Patents by Inventor Dong Tak Lee

Dong Tak 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).

  • Patent number: 12228567
    Abstract: Disclosed are a colorimetric sensor kit for screening a therapeutic agent for a neurodegenerative disease, capable of easily detecting the degradation of amyloids by a drug, and a method for screening a therapeutic agent for a neurodegenerative disease.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: February 18, 2025
    Assignee: Korea University Research and Business Foundation
    Inventors: Dae Sung Yoon, Dong Tak Lee, In Su Kim, Gyu Do Lee, Hyo Gi Jung, Yong Hwan Kim
  • Publication number: 20220099665
    Abstract: Disclosed are a colorimetric sensor kit for screening a therapeutic agent for a neurodegenerative disease, capable of easily detecting the degradation of amyloids by a drug, and a method for screening a therapeutic agent for a neurodegenerative disease.
    Type: Application
    Filed: November 1, 2019
    Publication date: March 31, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Dae Sung YOON, Dong Tak LEE, In Su KIM, GyuDo LEE, HyoGi JUNG, Yong Hwan KIM
  • Patent number: 11045119
    Abstract: The present disclosure relates to a biosensor for measuring glucose in a biological sample, which contains a filter unit formed of a cytoplasmic membrane, which allows selective permeation of glucose in a biological sample. The biosensor of the present disclosure, which contains the cytoplasmic membrane filter unit allowing selective permeation of glucose in the biological sample, exhibits high glucose detection sensitivity as compared to the commercially available blood sugar measuring sensors and also exhibits high glucose detection specificity despite the addition of signal-interfering substances such as fructose, xylose, maltose, cysteine, ascorbic acid, uric acid, galactose, etc. In addition, because he cytoplasmic membrane filter unit contained in the biosensor for measuring glucose of the present disclosure is not significantly affected by the moisture in the air, it can be applied to various products such as a disposable blood sugar test strip or an attachable or implantable glucose measuring device.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: June 29, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Dae Sung Yoon, Do Hyung Kwon, In Su Kim, Gyu Do Lee, Dong Tak Lee, Sang Won Lee
  • Publication number: 20210116448
    Abstract: The present disclosure relates to a method for measuring fibrinogen concentration in a blood sample, which enables measuring of the concentration of the fibrinogen protein present in a blood sample from the human body. The method for measuring fibrinogen concentration of the present disclosure is convenient because an enzyme is not used. In addition, an error due to a factor affecting factor affecting in-vivo enzyme activity does not occur and measuring time is decreased since measurement for reference plasma is unnecessary. Therefore, the method achieves superior accuracy, precision and reproducibility as compared to the existing technologies and can be usefully employed for measuring fibrinogen concentration in a blood sample.
    Type: Application
    Filed: April 8, 2019
    Publication date: April 22, 2021
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae Sung YOON, In Su ` KIM, Do Hyung KWON, Dong Tak LEE, Sang Won LEE, Gyu Bok LEE, Gyu Do LEE
  • Publication number: 20190029576
    Abstract: The present disclosure relates to a biosensor for measuring glucose in a biological sample, which contains a filter unit formed of a cytoplasmic membrane, which allows selective permeation of glucose in a biological sample. The biosensor of the present disclosure, which contains the cytoplasmic membrane filter unit allowing selective permeation of glucose in the biological sample, exhibits high glucose detection sensitivity as compared to the commercially available blood sugar measuring sensors and also exhibits high glucose detection specificity despite the addition of signal-interfering substances such as fructose, xylose, maltose, cysteine, ascorbic acid, uric acid, galactose, etc. In addition, because he cytoplasmic membrane filter unit contained in the biosensor for measuring glucose of the present disclosure is not significantly affected by the moisture in the air, it can be applied to various products such as a disposable blood sugar test strip or an attachable or implantable glucose measuring device.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 31, 2019
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae Sung YOON, Do-Hyung Kwon, In Su Kim, Gyu Do Lee, Dong Tak Lee, Sang Won Lee
  • Publication number: 20040048764
    Abstract: Provided is a complex salt for anti-spotting detergents, the complex salt being formed by the reaction of a photo-bleaching component having a water-soluble anionic substituent and a cationic surfactant. The complex salt is water insoluble in a stationary state, such as hand washing or pre-soaking for machine washing, so it effectively suppress the spotting of the photo-bleaching component into the interwoven webs of fabric. In addition, the complex salt can uniformly and rapidly dissolve in an agitating state, such as when machine washing, to allow the photo-bleaching component to absorb into fabric for effective bleaching and enhanced detergency.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 11, 2004
    Inventors: Dong Gyu Kim, Young Ki Sohn, Jang Hyuck Park, Won Chul Choi, Kyung Sik Joo, Dong Tak Lee, Yun Taek Jung
  • Patent number: 6106815
    Abstract: A shampoo composition containing from 0.05% to 10% by weight of capsules or particles of 0.2 to 6.0 mm in diameter which include oily substances. The composition also includes from 5% to 65% by weight of surfactants, from 0.15% to 2% by weight of copolymer of methyl vinyl ether/maleic anhydride decadiene crosspolymer and from 0.1% to 2.0% by weight of polymeric conditioners. The presence of the crosspolymer significantly enhances the dispersion and stability properties of the capsules.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: August 22, 2000
    Assignee: Cheil Jedang Corporation
    Inventors: Gil Sung Kang, In Ho Kim, Duk Bae Park, Dong Tak Lee, Hae Hoon Park