Patents by Inventor Jai-Young Song

Jai-Young Song 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).

  • Patent number: 8936940
    Abstract: The present invention relates to a method of producing secondary metabolites with a high yield using plant cell culture, and a medium for the production of secondary metabolites. More specifically, the method of the present invention is characterized in that the plant cell culture is conducted by adding a saccharide mixture to the culture medium as a carbon source, to increase the productivity of the secondary metabolites. For example, the present invention establishes the method of increasing the productivity of secondary metabolites and shortening the culture time by the use of the mixture of glucose and fructose in the plant cell culture, thereby contributing in producing useful secondary metabolites on an industrial scale using plant cell culture.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: January 20, 2015
    Assignee: Samyang Biopharmaceuticals Corporation
    Inventors: Jin-Ah Kim, Chang-Heon Kim, Jai-Young Song, Ho-Joon Choi
  • Patent number: 8633326
    Abstract: Provided is a method for preparing a taxane derivative, comprising: carrying out condensation of a phenylisoserine derivatives having a protective group introduced thereto or a mixture of isomers thereof, as a side chain, with a baccatin III derivative or 10-deacetyl-baccatin III derivative to obtain a mixture of isomers; separating the isomers via chromatography; and carrying out a reversion of the stereochemical structure of a selectively separated isomer, which is suitable for producing a taxane derivative in a large scale with high yield.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 21, 2014
    Assignee: Samyang Biopharmaceuticals Corporation
    Inventors: Sang-Hyun Pyo, Jin-Suk Cho, Moon-Suk Kim, Jai-Young Song, Ho-Joon Choi
  • Patent number: 8410294
    Abstract: A method for preparing highly pure anhydrous crystalline docetaxel is provided. The method for preparing highly pure anhydrous crystalline docetaxel enables preparation of anhydrous crystalline docetaxel that has purity of 99.5% or more, and is useful as an anticancer agent due to remarkably low residual solvent content compared to the standard of residual solvents in drugs.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: April 2, 2013
    Assignee: Samyang Genexbio Corporation
    Inventors: Jin-Suk Cho, Moon-Suk Kim, Jai-Young Song, Jeong-Hwan Yun, Jong-Won Yoon, Ho-Joon Choi
  • Publication number: 20130046104
    Abstract: A method for preparing highly pure anhydrous crystalline docetaxel is provided. The method for preparing highly pure anhydrous crystalline docetaxel enables preparation of anhydrous crystalline docetaxel that has purity of 99.5% or more, and is useful as an anticancer agent due to remarkably low residual solvent content compared to the standard of residual solvents in drugs.
    Type: Application
    Filed: December 27, 2010
    Publication date: February 21, 2013
    Applicant: Samyang Genexbio Corporation
    Inventors: Jin-Suk Cho, Moon-Suk Kim, Jai-Young Song, Jeong-Hwan Yun, Jong-Won Yoon, Ho-Joon Choi
  • Publication number: 20120035379
    Abstract: Provided is a method for preparing a taxane derivative, comprising: carrying out condensation of a phenylisoserine derivatives having a protective group introduced thereto or a mixture of isomers thereof, as a side chain, with a baccatin III derivative or 10-deacetyl-baccatin III derivative to obtain a mixture of isomers; separating the isomers via chromatography; and carrying out a reversion of the stereochemical structure of a selectively separated isomer, which is suitable for producing a taxane derivative in a large scale with high yield.
    Type: Application
    Filed: December 3, 2009
    Publication date: February 9, 2012
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Sang-Hyun Pyo, Jin-Suk Cho, Moon-Suk Kim, Jai-Young Song, Ho-Joon Choi
  • Patent number: 8101411
    Abstract: The present invention relates to a method of producing corosolic acid by using plant cells that produce corosolic acid. More particularly, the present invention relates to a method of producing corosolic acid by using plant cell suspension cultures comprising the steps of: inducing a callus from a tissue of a plant producing corosolic acid; preparing a cell line capable of being cultured in liquid culture medium from the induced callus; culturing the cell line in a suspension culture; and isolating corosolic acid from the culture solution. The present invention has advantage of maximizing productivity by utilizing two-stage culture, treatment with inducing agent, and high cell-density culture in the suspension culture of plant cells producing corosolic acid.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: January 24, 2012
    Assignee: Samyang Genex Corporation
    Inventors: Chang-Heon Kim, Jin-Ah Kim, Jai-Young Song, Ho-Joon Choi
  • Publication number: 20100159545
    Abstract: The present invention relates to a method of producing corosolic acid by using plant cells that produce corosolic acid. More particularly, the present invention relates to a method of producing corosolic acid by using plant cell suspension cultures comprising the steps of: inducing a callus from a tissue of a plant producing corosolic acid; preparing a cell line capable of being cultured in liquid culture medium from the induced callus; culturing the cell line in a suspension culture; and isolating corosolic acid from the culture solution. The present invention has advantage of maximizing productivity by utilizing two-stage culture, treatment with inducing agent, and high cell-density culture in the suspension culture of plant cells producing corosolic acid.
    Type: Application
    Filed: June 30, 2006
    Publication date: June 24, 2010
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Chang-Heon Kim, Jin-An Kim, Jai-Young Song, Ho-Joon Choi
  • Publication number: 20090317877
    Abstract: The present invention relates to a method of producing secondary metabolites with a high yield using plant cell culture, and a medium for the production of secondary metabolites. More specifically, the method of the present invention is characterized in that the plant cell culture is conducted by adding a saccharide mixture to the culture medium as a carbon source, to increase the productivity of the secondary metabolites. For example, the present invention establishes the method of increasing the productivity of secondary metabolites and shortening the culture time by the use of the mixture of glucose and fructose in the plant cell culture, thereby contributing in producing useful secondary metabolites on an industrial scale using plant cell culture.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 24, 2009
    Inventors: Jin-Ah Kim, Chang-Heon Kim, Jai-Young Song, Ho-Joon Choi