Patents by Inventor Ji Eun Namgoong

Ji Eun Namgoong 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).

  • Polyvinyl chloride resin and method of preparing the same
    Patent number: 9902817
    Abstract: Disclosed herein is a polyvinyl chloride resin, including: a first particle group having a particle diameter of 0.01 ?m or more and less than 1 ?m; and a second particle group having a particle diameter of 1 to 10 ?m, wherein the volume ratio of the first particle group to the second particle group is 1:0.4 to 1:1.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: February 27, 2018
    Assignee: Hanwha Chemical Corporation
    Inventors: Jeong Hwan Ko, Jung Ho Kong, Ji Eun Namgoong
  • POLYVINYL CHLORIDE RESIN AND METHOD OF PREPARING THE SAME
    Publication number: 20150274901
    Abstract: Disclosed herein is a polyvinyl chloride resin, including: a first particle group having a particle diameter of 0.01 ?m or more and less than 1 ?m; and a second particle group having a particle diameter of 1 to 10 ?m, wherein the volume ratio of the first particle group to the second particle group is 1:0.4 to 1:1.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 1, 2015
    Applicant: Hanwha Chemical Corporation
    Inventors: Jeong Hwan Ko, Jung Ho Kong, Ji Eun Namgoong