Patents by Inventor Ki Yong Cheong

Ki Yong Cheong 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).

  • L-ISOLEUCINE-PRODUCING MICROORGANISM AND L-ISOLEUCINE PRODUCING METHOD USING SAME
    Publication number: 20250043294
    Abstract: The present disclosure relates to a microorganism with L-isoleucine-producing ability, into which a foreign gene encoding glutamate dehydrogenase is introduced, a method of producing L-isoleucine using the microorganism, and a composition for producing L-isoleucine, the composition including the microorganism.
    Type: Application
    Filed: December 6, 2022
    Publication date: February 6, 2025
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Heejung KIM, Ki Yong CHEONG, Heeyeong KIM, Woosung CHOI
  • NOVEL ACETOHYDROXY ACID SYNTHASE VARIANT, AND METHOD FOR PRODUCING L-ISOLEUCINE USING SAME
    Publication number: 20250034608
    Abstract: The present disclosure relates to a novel acetohydroxy acid synthase (AHAS) variant improving L-isoleucine producing ability, a microorganism including the same, and a method of producing L-isoleucine using the microorganism.
    Type: Application
    Filed: August 5, 2022
    Publication date: January 30, 2025
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Heeyeong KIM, Kyungrim KIM, Woosung CHOI, Ki Yong CHEONG
  • NOVEL ACETOHYDROXY ACID SYNTHASE MUTANT AND L-ISOLEUCINE PRODUCTION METHOD USING SAME
    Publication number: 20240392260
    Abstract: The present disclosure relates to a novel acetohydroxy acid synthase (AHAS) variant improving L-isoleucine producing ability, a microorganism including the same, and a method of producing L-isoleucine using the microorganism.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 28, 2024
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Heeyeong KIM, Kyungrim KIM, Woosung CHOI, Ki Yong CHEONG
  • Camp receptor protein variant and method of producing L-amino acid using the same
    Patent number: 11697673
    Abstract: The present disclosure relates to a variant of cAMP receptor protein of Escherichia coli with alanine at position 35, a microorganism including the same, and a method of producing an L-amino acid using the same.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 11, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Seok Myung Lee, Ki Yong Cheong, Chang Il Seo, Ji Sun Lee
  • METHOD FOR PRODUCING L-TRYPTOPHAN THROUGH ENHANCEMENT OF PREPHENATE DEHYDRATASE ACTIVITY
    Publication number: 20230134555
    Abstract: The present disclosure relates to a method for producing L-tryptophan through the enhancement of prephenate dehydratase (PheA) activity.
    Type: Application
    Filed: March 5, 2021
    Publication date: May 4, 2023
    Inventors: Chang Il SEO, Hyun Ah KIM, Sung Kwang SON, Ki Yong CHEONG, Moo Young JUNG, Tae Yeon KIM
  • L-tryptophan-exporting protein variant and method for producing L-tryptophan using the same
    Patent number: 11524981
    Abstract: The present disclosure relates to a protein variant having a tryptophan-exporting activity, an L-tryptophan-producing microorganism expressing the protein variant, and a method for producing L-tryptophan using the microorganism.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: December 13, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Moo Young Jung, Hyun Ah Kim, Chang Il Seo, Imsang Lee, Ji-won Kim, Tae Yeon Kim, Sung Kwang Son, Ki Yong Cheong
  • cAMP receptor protein variant and method of producing L-amino acid using the same
    Patent number: 11512331
    Abstract: Provided are a cAMP receptor protein variant, a microorganism including the same, and a method of producing an L-amino acid using the same.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: November 29, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ki Yong Cheong, Hyeryun Yoo, Chang Ii Seo, Jaemin Lee, Seung Hyun Cho
  • cAMP receptor protein variant, coding sequence and method of producing L-amino acid using the same
    Patent number: 11473113
    Abstract: Provided are a cAMP receptor protein variant and coding sequence, a microorganism including the same, and a method of producing a L-amino acid using the same.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: October 18, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Seok Myung Lee, Ki Yong Cheong, Chang Il Seo, Ji Sun Lee
  • NOVEL L-TRYPTOPHAN-EXPORTING PROTEIN VARIANT AND METHOD FOR PRODUCING L-TRYPTOPHAN USING THE SAME
    Publication number: 20220009973
    Abstract: The present disclosure relates to a protein variant having a tryptophan-exporting activity, an L-tryptophan-producing microorganism expressing the protein variant, and a method for producing L-tryptophan using the microorganism.
    Type: Application
    Filed: March 20, 2020
    Publication date: January 13, 2022
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Moo Young Jung, Hyun Ah Kim, Chang Il Seo, Imsang Lee, Ji-won Kim, Tae Yeon Kim, Sung Kwang Son, Ki Yong Cheong
  • cAMP RECEPTOR PROTEIN VARIANT AND METHOD OF PRODUCING L-AMINO ACID USING THE SAME
    Publication number: 20210388402
    Abstract: Provided are a cAMP receptor protein variant, a microorganism including the same, and a method of producing an L-amino acid using the same.
    Type: Application
    Filed: July 25, 2019
    Publication date: December 16, 2021
    Inventors: Ki Yong CHEONG, Hyeryun YOO, Chang II SEO, Jaemin LEE, Seung Hyun CHO
  • cAMP RECEPTOR PROTEIN VARIANT AND METHOD OF PRODUCING L-AMINO ACID USING THE SAME
    Publication number: 20210363197
    Abstract: The present disclosure relates to a cAMP receptor protein variant, a microorganism including the same, and a method of producing an L-amino acid using the same.
    Type: Application
    Filed: July 25, 2019
    Publication date: November 25, 2021
    Inventors: Seok Myung LEE, Ki Yong CHEONG, Chang II SEO, Ji Sun LEE
  • cAMP RECEPTOR PROTEIN VARIANT AND METHOD OF PRODUCING L-AMINO ACID USING THE SAME
    Publication number: 20210317488
    Abstract: Provided are a cAMP receptor protein variant, a microorganism including the same, and a method of producing an L-amino acid using the same.
    Type: Application
    Filed: July 25, 2019
    Publication date: October 14, 2021
    Inventors: Seok Myung LEE, Ki Yong CHEONG, Chang II SEO, Ji Sun LEE
  • L-tryptophan exporter and method of producing L-tryptophan using the same
    Patent number: 10995378
    Abstract: The present disclosure relates to a microorganism producing L-tryptophan in which the microorganism is modified such that a protein having an L-tryptophan-exporting activity comprising the amino acid sequence of SEQ ID NO: 1 is expressed, and a method for producing L-tryptophan using the microorganism.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: May 4, 2021
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Moo Young Jung, Chang Il Seo, Hyo Jin Kim, Tae Yeon Kim, Hyun Ah Kim, Sung Kwang Son, Hye Ryun Yoo, Jae Min Lee, Ki Yong Cheong
  • Microorganism of the genus producing L-tryptophan and method for producing L-tryptophan using the same
    Patent number: 10815510
    Abstract: The present application relates to a microorganism of the genus Escherichia producing L-tryptophan and, more specifically, to a microorganism of the genus Escherichia with improved activity of producing L-tryptophan by weakening or inactivating the activity of endogenous 6-phosphogluconate dehydratase and 2-keto-3-deoxy-6-phosphogluconate aldolase. Additionally, the present application relates to a method for producing L-tryptophan using the microorganism of the genus Escherichia.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: October 27, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ki Yong Cheong, Kyung Rim Kim, Seok Myung Lee, Kwang Ho Lee, Keun Cheol Lee, Hyeong Pyo Hong
  • L-threonine and L-tryptophan producing bacteria strain and method of making same
    Patent number: 10787692
    Abstract: The present invention relates to a microorganism able to produce L-threonine or L-tryptophan, and to a method for producing L-threonine or L-tryptophan by using same. More specifically, the present invention relates to: recombinant Escherichia coli which is more efficient in producing L-threonine or L-tryptophan by increasing the ability to produce ATP which is used as the most plentiful energy source in cells when producing L-threonine or L-tryptophan; and a method for producing L-threonine or L-tryptophan by using same.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 29, 2020
    Assignee: CJ Cheiljedang Corporation
    Inventors: Ki Yong Cheong, Seok Myung Lee, Young Bin Hwang, Keun Cheol Lee, Kwang Ho Lee
  • A RECOMBINANT MICROORGANISM PRODUCING L-THREONINE AND A METHOD FOR PRODUCING L-THREONINE USING THE SAME
    Publication number: 20200248218
    Abstract: The present disclosure relates to a recombinant microorganism producing threonine, and a method for producing L-threonine using the same.
    Type: Application
    Filed: October 21, 2016
    Publication date: August 6, 2020
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Chang Il Seo, Hye Min Park, Kwang Ho Lee, Sang Min Park, Kyung Rim Kim, Ki Yong Cheong
  • NOVEL L-TRYPTOPHAN EXPORTER AND METHOD OF PRODUCING L-TRYPTOPHAN USING THE SAME
    Publication number: 20200063219
    Abstract: The present disclosure relates to a microorganism producing L-tryptophan in which the microorganism is modified such that a protein having an L-tryptophan-exporting activity comprising the amino acid sequence of SEQ ID NO: 1 is expressed, and a method for producing L-tryptophan using the microorganism.
    Type: Application
    Filed: February 22, 2019
    Publication date: February 27, 2020
    Inventors: Moo Young JUNG, Chang Il SEO, Hyo Jin KIM, Tae Yeon KIM, Hyun Ah KIM, Sung Kwang SON, Hye Ryun YOO, Jae Min LEE, Ki Yong CHEONG
  • Microorganism of the genus producing L-tryptophan and a method for producing L-tryptophan using the same
    Patent number: 10378032
    Abstract: The present disclosure relates to a microorganism of the genus Escherichia producing more L-tryptophan by inactivating the activity of phosphatase. Additionally, the present disclosure relates to a method for producing L-tryptophan using the microorganism of the genus Escherichia.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 13, 2019
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Hye Min Park, Baek Seok Lee, Seok Myung Lee, Kyungrim Kim, Kwang Ho Lee, Ki Yong Cheong, Keun Cheol Lee, Hyeongpyo Hong
  • Microorganisms producing L-amino acids and process for producing L-amino acids using the same
    Patent number: 10202609
    Abstract: Disclosed are a recombinant microorganism having enhanced L-amino acid producibility, wherein the recombinant microorganism is transformed to have an inactivated phage receptor thereof, and a method of producing an L-amino acid using the recombinant microorganism. The use of the recombinant microorganism may enable the production of the L-amino acid in a highly efficient manner.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 12, 2019
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Sun Lee, Chang Il Seo, Ki Yong Cheong, Eun Sung Koh, Do Hyun Kwon, Kwang Ho Lee
  • L-threonine and L-tryptophan producing bacteria strain and method of making same
    Patent number: 10041099
    Abstract: The present invention relates to a microorganism able to produce L-threonine or L-tryptophan, and to a method for producing L-threonine or L-tryptophan by using same. More specifically, the present invention relates to: recombinant Escherichia coli which is more efficient in producing L-threonine or L-tryptophan by increasing the ability to produce ATP which is used as the most plentiful energy source in cells when producing L-threonine or L-tryptophan; and a method for producing L-threonine or L-tryptophan by using same.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: August 7, 2018
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ki Yong Cheong, Seok Myung Lee, Young Bin Hwang, Keun Cheol Lee, Kwang Ho Lee