatives, which comprises reacting O-phosphoserine, produced by the method above, with a sulfide in the presence of O-phosphoserine sulfhydrylase (OPSS) or a microorganism that expresses OPSS.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: August 11, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sol Kim, Hye Won Kim, Jin Sook Chang, In Hwa Yoo
  • Publication number: 20200248217
    Abstract: The present disclosure relates to a novel promoter and a method for producing L-amino acids using the promoter, and more specifically, to a novel polynucleotide having promoter activity, a vector and a microorganism of the genus Corynebacterium comprising the polynucleotide, a method for producing L-amino acids and a fermented composition using the microorganism, and a fermented composition.
    Type: Application
    Filed: March 27, 2019
    Publication date: August 6, 2020
    Inventors: Ji Yeon LEE, Jin Sook CHANG, Hyung Joon KIM, Byoung Hoon YOON, Sun Hyoung CHOI, Yunjung CHOI
  • Patent number: 10662450
    Abstract: An aspartokinase variant, a microorganism comprising the variant, and a method for producing an aspartate-derived L-amino acid or a homoserine derivative thereof using the microorganism.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 26, 2020
    Assignee: CJ Cheiljedang Corporation
    Inventors: Hyung Joon Kim, Hyo Jin Kim, Hyun Won Bae, Hyun Ah Kim, Chang Il Seo, Ji Sun Lee, Jin Sook Chang