Patents by Inventor Han Weon CHO

Han Weon CHO 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: 20220193269
    Abstract: The present invention relates to a method for preparing a nano diagnostic agent capable of selective staining of abnormal inflammatory tissues or tumor tissues. The method for preparing a nano diagnostic agent, according to the present invention, is characterized by comprising: a step of forming a first mixture by mixing polysorbate 80, soybean oil, and a water-insoluble staining material; a step of forming a second mixture by mixing and then heating the first mixture and a triblock copolymer; a step of forming a nano platform solid by cooling the second mixture; a step of forming a third mixture by mixing a solvent with the nano platform solid; a step of removing impurities from the third mixture; and a step of forming a nano-composite by freeze-drying the third mixture from which the impurities are removed.
    Type: Application
    Filed: October 28, 2019
    Publication date: June 23, 2022
    Inventors: Keun Sang OH, Han Weon CHO, Chang Soon HWANG, Sun Jong KIM, Hye Sook CHUNG, Hye Jin LEE
  • Publication number: 20220168233
    Abstract: The present disclosure relates to a temperature-sensitive nanoparticle/hydrogel complex, and more particularly, the temperature-sensitive nanoparticle/hydrogel complex for sustained-release drug release that can delay the drug release rate at the administration site, thereby maximizing the drug treatment efficacy at the local site by the interaction between the drug and the nanoparticles as well as the interaction between the drug and the hydrogel when mixing a drug-free nanoparticle/hydrogel complex and a predetermined drug.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 2, 2022
    Inventors: Keun Sang OH, Han Weon CHO, Chang Soon HWANG, Sun Jong KIM, Hye Sook CHUNG, Eun Sook KIM
  • Publication number: 20210353545
    Abstract: A method for preparing a nanoparticle/hydrogel composite for a drug carrier according to one embodiment of the present invention comprises the steps of: forming stabilized lipid-based nanoparticles by irradiating an ultrasonic wave on a mixture of phosphatidylcholine and polysorbate 80 and then mixing a first polymer and freeze-drying same; and forming a lipid-based nanoparticle/hydrogel composite by mixing a second polymer and hyaluronic acid with the lipid-based nanoparticles and freeze-drying same.
    Type: Application
    Filed: October 29, 2018
    Publication date: November 18, 2021
    Inventors: Keun Sang OH, Han Weon CHO, Chang Soon HWANG, Sun Jong KIM, Hye Sook CHUNG
  • Patent number: 10391233
    Abstract: Disclosed is a drug delivery kit, including an apparatus for preparing a drug delivery system, which includes therein a drug carrier in a gel phase or a solid phase under the airtight condition, and has therein a mixing space configured such that a drug for forming a drug delivery system with the drug carrier is injected from the outside and is mixed with the drug carrier, and a syringe for injecting the drug into the apparatus for preparing a drug delivery system. Also, an apparatus for preparing a drug delivery system, which can be applied to the drug delivery kit, and a method of preparing a drug delivery system using the apparatus are provided. The drug delivery system can be easily prepared on site, whereby the drug can be delivered in vivo.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 27, 2019
    Assignee: TGEL BIO CO., LTD.
    Inventors: Changsoon Hwang, Sun Jong Kim, Han Weon Cho, Sunhee Ham, Hyesook Chung
  • Publication number: 20170274137
    Abstract: Disclosed is a drug delivery kit, including an apparatus for preparing a drug delivery system, which includes therein a drug carrier in a gel phase or a solid phase under the airtight condition, and has therein a mixing space configured such that a drug for forming a drug delivery system with the drug carrier is injected from the outside and is mixed with the drug carrier, and a syringe for injecting the drug into the apparatus for preparing a drug delivery system. Also, an apparatus for preparing a drug delivery system, which can be applied to the drug delivery kit, and a method of preparing a drug delivery system using the apparatus are provided. The drug delivery system can be easily prepared on site, whereby the drug can be delivered in vivo.
    Type: Application
    Filed: April 19, 2016
    Publication date: September 28, 2017
    Inventors: Changsoon HWANG, Sun Jong KIM, Han Weon CHO, Sunhee HAM, Hyesook CHUNG