Patents by Inventor Jongho Yi

Jongho Yi 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).

  • Mutant microorganism producing succinic acid simultaneously using sucrose and glycerol, and method for preparing succinic acid using same
    Patent number: 8691516
    Abstract: The present invention relates to a succinic acid-producing mutant microorganism that is able to utilize sucrose and glycerol simultaneously as carbon sources. More particularly, the present invention relates to a succinic acid-producing mutant microorganism that is able to utilize sucrose and glycerol simultaneously for succinic acid production, the mutant organism being obtained by relieving the mechanism of sucrose-mediated catabolite repression of glycerol in a succinic acid-producing microorganism. As described above, when the succinic acid-producing mutant microorganism is cultured, it utilizes sucrose and glycerol simultaneously so that succinic acid can be produced with high productivity in a maximum yield approaching the theoretical yield while the production of byproducts is minimized. In addition, according to the present invention, various reduced chemicals which have been produced in low yields in conventional methods can be more effectively produced.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: April 8, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Yup Lee, Jeong Wook Lee, Sol Choi, Jongho Yi
  • NOVEL MUTANT MICROORGANISM PRODUCING SUCCINIC ACID SIMULTANEOUSLY USING SUCROSE AND GLYCEROL, AND METHOD FOR PREPARING SUCCINIC ACID USING SAME
    Publication number: 20130217087
    Abstract: The present invention relates to a succinic acid-producing mutant microorganism that is able to utilize sucrose and glycerol simultaneously as carbon sources. More particularly, the present invention relates to a succinic acid-producing mutant microorganism that is able to utilize sucrose and glycerol simultaneously for succinic acid production, the mutant organism being obtained by relieving the mechanism of sucrose-mediated catabolite repression of glycerol in a succinic acid-producing microorganism. As described above, when the succinic acid-producing mutant microorganism is cultured, it utilizes sucrose and glycerol simultaneously so that succinic acid can be produced with high productivity in a maximum yield approaching the theoretical yield while the production of byproducts is minimized. In addition, according to the present invention, various reduced chemicals which have been produced in low yields in conventional methods can be more effectively produced.
    Type: Application
    Filed: August 30, 2011
    Publication date: August 22, 2013
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Yup Lee, Jeong Wook Lee, Sol Choi, Jongho Yi