Patents by Inventor Yeob Lee

Yeob 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).

  • Patent number: 8987164
    Abstract: A semiconductor of which a substance such as a semiconductor photocatalyst is uniformly coated on the surface thereof with a graphitic carbon film and a method of fabricating the same are disclosed. According to the inventive method, a graphitic carbon film having a thickness of 1 nm or less is uniformly formed on the surface of the semiconductor by performing hydrothermal synthesis and pyrolysis on glucose, so as to keep the original structure crystallinity of the semiconductor photocatalyst to be a support of the carbon film.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: March 24, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku Kang, Dong-Ki Lee, Kyu-Sung Han, Weon-Ho Shin, Jung-Woo Lee, Jung-Hoon Choi, Kyung-Min Choi, Yeob Lee
  • Publication number: 20140021589
    Abstract: A semiconductor of which a substance such as a semiconductor photocatalyst is uniformly coated on the surface thereof with a graphitic carbon film and a method of fabricating the same are disclosed. According to the inventive method, a graphitic carbon film having a thickness of 1 nm or less is uniformly formed on the surface of the semiconductor by performing hydrothermal synthesis and pyrolysis on glucose, so as to keep the original structure crystallinity of the semiconductor photocatalyst to be a support of the carbon film.
    Type: Application
    Filed: December 7, 2012
    Publication date: January 23, 2014
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku KANG, Dong-Ki LEE, Kyu-Sung HAN, Weon-Ho SHIN, Jung-Woo LEE, Jung-Hoon CHOI, Kyung-Min CHOI, Yeob LEE
  • Patent number: 8329769
    Abstract: Disclosed is a method for synthesis of micro-porous triple-bond based polymer networks using acetylene gas. According to the disclosed methods for synthesis of micro-porous triple-bond based polymer networks, acetylene gas interconnects building units having iodine and/or bromine functional groups by coupling reactions to provide micro-porous triple-bond based polymer networks.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: December 11, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku Kang, Jung-Hoon Choi, Kyung-Min Choi, Hyung-Joon Jeon, Yoon-Jeong Choi, Yeob Lee
  • Patent number: 8110255
    Abstract: The present invention discloses a method for preparation of a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, comprising: preparing carbon nitride nanotubes by plasma chemical vapor deposition (CVD); dissolving the prepared carbon nitride nanotubes in triethyleneglycol to form solution and adding Fe (acetylacetonate)3 to the solution to obtain a mixture; and heating and cooling the mixture to form a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, in which the carbon nitride nanotubes are doped with magnetite nanoparticles.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: February 7, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku Kang, Jung-Woo Lee, Ravindranath Viswan, Yoon-Jung Choi, Yeob Lee, Se-Yun Kim
  • Publication number: 20110152393
    Abstract: Disclosed is a method for synthesis of micro-porous triple-bond based polymer networks using acetylene gas. According to the disclosed methods for synthesis of micro-porous triple-bond based polymer networks, acetylene gas interconnects building units having iodine and/or bromine functional groups by coupling reactions to provide micro-porous triple-bond based polymer networks.
    Type: Application
    Filed: June 22, 2010
    Publication date: June 23, 2011
    Inventors: Jeung-Ku KANG, Jung-Hoon CHOI, Kyung-Min CHOI, Hyung-Joon JEON, Yoon-Jeong CHOI, Yeob LEE
  • Publication number: 20110110848
    Abstract: Disclosed is a titanate nanostructure, especially, represented by a chemical formula of AaBbTixOy wherein A and B are alkaline metals and 0?a?9, 0?b?9, 1?a+b?18, 1?x?10 and 2?y?20 with a, b, x and y each being an integer. A method for using the titanate nanostructure as a hydrogen storage medium is also provided.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 12, 2011
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung-Ku Kang, Jung-Woo Lee, Kyu-Sung Han, Yeob Lee, Dong-Ki Lee
  • Publication number: 20110009258
    Abstract: Disclosed is a titanate nanostructure, especially, represented by a chemical formula of NaKTi3O7. A method for preparation of a titanate nanostructure is also provided. The method includes mixing titanium dioxide powder with an alkaline solution to prepare a titanium dioxide solution; and carrying out hydrothermal synthesis of the prepared titanium dioxide solution at a temperature of 120° C. to 180° C. for 12 to 72 hours.
    Type: Application
    Filed: September 9, 2009
    Publication date: January 13, 2011
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku Kang, Jung-Woo Lee, Kyu-Sung Han, Yeob Lee, Dong-Ki Lee
  • Publication number: 20100310789
    Abstract: The present invention discloses a method for preparation of a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, comprising: preparing carbon nitride nanotubes by plasma chemical vapor deposition (CVD); dissolving the prepared carbon nitride nanotubes in triethyleneglycol to form solution and adding Fe (acetylacetonate)3 to the solution to obtain a mixture; and heating and cooling the mixture to form a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, in which the carbon nitride nanotubes are doped with magnetite nanoparticles.
    Type: Application
    Filed: April 21, 2010
    Publication date: December 9, 2010
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung-Ku Kang, Jung-Woo Lee, Ravindranath Viswan, Yoon-Jeong Choi, Yeob Lee, Se-Yun Kim