Patents by Inventor Il Hyang PARK

Il Hyang PARK 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).

  • Fructose-4-epimerase and method of producing tagatose using the same
    Patent number: 11884923
    Abstract: Provided are a fructose-4-epimerase variant having tagatose conversion activity, and a method of preparing tagatose using the same.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 30, 2024
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Young Mi Lee, Eul-Soo Park, Il Hyang Park, Sun Mi Shin, Sung Jae Yang, Ran Young Yoon, Eun Jung Choi, Seong Bo Kim, Seung Won Park
  • Fructose-4-epimerase and method of producing tagatose using the same
    Patent number: 11753646
    Abstract: Provided are a tagatose-bisphosphate aldolase variant having tagatose conversion activity, and a method of preparing tagatose using the same.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: September 12, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Young Mi Lee, Eul-Soo Park, Il Hyang Park, Sun Mi Shin, Sung Jae Yang, Ran Young Yoon, Eun Jung Choi, Seong Bo Kim, Seung Won Park
  • Fructose-C4-epimerase and method of producing tagatose using the same
    Patent number: 11697832
    Abstract: Provided are a novel fructose-C4-epimerase and a method of producing tagatose using the same.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: July 11, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Young Mi Lee, Il Hyang Park, Seong Bo Kim, Seung Won Park, Eun Jung Choi
  • RIBULOSE-PHOSPHATE 3-EPIMERASE MOTIF HAVING LOW SIDE REACTIVITY AND ENZYME INCLUDING THE SAME
    Publication number: 20230051519
    Abstract: Provided are ribulose-phosphate 3-epimerase, a microorganism and a composition, each including the ribulose-phosphate 3-epimerase, and a method of producing psicose-6-phosphate or psicose using the same.
    Type: Application
    Filed: April 29, 2020
    Publication date: February 16, 2023
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Sang Young Yoon, Byung-sam Son, Hyun Kug Cho, Hyun June Park, Seung Hwan Kim, Sungjae Yang, Il Hyang Park, Seong Bo Kim
  • Nucleic acid encoding hexuronate C4-epimerase variant having improved D-tagatose conversion activity, and D-tagatose production method using same
    Patent number: 11499147
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: November 15, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sung Jae Yang, Young Mi Lee, Il Hyang Park, Chan-Hyoung Lee, Hyun Kug Cho, Seong Bo Kim, Yang Hee Kim, Seung Won Park
  • Fructose-4-epimerase and method of preparing tagatose using the same
    Patent number: 11459594
    Abstract: Provided are a fructose-4-epimerase variant having tagatose conversion activity, and a method of producing tagatose using the same.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 4, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Young Mi Lee, Eul Soo Park, Il Hyang Park, Sun Mi Shin, Sung Jae Yang, Ran Young Yoon, Eun Jung Choi, Seong Bo Kim, Seung Won Park
  • Composition for producing tagatose and method of producing tagatose using the same
    Patent number: 11408017
    Abstract: Provided are a composition for producing tagatose, comprising fructose-4-epimerase, and a method of producing tagatose using the same.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 9, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sungjae Yang, Young Mi Lee, Il Hyang Park, Hyun Kug Cho, Seong Bo Kim, Chan Hyoung Lee, Eun Jung Choi, Sun Mi Shin
  • Fructose-C4-epimerase and preparation method for producing tagatose using the same
    Patent number: 11408018
    Abstract: The present disclosure relates to a composition for producing tagatose comprising a protein having fructose-4-epimerase activity and a method for producing tagatose using the same.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 9, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Young Mi Lee, Il Hyang Park, Sun Mi Shin, Sungjae Yang, Hyun Kug Cho, Seong Bo Kim, Eun Jung Choi
  • Hexuronate C4-epimerase variant having improved D-tagatose conversion activity, and D-tagatose production method using same
    Patent number: 11306303
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: April 19, 2022
    Assignee: CJ Cheiljedang Corporation
    Inventors: Sung Jae Yang, Young Mi Lee, Il Hyang Park, Chan-Hyoung Lee, Hyun Kug Cho, Seong Bo Kim, Yang Hee Kim, Seung Won Park
  • NOVEL PSICOSE-6-PHOSPHATE PHOSPHATASE, COMPOSITION FOR PRODUCING PSICOSE COMPRISING THE SAME, AND METHOD FOR PRODUCING PSICOSE USING THE SAME
    Publication number: 20220056426
    Abstract: The present application relates to a psicose-6-phosphate phosphatase, a microorganism comprising the same, and a method for producing psicose using the same.
    Type: Application
    Filed: December 5, 2019
    Publication date: February 24, 2022
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Hyun June Park, Sang Young Yoon, Hyun Kug Cho, Sung Jae Yang, So-hyeong Kim, Seung Hwan Kim, Il Hyang Park, Byung-sam Son, Seong Bo Kim, Seung Won Park
  • Composition for producing tagatose and method of producing tagatose using the same
    Patent number: 11180785
    Abstract: Provided are a composition for producing tagatose, comprising fructose-4-epimerase, and a method of producing tagatose using the same.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 23, 2021
    Assignee: CJ CheilJedang Corporation
    Inventors: Sungjae Yang, Young Mi Lee, Il Hyang Park, Hyun Kug Cho, Seong Bo Kim, Chan Hyoung Lee, Eun Jung Choi
  • HEXURONATE C4-EPIMERASE VARIANT HAVING IMPROVED D-TAGATOSE CONVERSION ACTIVITY, AND D-TAGATOSE PRODUCTION METHOD USING SAME
    Publication number: 20210147824
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Application
    Filed: October 21, 2020
    Publication date: May 20, 2021
    Inventors: Sung Jae YANG, Young Mi LEE, Il Hyang PARK, Chan-Hyoung LEE, Hyun Kug CHO, Seong Bo KIM, Yang Hee KIM, Seung Won PARK
  • Hexuronate C4-epimerase variant having improved D-tagatose conversion activity, and D-tagatose production method using same
    Patent number: 10947524
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 16, 2021
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sung Jae Yang, Young Mi Lee, Il Hyang Park, Chan-Hyoung Lee, Hyun Kug Cho, Seong Bo Kim, Yang Hee Kim, Seung Won Park
  • HEXURONATE C4-EPIMERASE VARIANT HAVING IMPROVED D-TAGATOSE CONVERSION ACTIVITY, AND D-TAGATOSE PRODUCTION METHOD USING SAME
    Publication number: 20210017559
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 21, 2021
    Applicant: CJ Cheiljedang Corporation
    Inventors: Sung Jae YANG, Young Mi LEE, Il Hyang PARK, Chan-Hyoung LEE, Hyun Kug CHO, Seong Bo KIM, Yang Hee KIM, Seung Won PARK
  • Hexuronate C4-epimerase variant having improved d-tagatose conversion activity, and d-tagatose production method using same
    Patent number: 10801020
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 13, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sung Jae Yang, Young Mi Lee, Il Hyang Park, Chan-Hyoung Lee, Hyun Kug Cho, Seong Bo Kim, Yang Hee Kim, Seung Won Park
  • Production method for tagatose
    Patent number: 10745720
    Abstract: A method for producing tagatose comprises: a) performing epimerization of fructose using hexuronate C4-epimerase to obtain an epimerized product comprising tagatose; b) purifying the epimerized product; and c) crystallizing the purified epimerized product. The hexuronate C4-epimerase is an enzyme derived from Thermotoga maritima, Thermotoga neapolitana, Thermotoga thermarum or mutants thereof. The hexuronate C4-epimerase is produced from strains Escherichia coli, Corynebacterum glutamicum, Aspergillus oryzae, or Bacillus subtilis.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: August 18, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sung Jae Yang, Yang Hee Kim, Seong Bo Kim, Seung Won Park, Il Hyang Park, Min Hae Kim, Young Mi Lee
  • COMPOSITION FOR PRODUCING TAGATOSE AND METHOD OF PRODUCING TAGATOSE USING THE SAME
    Publication number: 20200087689
    Abstract: Provided are a composition for producing tagatose, comprising fructose-4-epimerase, and a method of producing tagatose using the same.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 19, 2020
    Inventors: Sungjae YANG, Young Mi LEE, Il Hyang PARK, Hyun Kug CHO, Seong Bo KIM, Chan Hyoung LEE, Eun Jung CHOI
  • Composition for preparing tagatose and method for preparing tagatose from fructose
    Patent number: 10544438
    Abstract: The present invention relates to a composition for preparing tagatose, wherein the composition is used for preparing tagatose from fructose and contains a protein including any one amino acid sequence of SEQ ID NOS: 1 to 7 or a microorganism expressing the protein. In addition, the present invention relates to a method for preparing tagatose from fructose, the method comprising a step of allowing the composition to react with fructose.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 28, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Yang Hee Kim, Sung Jae Yang, Young Mi Lee, Il Hyang Park, Seong Bo Kim, Hyun Kug Cho, Seung Won Park
  • Hexuronate C4-epimerase variant having improved D-tagatose conversion activity, and D-tagatose production method using same
    Patent number: 10544439
    Abstract: Provided are a hexuronate C4-epimerase variant with improved activity in converting D-fructose by D-tagatose of hexuronate C4-epimerase and a method for production of D-tagatose using them.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: January 28, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Sung Jae Yang, Young Mi Lee, Il Hyang Park, Chan-Hyoung Lee, Hyun Kug Cho, Seong Bo Kim, Yang Hee Kim, Seung Won Park
  • Hexuronate C4-epimerase mutant with improved conversion activity, and method for producing D-tagatose by using same
    Patent number: 10544409
    Abstract: A hexuronate C4-epimerase with improved conversion activity and a method for producing D-tagatose using the hexuronate C4-epimerase. The hexuronate C4-epimerase includes an amino acid sequence set forth in SEQ ID NO: 1, in which serine (S) at position 125, serine (S) at position 185, valine (V) at position 267, serine (S) at position 268, threonine (T) at position 272, tryptophan (W) at position 306, arginine (R) at position 386 and tyrosine (Y) at position 403 from an N-terminal of hexunorate C4-epimerase are mutated.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 28, 2020
    Assignee: CJ Cheiljedang Corporation
    Inventors: Sung Jae Yang, Yang Hee Kim, Il Hyang Park, Young Mi Lee, Hyun Kug Cho, Seong Bo Kim, Seung Won Park