Patents by Inventor Hack Sun CHOI

Hack Sun CHOI 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: 20250223618
    Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.
    Type: Application
    Filed: March 14, 2025
    Publication date: July 10, 2025
    Inventors: Jeong Woo SEO, Jong Jae YI, Sun Yeon HEO, Young Bae KIM, Chul Ho KIM, Baek Rock OH, Jung Hyun JU, Hack Sun CHOI
  • Patent number: 12291736
    Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.
    Type: Grant
    Filed: March 8, 2024
    Date of Patent: May 6, 2025
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jeong Woo Seo, Jong Jae Yi, Sun Yeon Heo, Young Bae Kim, Chul Ho Kim, Baek Rock Oh, Jung Hyun Ju, Hack Sun Choi
  • Publication number: 20240327883
    Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.
    Type: Application
    Filed: March 8, 2024
    Publication date: October 3, 2024
    Inventors: Jeong Woo SEO, Jong Jae YI, Sun Yeon HEO, Young Bae KIM, Chul Ho KIM, Baek Rock OH, Jung Hyun JU, Hack Sun CHOI
  • Patent number: 11987833
    Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: May 21, 2024
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jeong Woo Seo, Jong Jae Yi, Sun Yeon Heo, Young Bae Kim, Chul Ho Kim, Baek Rock Oh, Jung Hyun Ju, Hack Sun Choi
  • Patent number: 11324706
    Abstract: Disclosed are a composition and a perfume composition for inhibiting growth of breast cancer stem cells containing phenylacetaldehyde or a pharmaceutically acceptable salt thereof as an active (effective) ingredient, and a pharmaceutical composition, a food composition or the like for inhibiting metastasis of breast cancer, or treating or preventing breast cancer, including the composition. The phenylacetaldehyde inhibits growth of breast cancer cells and formation of breast cancer stem cells. In addition, the phenylacetaldehyde inhibits expression of self-renewal genes such as Nanog, Sox2, Oct4, and CD44 known to be specifically expressed in breast cancer stem cells, inhibits production of IL-6 known to be involved in formation of mammospheres of breast cancer stem cells, and inhibits STATS signaling pathways. Accordingly, the compound inhibits growth of breast cancer stem cells and is useful for the treatment of breast cancer.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 10, 2022
    Assignee: JEJU NATIONAL UNIVERSITY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Dong Sun Lee, Hack Sun Choi, Dong Kee Jung
  • Patent number: 11191746
    Abstract: The present invention relates to a composition for inhibiting the growth of cancer stem cells, which includes ciclesonide or a pharmaceutically acceptable salt thereof as an active ingredient, a pharmaceutical composition or food composition for inhibiting cancer metastasis, or treating or preventing cancer, which includes the composition, and the like. Ciclesonide of the present invention inhibits the growth of breast cancer cells and lung cancer cells, and inhibits the formation of breast cancer stem cells and lung cancer stem cells.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 7, 2021
    Assignee: JEJU NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Dong-sun Lee, Hack Sun Choi
  • Publication number: 20210040518
    Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 11, 2021
    Inventors: Jeong Woo SEO, Jong Jae YI, Sun Yeon HEO, Young Bae KIM, Chul Ho KIM, Baek Rock OH, Jung Hyun JU, Hack Sun CHOI
  • Publication number: 20200246307
    Abstract: The present invention relates to a composition for inhibiting the growth of cancer stem cells, which includes ciclesonide or a pharmaceutically acceptable salt thereof as an active ingredient, a pharmaceutical composition or food composition for inhibiting cancer metastasis, or treating or preventing cancer, which includes the composition, and the like. Ciclesonide of the present invention inhibits the growth of breast cancer cells and lung cancer cells, and inhibits the formation of breast cancer stem cells and lung cancer stem cells.
    Type: Application
    Filed: October 13, 2017
    Publication date: August 6, 2020
    Inventors: Dong-sun LEE, Hack Sun CHOI
  • Publication number: 20200188329
    Abstract: Disclosed are a composition and a perfume composition for inhibiting growth of breast cancer stem cells containing phenylacetaldehyde or a pharmaceutically acceptable salt thereof as an active (effective) ingredient, and a pharmaceutical composition, a food composition or the like for inhibiting metastasis of breast cancer, or treating or preventing breast cancer, including the composition. The phenylacetaldehyde inhibits growth of breast cancer cells and formation of breast cancer stem cells. In addition, the phenylacetaldehyde inhibits expression of self-renewal genes such as Nanog, Sox2, Oct4, and CD44 known to be specifically expressed in breast cancer stem cells, inhibits production of IL-6 known to be involved in formation of mammospheres of breast cancer stem cells, and inhibits STATS signaling pathways. Accordingly, the compound inhibits growth of breast cancer stem cells and is useful for the treatment of breast cancer.
    Type: Application
    Filed: April 25, 2017
    Publication date: June 18, 2020
    Inventors: Dong Sun LEE, Hack Sun CHOI, Dong Kee JUNG