Patents by Inventor Won II Choi

Won II Choi 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).

  • Device for producing nano particles and preparation method of nano particles using the same
    Patent number: 11911519
    Abstract: A device for producing nanoparticles includes: a first connector comprising a first supply tube fitting member, a second supply tube fitting member, and a first discharge tube fitting member; a first tube having one side connected to the first supply tube fitting member; a second tube having one side connected to the second supply tube fitting member; a first conduit having one side connected to the first discharge tube fitting member; a first supply connected to another side of the first tube to supply a first material to the first conduit; and a second supply connected to another side of the second tube to supply a second material to the first conduit.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: February 27, 2024
    Assignees: SOONCHUNHYANG UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION, KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY
    Inventors: Jong Min Lim, Daekyung Sung, Won II Choi, Hyeon Woo Han, Sehee Jeong, Yoonhee Na, Jiseob Woo
  • DEVICE FOR PRODUCING NANO PARTICLES AND PREPARATION METHOD OF NANO PARTICLES USING THE SAME
    Publication number: 20220211635
    Abstract: A device for producing nanoparticles includes: a first connector comprising a first supply tube fitting member, a second supply tube fitting member, and a first discharge tube fitting member; a first tube having one side connected to the first supply tube fitting member; a second tube having one side connected to the second supply tube fitting member; a first conduit having one side connected to the first discharge tube fitting member; a first supply connected to another side of the first tube to supply a first material to the first conduit; and a second supply connected to another side of the second tube to supply a second material to the first conduit.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 7, 2022
    Applicants: SOONCHUNHYANG UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION, KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY
    Inventors: Jong Min LIM, Daekyung SUNG, Won II CHOI, Hyeon Woo HAN, Sehee JEONG, Yoonhee NA, Jiseob WOO
  • STRETCHABLE FILMS, METHODS OF MANUFACTURING THE SAME AND DISPLAY DEVICES INCLUDING THE SAME
    Publication number: 20190148655
    Abstract: A stretchable film includes a first region including a plurality of first patterns having a concave polygonal shape. The stretchable film also includes a second region including a plurality of second patterns having a concave polygonal shape. The stretchable film further includes a buffer region between the first region and the second region.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Inventors: Hye-Jin JOO, Won-II CHOI, Jong-Ho HONG
  • STRETCHABLE FILMS, METHODS OF MANUFACTURING THE SAME AND DISPLAY DEVICES INCLUDING THE SAME
    Publication number: 20160104850
    Abstract: A stretchable film includes a first region including a plurality of first patterns having a concave polygonal shape. The stretchable film also includes a second region including a plurality of second patterns having a concave polygonal shape. The stretchable film further includes a buffer region between the first region and the second region.
    Type: Application
    Filed: July 27, 2015
    Publication date: April 14, 2016
    Inventors: Hye-Jin JOO, Won-II CHOI, Jong-Ho HONG
  • NANOCARRIER HAVING ENHANCED SKIN PERMEABILITY, CELLULAR UPTAKE AND TUMOUR DELIVERY PROPERTIES
    Publication number: 20120087859
    Abstract: The present invention relates to a biopolymer-modified nanocarrier in which chitosan is bound to a water-soluble biocompatible polymer that has been crosslinked via a photo-crosslinkable functional group; wherein the chitosan-modified nanocarrier has a diameter which changes in accordance with changes in temperature, has enhanced skin permeability or cellular uptake and selective delivery to cancer tissue as compared with a bare nanocarrier to which chitosan has not been bound, and exhibits characteristics that are advantageous in photothermal therapy. The chitosan-modified nanocarrier of the present invention exhibits highly superior efficacy as a transdermal carrier, since the skin permeability is enhanced to a significant level as compared with a bare nanocarrier that has no chitosan.
    Type: Application
    Filed: January 21, 2011
    Publication date: April 12, 2012
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gi Yoong Tae, Won II Choi, Young Ha Kim, Ja-Young Kim, Jong Hyun Lee