Patents by Inventor Ji-Sook Han

Ji-Sook Han 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: 9937210
    Abstract: The present invention relates to a method for isolating a fraction having anti-inflammatory or osteoarthritis-inhibiting effects by removing impurities and washing oyster shells, which are produced during a process of producing oysters, drying same, forming a powder from the oyster shells, and adding anhydrous citric acid to same for a reaction, obtaining a reaction product, and isolating a supernatant, which is obtained by centrifugally separating the reaction product, by means of ultrafiltration. By adding the anhydrous citric acid to the oyster shell chips for the reaction at a relatively low temperature, the present invention provides superior advantages, such as significantly reducing energy costs and isolating the fraction having the anti-inflammatory or osteoarthritis inhibiting effects through a simple method.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: April 10, 2018
    Assignee: Seojin Biotech Co., Ltd.
    Inventors: Hak-Ju Kim, Ji-Sook Han, Yeoun-Ju Byoun
  • Publication number: 20150238542
    Abstract: The present invention relates to a method for isolating a fraction having anti-inflammatory or osteoarthritis-inhibiting effects by removing impurities and washing oyster shells, which are produced during a process of producing oysters, drying same, forming a powder from the oyster shells, and adding anhydrous citric acid to same for a reaction, obtaining a reaction product, and isolating a supernatant, which is obtained by centrifugally separating the reaction product, by means of ultrafiltration. By adding the anhydrous citric acid to the oyster shell chips for the reaction at a relatively low temperature, the present invention provides superior advantages, such as significantly reducing energy costs and isolating the fraction having the anti-inflammatory or osteoarthritis inhibiting effects through a simple method.
    Type: Application
    Filed: December 17, 2012
    Publication date: August 27, 2015
    Inventors: Hak-Ju Kim, Ji-Sook Han, Yeoun-Ju Byoun