Patents by Inventor Yun-kyoung Cho

Yun-kyoung 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: 20220160777
    Abstract: Provided are a method and a composition for preventing or treating atopic dermatitis through administration of monoclonal stem cells and a method for screening atopic dermatitis patients suitable for administration of monoclonal stem cells and predicting prognosis of patients. According to the method for the subfractionation culture and proliferation of stem cells of the disclosure, large quantities of desired monoclonal mesenchymal stem cells can be obtained in a short period of time through rapid proliferation of monoclonal mesenchymal stem cells. In addition, the monoclonal mesenchymal stem cells thus obtained can be administered to atopic dermatitis patients according to a prescribed administration cycle, guidelines, and dose to effectively ameliorate atopy symptoms in the patients.
    Type: Application
    Filed: March 18, 2020
    Publication date: May 26, 2022
    Applicant: SCM LIFESCIENCE CO., LTD.
    Inventors: Sun Uk SONG, Gwang Seong CHOI, Yun Kyoung CHO, Si Na KIM, Eun Kyung CHUNG
  • Patent number: 11248210
    Abstract: The present disclosure relates to a subfractionation culturing method of a stem cell and proliferation method of a monoclonal stem cell obtained using the same. According to the subfractionation culturing method of stem cells and the proliferation thereof of the exemplary embodiments of the present disclosure, it is advantage that monoclonal stem cells may be quickly obtained without contamination, and desired monoclonal stem cells may be largely obtained in a short time through the rapid proliferation, thereby being used for the preparation of stem cell-therapeutic agents.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: February 15, 2022
    Assignee: SCM LIFESCIENCE CO., LTD.
    Inventors: Sun Uk Song, Si Na Kim, Yun Kyoung Cho, Dong Sik Ham
  • Publication number: 20190136189
    Abstract: The present disclosure relates to a subfractionation culturing method of a stem cell and proliferation method of a monoclonal stem cell obtained using the same. According to the subfractionation culturing method of stem cells and the proliferation thereof of the exemplary embodiments of the present disclosure, it is advantage that monoclonal stem cells may be quickly obtained without contamination, and desired monoclonal stem cells may be largely obtained in a short time through the rapid proliferation, thereby being used for the preparation of stem cell-therapeutic agents.
    Type: Application
    Filed: July 3, 2018
    Publication date: May 9, 2019
    Applicant: SCM LIFESCIENCE CO., LTD.
    Inventors: Sun Uk Song, Si Na Kim, Yun Kyoung Cho, Dong sik Ham
  • Patent number: 8378024
    Abstract: The present invention relates to a low surface gloss styrene resin composition. The composition of the present invention is composed of (A) 80-99.9 weight % of the basic resin comprising rubber-modified styrene resin and (B) 0.1-20 weight % of syndiotactic polystyrene, the matting agent. The composition also includes (C) hydrogenated styrene block copolymer comprising styrene block and butadiene rubber block as a compatibilizer by 0.1-20 weight % for the total weight of the low surface gloss styrene resin composed of (A) the basic resin and (B) the matting agent and additionally includes (D) a plasticizer by 0.1-30 weight %. The composition of the present invention has excellent weatherability and impact-resistance in addition to the low surface gloss properties, so that it can be applied in various products, particularly exterior products for structures such as sidings and window frames, etc.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: February 19, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Yun-kyoung Cho, Seon-mo Son, Bong-keun Lee, Tae-bin Ahn, Han-jong You, Sung-tae Ahn
  • Publication number: 20100075165
    Abstract: The present invention relates to a low surface gloss styrene resin composition. The composition of the present invention is composed of (A) 80-99.9 weight % of the basic resin comprising rubber-modified styrene resin and (B) 0.1-20 weight % of syndiotactic polystyrene, the matting agent. The composition also includes (C) hydrogenated styrene block copolymer comprising styrene block and butadiene rubber block as a compatibilizer by 0.1-20 weight % for the total weight of the low surface gloss styrene resin composed of (A) the basic resin and (B) the matting agent and additionally includes (D) a plasticizer by 0.1-30 weight %. The composition of the present invention has excellent weatherability and impact-resistance in addition to the low surface gloss properties, so that it can be applied in various products, particularly exterior products for structures such as sidings and window frames, etc.
    Type: Application
    Filed: January 30, 2008
    Publication date: March 25, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Yun-kyoung Cho, Seon-mo Son, Bong-keun Lee, Tae-bin Ahn, Han-jong You, Sung-tae Ahn
  • Patent number: 7396877
    Abstract: Disclosed is a resin composition comprising (A) 100 parts by weight of a base resin comprising a rubber-modified styrene-containing graft copolymer and a styrene-containing copolymer; (B) 0.5-8 parts by weight of an acrylic rubber graft copolymer resin having an average particle size of 0.1-0.5 ?m; and (C) 0.5-8 parts by weight of a graft copolymer resin comprising an ethylene ?-olefinic copolymer rubber having an average particle size of 0.1-0.8 ?m. The thermoplastic resin composition of the present invention greatly improves chemical resistance to insulating materials, such as urethane foam, or foaming agent compounds, such as freon (CFC-11, HCFC-141b, HFC-245fa, HFC-245eb, HFC-245ca, HFC-356mffm) and cyclopentane and offers superior impact strength, whiteness and processability. It can be useful for extrusion sheets of refrigerator interiors.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: July 8, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Sung-je Cha, Sung-tae Ahn, Dong-chul Kim, Yun-kyoung Cho
  • Publication number: 20070027256
    Abstract: The present invention relates to an acrylic rubber-modified copolymer and the styrenic thermoplastics composition using the same. More particularly, the present invention relates to the styrenic thermoplastics composition having superior appearance and thermoformability, which is obtained by adding 0.5-20 parts by weight of an acrylic rubber-modified copolymer having a rubber particle size ranging from 800 to 6, 000 ?to 100 parts by weight of a resin of 10-50 parts by weight of a graft copolymer comprising rubber-modified styrene and 30-70 parts by weight of a copolymer comprising styrene.
    Type: Application
    Filed: October 8, 2004
    Publication date: February 1, 2007
    Applicant: LG CHEM. LTD.
    Inventors: Dong-chul Kim, Chan-hong Lee, Sung-je Cha, Yun-kyoung Cho, Sung-tae Ahn
  • Publication number: 20060079639
    Abstract: Disclosed is a resin composition comprising (A) 100 parts by weight of a base resin comprising a rubber-modified styrene-containing graft copolymer and a styrene-containing copolymer; (B) 0.5-8 parts by weight of an acrylic rubber graft copolymer resin having an average particle size of 0.1-0.5 ?m; and (C) 0.5-8 parts by weight of a graft copolymer resin comprising an ethylene ?-olefinic copolymer rubber having an average particle size of 0.1-0.8 ?m. The thermoplastic resin composition of the present invention greatly improves chemical resistance to insulating materials, such as urethane foam, or foaming agent compounds, such as freon (CFC-11, HCFC-141b, HFC-245fa, HFC-245eb, HFC-245ca, HFC-356mffm) and cyclopentane and offers superior impact strength, whiteness and processability. It can be useful for extrusion sheets of refrigerator interiors.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 13, 2006
    Inventors: Sung-je Cha, Sung-tae Ahn, Dong-chul Kim, Yun-kyoung Cho