Patents by Inventor Youngha JUN

Youngha JUN 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: 20200020956
    Abstract: A channel forming system of fuel cell separator is provided. The channel forming system includes a composite molded body of graphite or graphite and resin that comprises the fuel cell separator; and a channel forming tool with rotary drive for the composite molded body. The channel forming tool includes a cylindrical body; and a grooving tool. The grooving tool includes machining blades in the shape of groove which are manufactured as workpiece shape of the channel and regularly arranged in lines on the external circumferential surface along the major axis of the cylindrical body, and as the channel forming tool rotates against the composite molded body, channels are created on the whole surface of one side of the composite molded body.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 16, 2020
    Applicant: J&L Tech Co., Ltd.
    Inventors: Youngha JUN, Ki Ho YEO
  • Publication number: 20160138171
    Abstract: The present invention proposed manufacturing device of coating layers with good conductivity and corrosion resistance at high productivity comprising etching the oxide layer on the stainless steel substrate by plasma etching to activate the surface and prevent from decreasing it's conductivity, coating metal nitrides like CrN or TiN in nano size thickness on the etched surface and coating carbon layer at nano size thickness on top of it. According to the present invention, it is possible to produce manufacture fuel cell bipolar plate, electrode material and stainless steel with reinforced conductivity and corrosion resistance in mass.
    Type: Application
    Filed: October 16, 2015
    Publication date: May 19, 2016
    Inventors: Youngha Jun, Jaimoo Yoo, Kiho Yeo, Eui Chul Shin
  • Patent number: 9267201
    Abstract: The invention is upon anti-static wrapper; specifically upon a new technology to manufacture anti-static wrapper using new materials which is different from those manufacture by spreading a surfactant or metallic materials. The aim of this invention is to manufacture a new and semi-permanent anti-static wrapper with excellent electric dissipation and adhesion to polymer film by depositing DLC film on polymer film. This invention also supplies the magnetic enhancing ion gun (MEIG) depositing device and high productive Roll-to-Roll device in which DLC film can be deposited on polymer film.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 23, 2016
    Assignee: J&L Tech Co., Ltd.
    Inventors: Youngha Jun, Jaimoo Yoo, Kiho Yeo, Jongchul Moon
  • Publication number: 20140305793
    Abstract: The invention is upon anti-static wrapper; specifically upon a new technology to manufacture anti-static wrapper using new materials which is different from those manufacture by spreading a surfactant or metallic materials. The aim of this invention is to manufacture a new and semi-permanent anti-static wrapper with excellent electric dissipation and adhesion to polymer film by depositing DLC film on polymer film. This invention also supplies the magnetic enhancing ion gun (MEIG) depositing device and high productive Roll-to-Roll device in which DLC film can be deposited on polymer film.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Applicant: J&L TECH CO., LTD.
    Inventors: Youngha JUN, Jaimoo YOO, Kiho YEO, Jongchul MOON
  • Publication number: 20140227631
    Abstract: The present invention proposed manufacturing method of coating layers with good conductivity and corrosion resistance at high productivity comprising etching the oxide layer on the stainless steel substrate by plasma etching to activate the surface and prevent from decreasing it's conductivity, coating metal nitrides like CrN or TiN in nano size thickness on the etched surface and coating carbon layer at nano size thickness on top of it. According to the present invention, it is possible to produce manufacture fuel cell bipolar plate, electrode material and stainless steel with reinforced conductivity and corrosion resistance in mass.
    Type: Application
    Filed: February 9, 2013
    Publication date: August 14, 2014
    Inventors: Youngha Jun, Jaimoo Yoo, Kiho Yeo, Shin Eui Chul
  • Publication number: 20120021201
    Abstract: The invention is upon anti-static wrapper; specifically upon a new technology to manufacture anti-static wrapper using new materials which is different from those manufacture by spreading a surfactant or metallic materials. The aim of this invention is to manufacture a new and semi-permanent anti-static wrapper with excellent electric dissipation and adhesion to polymer film by depositing DLC film on polymer film. This invention also supplies the magnetic enhancing ion gun (MEIG) depositing device and high productive Roll-to-Roll device in which DLC film can be deposited on polymer film.
    Type: Application
    Filed: June 22, 2011
    Publication date: January 26, 2012
    Applicant: J&L TECH CO., LTD.
    Inventors: Youngha JUN, Jaimoo YOO, Kiho YEO, Jongchul MOON