Patents by Inventor Sun Ae Hwang

Sun Ae Hwang 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).

  • Ionic liquid containing divalent cation and monovalent anion and lubricant composition comprising same
    Patent number: 11091718
    Abstract: Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: August 17, 2021
    Assignees: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.
    Inventors: Sang Hye Shin, Ha Na Song, Yu Na Shim, Sun Ae Hwang
  • IONIC LIQUID CONTAINING DIVALENT CATION AND MONOVALENT ANION AND LUBRICANT COMPOSITION COMPRISING SAME
    Publication number: 20210087490
    Abstract: Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.
    Type: Application
    Filed: July 21, 2020
    Publication date: March 25, 2021
    Inventors: Sang Hye SHIN, Ha Na SONG, Yu Na SHIM, Sun Ae HWANG
  • Light diffusion film and method for manufacturing the same
    Publication number: 20100151204
    Abstract: A light diffusion film includes a thermoplastic resin, wherein a surface of the light diffusion film has an embossed pattern thereon, and the surface of the light diffusion film having the embossed pattern has a surface roughness (Ra) of about 0.5 ?m to about 3 ?m and a height distribution index (HDI) of about 3 ?m to about 8 ?m.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 17, 2010
    Inventors: Jin Woo Lee, Bang Duk Kim, Sei Jin Oh, Chang Gyu Im, Sun Ae Hwang