Patents by Inventor Seung Il Cha

Seung Il Cha 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).

  • Flexible dye-sensitized solar cell using fiber
    Patent number: 9842705
    Abstract: A flexible dye-sensitized solar cell includes: a fiber layer formed of nanofibers; a conductive electrode layer formed on one side of the fiber layer; a photoelectrode layer formed on the conductive electrode layer; a counter electrode layer formed on the other side of the fiber layer; a sealing member for enclosing the fiber layer, the conductive electrode layer, the counter electrode layer and the photoelectrode layer therein so as to seal said layers from the outside; and an electrolyte infiltrated into the fiber layer. A cell body in which an electrode and a photoelectrode are formed on one surface of the fiber that contains an electrolyte therein and a counter electrode is formed on the other side of the fiber is sealed with a polymer film, thus forming a flexible solar cell having an excellent sealing structure for preventing the electrolyte from leaking out of the cell even when pressure is externally applied.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: December 12, 2017
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Seung-il Cha, Yu-heon Kim, Seon-hee Seo, Dong-yoon Lee, Kyu-hyun Haung
  • FLEXIBLE DYE-SENSITIZED SOLAR CELL USING FIBER
    Publication number: 20140076385
    Abstract: A flexible dye-sensitized solar cell includes: a fiber layer formed of nanofibers; a conductive electrode layer formed on one side of the fiber layer; a photoelectrode layer formed on the conductive electrode layer; a counter electrode layer formed on the other side of the fiber layer; a sealing member for enclosing the fiber layer, the conductive electrode layer, the counter electrode layer and the photoelectrode layer therein so as to seal said layers from the outside; and an electrolyte infiltrated into the fiber layer. A cell body in which an electrode and a photoelectrode are formed on one surface of the fiber that contains an electrolyte therein and a counter electrode is formed on the other side of the fiber is sealed with a polymer film, thus forming a flexible solar cell having an excellent sealing structure for preventing the electrolyte from leaking out of the cell even when pressure is externally applied.
    Type: Application
    Filed: November 21, 2013
    Publication date: March 20, 2014
    Applicant: Korea Electrotechnology Research Institute
    Inventors: Seung-il Cha, Yu-heon Kim, Seon-hee Seo, Dong-yoon Lee, Kyu-hyun Haung
  • Ceramic nanocomposite powders reinforced with carbon nanotubes and their fabrication process
    Patent number: 7807092
    Abstract: The invention relates to methods for fabricating ceramic nanocomposite powders, comprising a ceramic matrix and carbon nanotubes homogeneously dispersed in the ceramic matrix. The ceramic nanocomposite powders of the invention can prevent property deterioration due to agglomeration of carbon nanotubes.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: October 5, 2010
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Soon Hyung Hong, Seung Il Cha, Kyung Tae Kim, Kyong Ho Lee, Chan Bin Mo
  • Method of producing metal nanocomposite powder reinforced with carbon nanotubes and the power prepared thereby
    Patent number: 7217311
    Abstract: The present invention relates to a metal nanocomposite powder reinforced with carbon nanotubes and to a process of producing a metal nanocomposite powder homogeneously reinforced with carbon nanotubes in a metal matrix powder.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 15, 2007
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Soon Hyung Hong, Seung Il Cha, Kyung Tae Kim, Seong Hyun Hong
  • Ceramic nanocomposite powders reinforced with carbon nanotubes and their fabrication process
    Publication number: 20040217520
    Abstract: The invention relates to methods for fabricating ceramic nanocomposite powders, comprising a ceramic matrix and carbon nanotubes homogeneously dispersed in the ceramic matrix. The ceramic nanocomposite powders of the invention can prevent property deterioration due to agglomeration of carbon nanotubes.
    Type: Application
    Filed: February 19, 2004
    Publication date: November 4, 2004
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Soon Hyung Hong, Seung Il Cha, Kyung Tae Kim, Kyong Ho Lee, Chan Bin Mo