Patents by Inventor Jung Ki JO

Jung Ki JO 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: 20200275951
    Abstract: An access sheath is provided. The access sheath comprises: an outer sheath extending to be long in one direction, and having an insertion space formed in a lengthwise direction; and an inner sheath drawn into the insertion space of the outer sheath, and having a plurality of balloons, wherein the outer sheath comprises: an outer body having a cutting gap formed along the lengthwise direction of the outer sheath; and an elastic connection part filled in the cutting gap so as to connect a cutting area of the outer body, and provided as an elastic material more flexible than that of the outer body, wherein the elastic connection part expands and the diameter of the outer body increases according to an expansion of the balloons.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 3, 2020
    Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Jung Ki JO, Tae Ho LIM, Sung Yul PARK, Hae Young PARK, Yong Tae KIM, Hong Sang MOON, Hong Yong CHOI, Seung Wook LEE, Yoon Je LEE
  • Patent number: 10662132
    Abstract: The present invention relates to a method of producing ethylene by separately collecting ethane and ethylene which are by-products of a propylene preparation process using propane dehydrogenation reaction and also combining an existing propylene preparation process with a process of converting ethane to ethylene. According to the present invention, valuable ethylene may be produced by converting most of ethane and ethylene, i.e., by-products of a propane dehydrogenation process, into ethylene without using the ethane as fuel, thereby improving process economic efficiency. Furthermore, a product line in the process of propane dehydrogenation reaction may be changed from a propylene product alone into two products, i.e., propylene and ethylene, and thus the operating conditions of a propylene dehydrogenation reactor and the operating conditions of a de-ethanizer may be adjusted according to the market situation, thereby increasing the production proportion of a favorable product line.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: May 26, 2020
    Assignee: HYOSUNG CHEMICAL CORPORATION
    Inventors: Bu Young Jo, Won Il Kim, Tae Wan Kim, Jong Chan Jang, Young Gyo Choi, Jung Ill Cho, Jong Ki Kim
  • Publication number: 20190194094
    Abstract: The present invention relates to a method of producing ethylene by separately collecting ethane and ethylene which are by-products of a propylene preparation process using propane dehydrogenation reaction and also combining an existing propylene preparation process with a process of converting ethane to ethylene. According to the present invention, valuable ethylene may be produced by converting most of ethane and ethylene, i.e., by-products of a propane dehydrogenation process, into ethylene without using the ethane as fuel, thereby improving process economic efficiency. Furthermore, a product line in the process of propane dehydrogenation reaction may be changed from a propylene product alone into two products, i.e., propylene and ethylene, and thus the operating conditions of a propylene dehydrogenation reactor and the operating conditions of a de-ethanizer may be adjusted according to the market situation, thereby increasing the production proportion of a favorable product line.
    Type: Application
    Filed: June 26, 2017
    Publication date: June 27, 2019
    Inventors: Bu Young JO, Won Il KIM, Tae Wan KIM, Jong Chan JANG, Young Gyo CHOI, Jung Ill CHO, Jong Ki KIM