Patents by Inventor Dae Kyun Chung

Dae Kyun Chung 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: 20200255795
    Abstract: The present disclosure relates to a method for preparing an aglycone or hydrolyzed glycoside converted from a glycoside and, specifically, to a method for preparing an aglycone or hydrolyzed glycoside from a glycoside by converting a glycoside into an aglycone form or hydrolyzed glycoside by using a microorganism producing ?-glycosidase, and then recovering the aglycone or hydrolyzed glycoside accumulated in the cells of the microorganism.
    Type: Application
    Filed: April 26, 2020
    Publication date: August 13, 2020
    Inventors: Dae Kyun Chung, Hangeun Kim, Seung Su Lee, Bong Jun Jung, Hye Rim Kim, Yoon Doo Lee, Jae Yeon Park, Boram Jeon, Seong Jae Kim
  • Patent number: 10676708
    Abstract: The present disclosure relates to a method for preparing an aglycone or hydrolyzed glycoside converted from a glycoside and, specifically, to a method for preparing an aglycone or hydrolyzed glycoside from a glycoside by converting a glycoside into an aglycone form or hydrolyzed glycoside by using a microorganism producing ?-glycosidase, and then recovering the aglycone or hydrolyzed glycoside accumulated in the cells of the microorganism.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: June 9, 2020
    Assignee: RNA INC.
    Inventors: Dae Kyun Chung, Hangeun Kim, Seung Su Lee, Bong Jun Jung, Hye Rim Kim, Yoon Doo Lee, Jae Yeon Park, Boram Jeon, Seong Jae Kim
  • Publication number: 20170306289
    Abstract: The present disclosure relates to a method for preparing an aglycone or hydrolyzed glycoside converted from a glycoside and, specifically, to a method for preparing an aglycone or hydrolyzed glycoside from a glycoside by converting a glycoside into an aglycone form or hydrolyzed glycoside by using a microorganism producing ?-glycosidase, and then recovering the aglycone or hydrolyzed glycoside accumulated in the cells of the microorganism.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 26, 2017
    Applicant: RNA INC.
    Inventors: Dae Kyun Chung, Hangeun Kim, Seung Su Lee, Bong Jun Jung, Hye Rim Kim, Yoon Doo Lee, Jae Yeon Park, Boram Jeon, Seong Jae Kim
  • Publication number: 20130071501
    Abstract: The present invention relates to an extract of Stewartia koreana and use thereof More particularly, it relates to an extract of Stewartia koreana which is extracted with any one selected from the group consisting of water, a C1-4 low alcohol, a polar solvent, a non-polar solvent and a mixture thereof, and a pharmaceutical composition for promoting angiogenesis or tissue regeneration and a cosmetic for improving wrinkles comprising the same as an effective ingredient. The extract of Stewartia koreana promotes migration and multiplication of endothelial cell and shows excellent effect in angiogenesis and wound healing and is useful in treatment or prevention of diseases which requires angiogenesis for healing of wounded and frostbitten region, wound healing after surgical operation, and treatment and prevention of gastric ulcer, ischaemic heart diseases and hair loss.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 21, 2013
    Applicant: RNA, INC.
    Inventors: Ji Young KIM, Dae Kyun CHUNG, Tae Hoon LEE, Guy Wilhem LEE, Jung Min LEE
  • Publication number: 20120190634
    Abstract: A lipoteichoic acid (LTA)-derived glycolipid, and a pharmaceutical, food or cosmetic composition and a vaccine adjuvant including the same are provided. The LTA-derived glycolipid can inhibit the production of inflammatory cytokines and thus have anti-inflammatory effects. Therefore, the pharmaceutical, food or cosmetic compositions including the LTA-derived glycolipid can be used to prevent and treat inflammatory diseases, and the LTA-derived glycolipid can be also used as the vaccine adjuvant.
    Type: Application
    Filed: August 26, 2010
    Publication date: July 26, 2012
    Applicant: RNA INC.
    Inventors: Dae Kyun Chung, Kyoung Soon Jang, Byung Gee Kim, Han Geun Kim, Na Ra Kim, Hea Young Lee, Bong Jun Jung, Tae Rahk Kim, Ji Hye Jeong
  • Publication number: 20100028463
    Abstract: The present invention relates to an extract of Stewartia koreana and use thereof. More particularly, it relates to an extract of Stewartia koreana which is extracted with any one selected from the group consisting of water, a C1-4 low alcohol, a polar solvent, a non-polar solvent and a mixture thereof, and a pharmaceutical composition for promoting angiogenesis or tissue regeneration and a cosmetic for improving wrinkles comprising the same as an effective ingredient. The extract of Stewartia koreana according to the present invention promotes migration and multiplication of endothelial cell and shows excellent effect in angiogenesis and wound healing and thus, is useful in treatment or prevention of diseases which requires angiogenesis for healing of wounded and frostbitten region, wound healing after surgical operation, and treatment and prevention of gastric ulcer, ischaemic heart diseases and hair loss.
    Type: Application
    Filed: February 13, 2007
    Publication date: February 4, 2010
    Applicant: RNA, INC.
    Inventors: Ji Young Kim, Dae Kyun Chung, Tae Hoon Lee, Guy Wilhem Lee, Jung Min Lee