Patents by Inventor Sol Choi

Sol 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: 20150214550
    Abstract: A positive active material, a method of preparing the same, and a lithium battery including the positive active material, the positive active material including a core, the core including an overlithiated lithium transition metal oxide; and a coating layer on the core, the coating layer including Li3VO4.
    Type: Application
    Filed: November 10, 2014
    Publication date: July 30, 2015
    Inventors: Jay-Hyok SONG, Byong-Yong YU, Andrei KAPYLOU, Sol CHOI, Yong-Chan YOU, Sun-Ho KANG
  • Patent number: 8877482
    Abstract: The present invention relates to microbial variants producing homo-succinic acid at high yields and a method for producing homo-succinic acid using the same, more particularly, to a microbial variant constructed by disrupting a lactate dehydro-genase-encoding gene (idhA) and an acetate kinase-encoding gene (ackA), as well as a method for producing homo-succinic acid at high concentration, which comprises culturing such variants using glucose as a carbon source in anaerobic conditions.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: November 4, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Yup Lee, Ji Mahn Kim, Jeong Wook Lee, Hyohak Song, Sol Choi
  • Publication number: 20140187166
    Abstract: A method and device for controlling short range wireless communication in an electronic device are provided. The method includes detecting a moving speed of the electronic device; and when the detected moving speed exceeds a reference speed, stopping a short range wireless communication module.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 3, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Han-Sol CHOI
  • 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
  • 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
  • Publication number: 20110269183
    Abstract: The present invention relates to a recombinant microorganism capable of metabolizing sucrose, and more particularly to a recombinant microorganism capable of metabolizing sucrose in which a gene encoding sucrose phosphotransferase and/or a gene encoding sucrose-6-phosphate hydrolase is introduced or to a recombinant microorganism capable of metabolizing sucrose in which a gene encoding ?-fructofuranosidase is introduced. According to the present invention, a recombinant microorganism capable of using inexpensive sucrose as a carbon source instead of expensive glucose is provided. In addition, in a process of culturing microorganisms which have been incapable of using sucrose as a carbon source, sucrose can substitute for other carbon sources including glucose.
    Type: Application
    Filed: December 18, 2008
    Publication date: November 3, 2011
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Yup Lee, Jeong Wook Lee, Hyohak Song, Ji Mahn Kim, Sol Choi, Jin Hwan Park
  • Publication number: 20100159544
    Abstract: The present invention relates to microbial variants producing homo-succinic acid at high yields and a method for producing homo-succinic acid using the same, more particularly, to a microbial variant constructed by disrupting a lactate dehydro-genase-encoding gene (idhA) and an acetate kinase-encoding gene (ackA), as well as a method for producing homo-succinic acid at high concentration, which comprises culturing such variants using glucose as a carbon source in anaerobic conditions.
    Type: Application
    Filed: January 15, 2008
    Publication date: June 24, 2010
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Yup Lee, Ji Mahn Kim, Jeong Wook Lee, Hyohak Song, Sol Choi