Patents by Inventor YeonWon Kim

YeonWon Kim 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: 10477680
    Abstract: The present invention relates to an ink composition for light sintering, a wiring board using the same, and a method of fabricating the wiring board. The present invention aims to provide formation of a wiring pattern without damage to thin and soft wiring boards such as a flexible printed circuit board. The present invention provides an ink composition for light sintering including copper oxide nanoparticles having copper oxide films, a reducing agent for reducing copper oxidized by light irradiation to form copper nanoparticles, a dispersing agent, a binder, and a solvent.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 12, 2019
    Assignee: Korea Electronics Technology Institute
    Inventors: Yoonjin Kim, Jinwoo Cho, Kwonwoo Shin, Yonggon Seo, Yeonwon Kim, Sanghyeon Jang, Namje Jo
  • Patent number: 10477681
    Abstract: The present invention provides a method of fabricating a wiring board and a wiring board fabricated by the method, the method including a step of screen-printing the ink composition for light sintering on a flexible board body to form a preliminary wiring pattern, a step of drying the preliminary wiring pattern, and a step of reducing and sintering the oxidized copper of the copper oxide nanoparticles, which are included in the preliminary wiring pattern, by irradiating the dried preliminary wiring pattern with light to form a wiring pattern on the board body.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 12, 2019
    Assignee: Korea Electronics Technology Institute
    Inventors: Yoonjin Kim, Jinwoo Cho, Kwonwoo Shin, Yonggon Seo, Yeonwon Kim, Sanghyeon Jang, Namje Jo
  • Publication number: 20180376593
    Abstract: The present invention provides a method of fabricating a wiring board and a wiring board fabricated by the method, the method including a step of screen-printing the ink composition for light sintering on a flexible board body to form a preliminary wiring pattern, a step of drying the preliminary wiring pattern, and a step of reducing and sintering the oxidized copper of the copper oxide nanoparticles, which are included in the preliminary wiring pattern, by irradiating the dried preliminary wiring pattern with light to form a wiring pattern on the board body.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Inventors: Yoonjin Kim, Jinwoo Cho, Kwonwoo Shin, Yonggon Seo, Yeonwon Kim, Sanghyeon Jang, Namje Jo
  • Publication number: 20180376592
    Abstract: The present invention relates to an ink composition for light sintering, a wiring board using the same, and a method of fabricating the wiring board. The present invention aims to provide formation of a wiring pattern without damage to thin and soft wiring boards such as a flexible printed circuit board. The present invention provides an ink composition for light sintering including copper oxide nanoparticles having copper oxide films, a reducing agent for reducing copper oxidized by light irradiation to form copper nanoparticles, a dispersing agent, a binder, and a solvent.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Inventors: Yoonjin Kim, Jinwoo Cho, Kwonwoo Shin, Yonggon Seo, Yeonwon Kim, Sanghyeon Jang, Namje Jo
  • Patent number: 10091875
    Abstract: The present invention relates to an ink composition for light sintering, a wiring board using the same, and a method of fabricating the wiring board. The present invention aims to provide formation of a wiring pattern without damage to thin and soft wiring boards such as a flexible printed circuit board. The present invention provides an ink composition for light sintering including copper oxide nanoparticles having copper oxide films, a reducing agent for reducing copper oxidized by light irradiation to form copper nanoparticles, a dispersing agent, a binder, and a solvent.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 2, 2018
    Assignee: Korea Electronics Technology Institute
    Inventors: Yoonjin Kim, Jinwoo Cho, Kwonwoo Shin, Yonggon Seo, Yeonwon Kim, Sanghyeon Jang, Namje Jo
  • Publication number: 20170118836
    Abstract: The present invention relates to an ink composition for light sintering, a wiring board using the same, and a method of fabricating the wiring board. The present invention aims to provide formation of a wiring pattern without damage to thin and soft wiring boards such as a flexible printed circuit board.
    Type: Application
    Filed: April 1, 2015
    Publication date: April 27, 2017
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Yoonjin Kim, Jinwoo Cho, Kwonwoo Shin, Yonggon Seo, Yeonwon Kim, Sanghyeon Jang, Namje Jo
  • Patent number: 8561771
    Abstract: A moveable catenary system for carrying a container using an electric container freight train includes: a main rail track disposed beside a freight platform; a plurality of catenary masts disposed beside the main rail track; fixed support units fixedly coupled in a cantilever shape to the catenary masts, respectively, with the exception of the catenary masts corresponding to the freight platform; vertical driving support units coupled in the cantilever shape to the catenary masts corresponding to the freight platform so as to vertically rotate the catenary masts, respectively; a fixed catenary coupled to the fixed support units such that positions at which the vertical driving support units are disposed are cut and the vertical driving support units are disposed inside and along the main rail track; a moveable catenary connected to the vertical driving support unit, the movable catenary being circularly moved in a vertical direction according to the vertical rotation of the vertical driving support units; and
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: October 22, 2013
    Inventor: YeonWon Kim
  • Publication number: 20120273316
    Abstract: A moveable catenary system for carrying a container using an electric container freight train includes: a main rail track disposed beside a freight platform; a plurality of catenary masts disposed beside the main rail track; fixed support units fixedly coupled in a cantilever shape to the catenary masts, respectively, with the exception of the catenary masts corresponding to the freight platform; vertical driving support units coupled in the cantilever shape to the catenary masts corresponding to the freight platform so as to vertically rotate the catenary masts, respectively; a fixed catenary coupled to the fixed support units such that positions at which the vertical driving support units are disposed are cut and the vertical driving support units are disposed inside and along the main rail track; a moveable catenary connected to the vertical driving support unit, the movable catenary being circularly moved in a vertical direction according to the vertical rotation of the vertical driving support units; and
    Type: Application
    Filed: September 28, 2010
    Publication date: November 1, 2012
    Inventor: YeonWon Kim