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).

  • HEXURONATE C4-EPIMERASE VARIANT HAVING IMPROVED D-TAGATOSE CONVERSION ACTIVITY, AND D-TAGATOSE PRODUCTION METHOD USING SAME
    Publication number: 20190390188
    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: December 26, 2019
    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: 20190338329
    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: November 7, 2019
    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 MUTANT WITH IMPROVED CONVERSION ACTIVITY, AND METHOD FOR PRODUCING D-TAGATOSE BY USING SAME
    Publication number: 20190136223
    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: Application
    Filed: December 21, 2018
    Publication date: May 9, 2019
    Inventors: Sung Jae Yang, Yang Hee Kim, IL Hyang Park, Young Mi Lee, Hyun Kug Cho, Seong Bo Kim, Seung Won Park
  • HEXURONATE C4-EPIMERASE VARIANT HAVING IMPROVED D-TAGATOSE CONVERSION ACTIVITY, AND D-TAGATOSE PRODUCTION METHOD USING SAME
    Publication number: 20190112589
    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: April 18, 2019
    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: 10196626
    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: July 29, 2016
    Date of Patent: February 5, 2019
    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
  • HEXURONATE C4-EPIMERASE MUTANT WITH IMPROVED CONVERSION ACTIVITY, AND METHOD FOR PRODUCING D-TAGATOSE BY USING SAME
    Publication number: 20180245062
    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: Application
    Filed: July 29, 2016
    Publication date: August 30, 2018
    Applicant: 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
  • COMPOSITION FOR PREPARING TAGATOSE AND METHOD FOR PREPARING TAGATOSE FROM FRUCTOSE
    Publication number: 20170306370
    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: Application
    Filed: October 19, 2015
    Publication date: October 26, 2017
    Applicant: 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
  • PRODUCTION METHOD FOR TAGATOSE
    Publication number: 20160138053
    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: Application
    Filed: June 3, 2014
    Publication date: May 19, 2016
    Inventors: Sung Jae YANG, Yang Hee KIM, Seong Bo KIM, Seung Won PARK, Il Hyang PARK, Min Hae KIM, Young Mi LEE