Patents by Inventor Chan-hyoung Lee

Chan-hyoung Lee 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).

  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • COMPOSITION FOR PRODUCING TAGATOSE AND METHOD OF PRODUCING TAGATOSE USING THE SAME
    Publication number: 20200024627
    Abstract: Provided are a composition for producing tagatose, comprising fructose-4-epimerase, and a method of producing tagatose using the same.
    Type: Application
    Filed: March 30, 2018
    Publication date: January 23, 2020
    Inventors: Sungjae YANG, Young Mi LEE, II 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: 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 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
  • Agarooligosaccharide hydrolase and method for producing 3,6-anhydro-L-galactose and galactose from agarose by using same
    Patent number: 9902983
    Abstract: The present invention relates to agarooligosaccharide hydrolase and a method for producing 3,6-anhydro-L-galactose and galactose from agarose by using the same. More specifically, the production yield of 3,6-anhydro-L-galactose and galactose from agarose, that is, the saccharification yield, is improved by using ?-agarooligosaccharide hydrolase having an agarotriose hydrolytic activity.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: February 27, 2018
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Chan Hyoung Lee, Hee Taek Kim, Eun-Ju Yun
  • AGAROOLIGOSACCHARIDE HYDROLASE AND METHOD FOR PRODUCING 3,6-ANHYDRO-L-GALACTOSE AND GALACTOSE FROM AGAROSE BY USING SAME
    Publication number: 20160265012
    Abstract: The present invention relates to agarooligosaccharide hydrolase and a method for producing 3,6-anhydro-L-galactose and galactose from agarose by using the same. More specifically, the production yield of 3,6-anhydro-L-galactose and galactose from agarose, that is, the saccharification yield, is improved by using ?-agarooligosaccharide hydrolase having an agarotriose hydrolytic activity.
    Type: Application
    Filed: October 8, 2014
    Publication date: September 15, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Chan Hyoung Lee, Hee Taek Kim, Eun-Ju Yun
  • Steel-concrete composite beam using asymmetric section steel beam
    Patent number: 6807789
    Abstract: Disclosed is a steel-concrete composite beam. The steel-concrete composite beam has an asymmetric I-section steel member having an upper flange, a lower flange and a web. The web is formed with at least one opening at a predetermined interval. The upper flange has a narrower width than the lower flange. A pair of C-section steel members is attached integrally to the lower flange of the asymmetric I-section steel form a first space filled with concrete. The concrete interlocks with the lower flange. A deck is supported on the C-section steel members. At least one transverse reinforcing bar of slab is arranged through the opening perpendicular to the asymmetric I-section steel. An upper concrete slab is poured with the concrete to be formed at a predetermined thickness. The concrete fills in a second space defined by the C-section steel members and the lower flange so that the upper flange of the asymmetric I-section steel is embedded.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 26, 2004
    Assignees: Daewoo Engineering & Construction Co., LTD, Dongyang Structural Engineers Co., LTD, Haisung Engineering Co., Ltd.
    Inventors: Dae-young Kim, Young-gyu Ju, Sung-chul Chun, Sang-dae Kim, Kwang-ryang Chung, Chan-hyoung Lee, Do-hyun Kim, Il-seob Moon