Patents by Inventor Sun Ray Lee

Sun Ray 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: 10752880
    Abstract: A three-dimensional cell culture method on the basis of a biodegradable synthetic hydrogel is provided. The method may include culturing cells in a cell culture dish in a non-contact manner using a porous membrane and a biodegradable synthetic hydrogel in the culture of stem cells and primary cells.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: August 25, 2020
    Assignee: CEFO CO., LTD
    Inventors: Hyun Sook Park, Sun Ray Lee, Ji Won Yang, Seol Chu, Jang Mi Park, Hyun Jung Mo
  • Patent number: 10494601
    Abstract: The present invention relates to a method for inducing osteogenic differentiation of mesenchymal stem cells and, more particularly, to a short-time osteogenic differentiation method of culturing cells using a porous membrane and a biodegradable synthetic biogel, whereby the cells do not contact a cell culture container. The present invention can significantly shorten the induction period of osteogenic differentiation, compared to the conventional osteogenic differentiation method, and has an effect of the cells being easily separable after differentiation as well.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 3, 2019
    Assignee: CEFO CO., LTD
    Inventors: Hyun Sook Park, Sun Ray Lee, Ji Won Yang, Seol Chu, Hyun Jung Mo
  • Publication number: 20170283767
    Abstract: The present invention relates to a composition for preserving cells and a cell preservation method and, more specifically: to a composition for preserving cells, containing, as active ingredients, a plant-derived recombinant human serum albumin and a plant peptide, which maintain a high cell survival rate while maintaining animal-free and xeno-free properties and are stable without changes in cell morphology or a surface expression factor during the short term preservation of cells such as stem cells or primary cultured cells; and a cell preservation method using the same.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 5, 2017
    Inventors: Hyun Sook PARK, Sun Ray LEE, Ji Won YANG, Seol CHU, Jang Mi PARK, Hyun Jung MO
  • Publication number: 20170283768
    Abstract: The present invention relates to a method for inducing osteogenic differentiation of mesenchymal stem cells and, more particularly, to a short-time osteogenic differentiation method of culturing cells using a porous membrane and a biodegradable synthetic biogel, whereby the cells do not contact a cell culture container. The present invention can significantly shorten the induction period of osteogenic differentiation, compared to the conventional osteogenic differentiation method, and has an effect of the cells being easily separable after differentiation as well.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 5, 2017
    Inventors: Hyun Sook PARK, Sun Ray LEE, Ji Won YANG, Seol CHU, Hyun Jung MO
  • Publication number: 20170226476
    Abstract: The present invention relates to a composition for preserving cells and a method for preserving cells and, more specifically, to: a composition for preserving cells, containing, as active ingredients, plant-derived recombinant human serum albumin and plant peptides, wherein the composition maintains a high cellular survival rate while maintaining animal-free and xeno-free properties and is stable without changes in cellular morphology or surface expression factors in the short-term preservation of cells such as stem cells or primary cultured cells; and a method for preserving cells by using the same.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 10, 2017
    Inventors: Hyun Sook PARK, Sun Ray LEE, Jin Yup LEE, Hyun Jung MO
  • Patent number: 8257973
    Abstract: The present invention relates to a method for co-culture of stem cells using feeder cells, more particularly to a method for culturing stem cells by using a membrane having a number of pores to separate stem cells and feeder cells. In the present invention, the culture condition of stem cells optimized is provided, in which stem cells and feeder cells are cultivated independently in separate spaces while permeating essential substances selectively. The stem cells prepared in the present invention continue to remain indifferent and be supported by feeder cells until needing being sub-cultured. In addition, the stem cells even for therapeutic use can be obtained without any contaminant since not pretreated with a cytostatic agent such as mitomycin or irradiated. Therefore, the method for co-culturing stem cells by using a membrane of the present invention can be widely used for clinical applications.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 4, 2012
    Assignee: Modern Cell & Tissue Technologies, Inc.
    Inventors: Hyun Sook Park, Sun Ray Lee