Patents by Inventor Hwa-Jung Lee

Hwa-Jung 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: 20210298672
    Abstract: A wearable display device according to one or more embodiments of the present invention includes: a substrate; a first sensing unit on the substrate; and a display unit arranged on the first sensing unit and including a light emitting element that emits first light to a front side to display an image and emits second light to a rear side facing the substrate, the first sensing unit being configured to measure a bio-signal generated from a user's body using the second light reflected from the user's body.
    Type: Application
    Filed: October 28, 2020
    Publication date: September 30, 2021
    Inventors: Hwa Jung LEE, Kyung Jun LEE, Sang Hyun YOON, Han Wook CHOI
  • Patent number: 9895685
    Abstract: Disclosed herein is a method of preparing a catalyst having Pt—Pd dispersed in polymer electrolyte multilayers, suitable for use in production of hydrogen peroxide, wherein the use of the catalyst prepared by forming polymer electrolyte multilayers on an anionic resin support and performing sulfuric acid treatment and loading (insertion or attachment) of Pt—Pd particles can result in high hydrogen conversion, hydrogen selectivity and hydrogen peroxide yield for a long period of time.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: February 20, 2018
    Assignees: SK INNOVATIONS CO., LTD., SK GLOBAL CHEMICAL CO., LTD.
    Inventors: Suk Joon Hong, Yong Tak Kwon, Hwa Jung Lee, Tae Jln Kim, Dae Hyun Choo
  • Patent number: 9719989
    Abstract: The present invention relates to a method for detecting food poisoning bacteria, and more particularly, to a method for rapidly and quantitatively isolating food poisoning bacteria contents which contaminate food and the like. The method according to the present invention is characterized by including the steps of: introducing magnetic nanoparticles which can bind to bacteria into a sample for measuring the bacteria so as to bind the magnetic nanoparticles to the bacteria; isolating the magnetic nanoparticles; passing the nanoparticles which are isolated by using magnetism through a solution having high viscosity so as to separate the magnetic nanoparticles to which bacteria are bound from magnetic nanoparticles to which no bacteria are bound; and quantifying the magnetic nanoparticles to which bacteria are bound.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: August 1, 2017
    Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, REPUBLIC OF KOREA (MINISTER OF FOOD AND DRUG SAFETY)
    Inventors: Sangmin Jeon, Dong-hoon Kwon, Jin myoung Joo, Ki hwan Park, Sang-Bae Han, Hwa-Jung Lee, Kyu-Heon Kim
  • Publication number: 20150293083
    Abstract: The present invention relates to a method for detecting food poisoning bacteria, and more particularly, to a method for rapidly and quantitatively isolating food poisoning bacteria contents which contaminate food and the like. The method according to the present invention is characterized by including the steps of: introducing magnetic nanoparticles which can bind to bacteria into a sample for measuring the bacteria so as to bind the magnetic nanoparticles to the bacteria; isolating the magnetic nanoparticles; passing the nanoparticles which are isolated by using magnetism through a solution having high viscosity so as to separate the magnetic nanoparticles to which bacteria are bound from magnetic nanoparticles to which no bacteria are bound; and quantifying the magnetic nanoparticles to which bacteria are bound.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 15, 2015
    Inventors: Sangmin JEON, Dong-hoon KWON, Jin myoung JOO, Ki hwan PARK, Sang-Bae HAN, Hwa-Jung LEE, Kyu-Heon KIM
  • Publication number: 20150147267
    Abstract: Disclosed herein is a method of preparing a catalyst having Pt—Pd dispersed in polymer electrolyte multilayers, suitable for use in production of hydrogen peroxide, wherein the use of the catalyst prepared by forming polymer electrolyte multilayers on an anionic resin support and performing sulfuric acid treatment and loading (insertion or attachment) of Pt—Pd particles can result in high hydrogen conversion, hydrogen selectivity and hydrogen peroxide yield for a long period of time.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 28, 2015
    Inventors: Suk Joon HONG, Yong Tak KWON, Hwa Jung LEE, Tae JIn KIM, Dae Hyun CHOO
  • Publication number: 20140093982
    Abstract: A method and kit for measuring a concentration of an antibiotic are provided. The method of measuring a concentration of an antibiotic includes preparing magnetic particles bound to an antibiotic, preparing silica-coated fluorescent particles to which at least one antibody of the antibiotic is bound, allowing the magnetic particles to react with the silica-coated fluorescent particles, and irradiating the reacted silica-coated fluorescent particles with laser beams.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicants: Republic of Korea (Ministry of Food and Drug Safety), Industry-Academic Cooperation Foundation, Dankook University
    Inventors: Heung Bin Lim, Jung Ah Ko, Su Ji Kim, Ki Hwan Park, Kyu Heon Kim, Hwa Jung Lee, Sang Bae Han
  • Patent number: 7288552
    Abstract: The present invention relates to novel piperidine derivatives having effect of inhibiting acetylcholinesterase and aggregation of ?-amyloid, Alzheimer's disease-induced protein, and treatment for Alzheimer's disease containing the same, the piperidine derivatives represented by Formula 3.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: October 30, 2007
    Assignee: STC NARA Co., Ltd.
    Inventors: Young-Ee Kwon, Jeong-Ho Kang, Hwa-Jung Lee, Sang-Jae Lee, Do-Wan Kim, Kang-Hoon Lee, Sun-Il Han, You-Sun Yoon
  • Publication number: 20050043316
    Abstract: The present invention relates to novel piperidine derivatives having effect of inhibiting acetylcholinesterase and aggregation of ?-amyloid, Alzheimer's disease-induced protein, and treatment for Alzheimer's disease containing the same, the piperidine derivatives represented by Formula 3.
    Type: Application
    Filed: October 16, 2002
    Publication date: February 24, 2005
    Inventors: Young-Ee Kwon, Jeong-Ho Kang, Hwa-Jung Lee, Sang-Jae Lee, Do-Wan Kim, Kang-Hoon Lee, Sun-Il Han, You-Sun Yoon