Patents by Inventor Uk Lee

Uk Lee 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: 20250042737
    Abstract: The present disclosure relates to a method and a system for purifying an aqueous hydrogen peroxide solution. According to the present disclosure, it is possible to provide a method and a system for purifying an aqueous hydrogen peroxide solution, which may achieve the purity required in fine chemical fields such as the semiconductor industry field by preventing layer separation of a mixed ion-exchange resin consisting of a cation-exchange resin and an anion-exchange resin and reducing the leaching of ions from the resin during a purification process.
    Type: Application
    Filed: July 29, 2024
    Publication date: February 6, 2025
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Hong-Ki MIN, Dong-Seok SEO, Uk LEE
  • Publication number: 20250042738
    Abstract: The present disclosure relates to a method and an apparatus for purifying an aqueous hydrogen peroxide solution. According to the present disclosure, it is possible to provide a method and an apparatus for purifying an aqueous hydrogen peroxide solution, which may control a generated gas because there is no partial drying of an ion-exchange resin when purifying the aqueous hydrogen peroxide solution using the ion-exchange resin, require no facility expansion, and may provide a high-purity aqueous hydrogen peroxide solution.
    Type: Application
    Filed: July 29, 2024
    Publication date: February 6, 2025
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Hong-Ki MIN, Dong-Seok SEO, Uk LEE
  • Publication number: 20250034068
    Abstract: The present disclosure relates to an organic solvent purification process and a dehydration system for obtaining a high-purity organic solvent, and according to the present disclosure, a high-purity organic solvent may be obtained by removing an inflow of impurities during a dehydration process.
    Type: Application
    Filed: July 26, 2024
    Publication date: January 30, 2025
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Hwan-Min KIM, Dong-Seok SEO, Uk LEE
  • Publication number: 20250034067
    Abstract: The present disclosure relates to a purification process of an organic solvent, the process including: (a) performing distillation by supplying an organic solvent to a distillation column; and (b) discharging a portion of the organic solvent including impurities through a side discharge stream connected to a lower part of the distillation column, wherein the discharging of (b) discharges a portion of the organic solvent including impurities at a flow rate of 0.5% to 10% with respect to an input flow rate of the organic solvent supplied to the distillation column in (a).
    Type: Application
    Filed: July 25, 2024
    Publication date: January 30, 2025
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Hwan-Min KIM, Dong-Seok SEO, Uk LEE
  • Publication number: 20230125634
    Abstract: A method for predicting a developmental disease is disclosed. According to one aspect of the present invention, disclosed is a method for predicting a developmental disease including preparing a list of multiple symptoms and a list of multiple diseases, respectively, matching the symptoms with the diseases related to the symptoms, differentially setting correlation scores for the symptoms matched with the diseases according to prevalence rates of the diseases for the symptoms, for each disease, providing a user with the list of multiple symptoms and receiving, from the user, at least one selection of the symptoms that correspond to the user, and deriving predicted disease information in an order of a highest sum score by summing up scores related to the symptoms selected by the user for each disease and calculating the sum score.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 27, 2023
    Inventors: Uk LEE, Hoon Jae CHUNG, Chan YOON
  • Publication number: 20230126896
    Abstract: A method for providing basis data for diagnosis is disclosed.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 27, 2023
    Inventors: Uk LEE, Hoon Jae CHUNG, Chan YOON
  • Publication number: 20230131979
    Abstract: A method for generating a discomfort graph is disclosed. According to one aspect of the present invention, disclosed is a method for generating a discomfort graph including receiving information on a discomfort start point from a user; dividing a discomfort period from the discomfort start point to a present point into a plurality of discomfort sections; receiving from the user discomfort information obtained by quantifying discomfort levels for the respective discomfort sections; and generating a discomfort graph showing a change in the user's discomfort during the discomfort period based on the discomfort information.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 27, 2023
    Inventors: Uk LEE, Hoon Jae CHUNG, Chan YOON
  • Patent number: 5983603
    Abstract: Systems and methods reorient head-to-head aligned leading and following articles to from an array of alternating head-to-tail oriented articles. The leading and following articles are initially captured at their respective head portions, and thereafter laterally shifted relative to one another. The laterally shifted leading and following articles may then be pivoted so that their respective tail portions swing towards one another to thereby form an array of alternating head-to-tail oriented articles. A moveable transfer tray may be brought into a position below the captured array of head-to-tail oriented articles so that upon their release, the array of a head-to-tail oriented articles falls by gravity and into the awaiting tray therebelow. The tray may then be retracted so as to carry the array of head-to-tail articles to a remote site, preferably above a transfer conveyor.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: November 16, 1999
    Assignee: Sweetheart Cup Co., Inc.
    Inventors: Uk Lee, Mark L. West, Kenneth H. Bealer
  • Patent number: 5918446
    Abstract: Systems and methods reorient head-to-head aligned leading and following articles to from an array of alternating head-to-tail oriented articles. The leading and following articles are initially captured at their respective head portions, and thereafter laterally shifted relative to one another. The laterally shifted leading and following articles may then be pivoted so that their respective tail portions swing towards one another to thereby form an array of alternating head-to-tail oriented articles. A moveable transfer tray may be brought into a position below the captured array of head-to-tail oriented articles so that upon their release, the array of a head-to-tail oriented articles falls by gravity and into the awaiting tray therebelow. The tray may then be retracted so as to carry the array of head-to-tail articles to a remote site, preferably above a transfer conveyor.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: July 6, 1999
    Assignee: Sweetheart Cup Co., Inc.
    Inventors: Uk Lee, Mark L. West, Kenneth H. Bealer