Patents by Inventor Yool Koo Kim

Yool Koo 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: 10717891
    Abstract: A method of applying a PTFE (polytetrafluoroethylene) solution includes a dispersion step of dispersing a diamond powder in an organic solvent using bead milling to manufacture a dispersion solution, a mixing step of mixing a silane solution with the dispersion solution to manufacture a mixture solution, an addition step of adding the PTFE solution including PTFE particles having a size of 0.1 to 6 ?m to the mixture solution to manufacture a coating solution, a coating step of applying the manufactured coating solution on a surface of a piston skirt to form a coated layer including a plurality of dimples distributed thereon, and a curing step of drying and heat-treating the coated layer.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: July 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yool Koo Kim
  • Patent number: 10494544
    Abstract: Disclosed is a coating composition including an amount of about 5 to 15 wt % of polyamide-imide (PAI), an amount of about 5 to 15 wt % of polytetrafluoroethylene (PTFE), an amount of about 0.5 to 1.5 wt % of fluorosilane, an amount of about 1 to 5 wt % of a ceramic particle, and a solvent component, wherein all the wt % are based on the total weight of the coating composition.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: December 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yool Koo Kim
  • Publication number: 20190241760
    Abstract: A method of applying a PTFE (polytetrafluoroethylene) solution includes a dispersion step of dispersing a diamond powder in an organic solvent using bead milling to manufacture a dispersion solution, a mixing step of mixing a silane solution with the dispersion solution to manufacture a mixture solution, an addition step of adding the PTFE solution including PTFE particles having a size of 0.1 to 6 ?m to the mixture solution to manufacture a coating solution, a coating step of applying the manufactured coating solution on a surface of a piston skirt to form a coated layer including a plurality of dimples distributed thereon, and a curing step of drying and heat-treating the coated layer.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Inventor: Yool Koo KIM
  • Patent number: 10301499
    Abstract: A method of applying a PTFE (polytetrafluoroethylene) solution includes a dispersion step of dispersing a diamond powder in an organic solvent using bead milling to manufacture a dispersion solution, a mixing step of mixing a silane solution with the dispersion solution to manufacture a mixture solution, an addition step of adding the PTFE solution including PTFE particles having a size of 0.1 to 6 ?m to the mixture solution to manufacture a coating solution, a coating step of applying the manufactured coating solution on a surface of a piston skirt to form a coated layer including a plurality of dimples distributed thereon, and a curing step of drying and heat-treating the coated layer.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 28, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Yool Koo Kim
  • Publication number: 20190077986
    Abstract: Disclosed is a coating composition including an amount of about 5 to 15 wt % of polyamide-imide (PAI), an amount of about 5 to 15 wt % of polytetrafluoroethylene (PTFE), an amount of about 0.5 to 1.5 wt % of fluorosilane, an amount of about 1 to 5 wt % of a ceramic particle, and a solvent component, wherein all the wt % are based on the total weight of the coating composition.
    Type: Application
    Filed: December 7, 2017
    Publication date: March 14, 2019
    Inventor: Yool Koo Kim
  • Publication number: 20180090653
    Abstract: A heat dissipating plate for a light emitting diode (LED) includes a metal thin film containing a hydroxyl functional group (—OH). A coating layer is disposed on at least one surface of the metal thin film and includes a carbon nanotube containing a hydrophilic functional group. The coating layer is attached to the metal thin film by bonding the hydroxyl functional group with the hydrophilic functional group in a hydrogen bond.
    Type: Application
    Filed: November 10, 2017
    Publication date: March 29, 2018
    Inventors: Byung Kyu CHO, Yool Koo KIM, Bong Jun ZHANG, Kwang Jin KIM
  • Publication number: 20170166773
    Abstract: A method of applying a PTFE (polytetrafluoroethylene) solution includes a dispersion step of dispersing a diamond powder in an organic solvent using bead milling to manufacture a dispersion solution, a mixing step of mixing a silane solution with the dispersion solution to manufacture a mixture solution, an addition step of adding the PTFE solution including PTFE particles having a size of 0.1 to 6 ?m to the mixture solution to manufacture a coating solution, a coating step of applying the manufactured coating solution on a surface of a piston skirt to form a coated layer including a plurality of dimples distributed thereon, and a curing step of drying and heat-treating the coated layer.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 15, 2017
    Inventor: Yool Koo KIM
  • Publication number: 20160116132
    Abstract: A heat dissipating plate for a light emitting diode (LED) includes a metal thin film containing a hydroxyl functional group (—OH). A coating layer is disposed on at least one surface of the metal thin film and includes a carbon nanotube containing a hydrophilic functional group. The coating layer is attached to the metal thin film by bonding the hydroxyl functional group with the hydrophilic functional group in a hydrogen bond.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 28, 2016
    Inventors: Byoung Kyu CHO, Yool Koo KIM, Bong Jun CHANG, Kwang Jin KIM
  • Publication number: 20100233371
    Abstract: Disclosed is a polytetrafluoroethylene coating agent having low friction and high wear resistance, obtained by dispersing nanodiamond powder in a polar organic solvent, stirring the nanodiamond dispersion solution and a silane coupling agent, and stirring the silane-treated dispersion solution and an oily polytetrafluoroethylene coating solution, in which the silane coupling agent has at least one organic functional group selected from, but not limited to, a mercapto group and an amino group, the organic functional group exhibiting high bondability to polytetrafluoroethylene. A method of preparing the polytetrafluoroethylene coating agent and a method of using the polytetrafluoroethylene coating agent are also provided.
    Type: Application
    Filed: September 23, 2009
    Publication date: September 16, 2010
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Yool Koo Kim, In Ki Hwang, Sung Moon Choi, In Woong Lyo, Seung Gyun Ahn, Joong Soo Kim, Dae Soon Lim, Joon Sung Park