Patents by Inventor Hee-Hoon Yoon

Hee-Hoon Yoon 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: 9499787
    Abstract: The present invention relates to a method for differentiating stem cells into neurons, and is characterized in that stem cells are treated with a culture additive comprising lipoic acid, albumin, hydrocortisone, and insulin after culturing for differentiation into neurons. Since the neurons produced according to the method for producing neurons of the present invention express nestin, neuroD1, neuron-specific enolase (NSE), neurofilament (NF), tau, microtubule-associated protein 2 (MAP2), and doublecortin (DCX), just as normal mature neurons do, the neurons of the present invention can be effectively used in various therapeutic agents for neurons and as cell origins for an in vitro study system.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: November 22, 2016
    Assignee: Dongguk University Industry—Academic Cooperation Foundation
    Inventors: Jung Keug Park, Hee Hoon Yoon, Soo Yeon Kim, Young Kwon Seo
  • Publication number: 20160206778
    Abstract: Embodiments of the present invention relate to a biodegradable scaffold for replacing tissue or inducing tissue regeneration and a preparation method thereof, wherein the scaffold comprises at least one woven silk tube layer and a collagen layer inside the tube layer. The scaffold is excellent in terms of tissue regeneration and mechanical properties and causes little or no immune response after implantation. Thus, the scaffold can be effectively used as a matrix for the regeneration of ligaments and tendons and the repair of injured muscles.
    Type: Application
    Filed: November 9, 2015
    Publication date: July 21, 2016
    Inventors: Jung-Keug Park, Young Kwon Seo, Mi Jung Han, Hwa Sung Lee, Su Rak Eo, Hee Hoon Yoon, Soon Yong Kwon, Hee Jung Park
  • Publication number: 20150004701
    Abstract: The present invention relates to a method for differentiating stem cells into neurons, and is characterized in that stem cells are treated with a culture additive comprising lipoic acid, albumin, hydrocortisone, and insulin after culturing for differentiation into neurons. Since the neurons produced according to the method for producing neurons of the present invention express nestin, neuroD1, neuron-specific enolase (NSE), neurofilament (NF), tau, microtubule-associated protein 2 (MAP2), and doublecortin (DCX), just as normal mature neurons do, the neurons of the present invention can be effectively used in various therapeutic agents for neurons and as cell origins for an in vitro study system.
    Type: Application
    Filed: February 5, 2013
    Publication date: January 1, 2015
    Inventors: Jung Keug Park, Hee Hoon Yoon, Soo Yeon Kim, Young Kwon Seo
  • Patent number: 8753881
    Abstract: The present invention relates to a method for differentiation of mesenchymal stem cells. More specifically, the invention relates to a method for differentiating mesenchymal stem cells to neural cells by treating the mesenchymal stem cells with low-frequency sound waves. The differentiation method of the present invention can induce differentiation even with low-cost media rather than induced neural differentiation mediums which are expensive due to addition of growth factors, and the neural cells differentiated according to the present invention may be useful for treatment of neurological diseases.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: June 17, 2014
    Assignee: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Jung-Keug Park, Moon Young Yoon, Hyun Jin Cho, Young-Kwon Seo, Song Hee Jeon, Hee Hoon Yoon
  • Patent number: 8673605
    Abstract: The present invention relates to a method for differentiation of mesenchymal stem cells or dental pulp stem cells. More specifically, the invention relates to a method for differentiating stem cells to neural cells by applying mesenchymal stem cells or dental pulp stem cells with a low-frequency electromagnetic field. The differentiation method according to the present invention can induce differentiation even with low-cost mediums rather than induced neural differentiation mediums which are expensive due to addition of growth factors, and the neural cells differentiated according to the present invention may be useful for treatment of neurological brain diseases.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 18, 2014
    Assignee: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Jung-Keug Park, Sung Min Kim, Soo Chan Kim, Moon Young Yoon, Hyun Jin Cho, Young-Kwon Seo, Hee Hoon Yoon
  • Publication number: 20130202565
    Abstract: The present invention relates to a method for differentiation of mesenchymal stem cells or dental pulp stem cells. More specifically, the invention relates to a method for differentiating stem cells to neural cells by applying mesenchymal stem cells or dental pulp stem cells with a low-frequency electromagnetic field. The differentiation method according to the present invention can induce differentiation even with low-cost mediums rather than induced neural differentiation mediums which are expensive due to addition of growth factors, and the neural cells differentiated according to the present invention may be useful for treatment of neurological brain diseases.
    Type: Application
    Filed: June 8, 2011
    Publication date: August 8, 2013
    Applicant: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Jung-Keug Park, Sung Min Kim, Soo Chan Kim, Moon Young Yoon, Hyun Jin Cho, Young-Kwon Seo, Hee Hoon Yoon
  • Publication number: 20130202566
    Abstract: The present invention relates to a method for differentiation of mesenchymal stem cells. More specifically, the invention relates to a method for differentiating mesenchymal stem cells to neural cells by treating the mesenchymal stem cells with low-frequency sound waves. The differentiation method of the present invention can induce differentiation even with low-cost media rather than induced neural differentiation mediums which are expensive due to addition of growth factors, and the neural cells differentiated according to the present invention may be useful for treatment of neurological diseases.
    Type: Application
    Filed: June 8, 2011
    Publication date: August 8, 2013
    Applicant: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Jung-Keug Park, Moon Young Yoon, Hyun Jin Cho, Young-Kwon Seo, Song Hee Jeon, Hee Hoon Yoon
  • Publication number: 20130073055
    Abstract: Embodiments of the present invention relate to a biodegradable scaffold for replacing tissue or inducing tissue regeneration and a preparation method thereof, wherein the scaffold comprises at least one woven silk tube layer and a collagen layer inside the tube layer. The scaffold is excellent in terms of tissue regeneration and mechanical properties and causes little or no immune response after implantation. Thus, the scaffold can be effectively used as a matrix for the regeneration of ligaments and tendons and the repair of injured muscles.
    Type: Application
    Filed: March 16, 2011
    Publication date: March 21, 2013
    Applicant: DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jung-Keug Park, Young Kwon Seo, Mi Jung Han, Hwa Sung Lee, Su Rak Eo, Hee Hoon Yoon, Soon Yong Kwon, Hee Jung Park
  • Patent number: 8329457
    Abstract: The present invention discloses a bioartificial liver system comprising a fixed-bed bioreactor packed with gel beads containing hepatocytes of an animal, a plasma reservoir, a plasma separator, and an efflux chamber, wherein the plasma reservoir is located at a position higher than the bioreactor, a ventilation filter in contact with atmosphere is provided at the top of the plasma reservoir, and the top of the plasma reservoir is directly connected to the efflux chamber via a connecting line. The inventive system satisfactorily performs the essential liver functions without the problems of gel bead damage or channeling.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 11, 2012
    Assignees: Lifecord Inc.
    Inventors: Jung Keug Park, Sung Koo Kim, Suk Koo Lee, Young-Jin Kim, Doo-Hoon Lee, Ji-Hyun Lee, Hee-Hoon Yoon, Jae-Nam Ryu, Choon-Hyuck Kwon, Jeong-Kwon Noh, Hey-Jung Park
  • Patent number: 8017390
    Abstract: A method for the preparation of dermal papilla tissue comprising the step of culturing mesenchymal stem cells in a medium having a specific composition is provided. The method makes it possible to form in vitro a quantity of dermal papilla tissues having hair follicle inducting ability and, accordingly, it can be effectively used for the treatment of alopecia through cell transplantation.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: September 13, 2011
    Assignee: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Jung-Keug Park, Hee-Hoon Yoon, Bo-Young Yoo, Young-Jin Kim, Youn-Ho Shin
  • Publication number: 20100261276
    Abstract: A method for the preparation of dermal papilla tissue comprising the step of culturing mesenchymal stem cells in a medium having a specific composition is provided. The method makes it possible to form in vitro a quantity of dermal papilla tissues having hair follicle inducting ability and, accordingly, it can be effectively used for the treatment of alopecia through cell transplantation.
    Type: Application
    Filed: July 20, 2007
    Publication date: October 14, 2010
    Applicant: DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jung-Keug Park, Hee-Hoon Yoon, Bo-Young Yoo, Young-Jin Kim, Youn-Ho Shin
  • Publication number: 20100126923
    Abstract: The present invention discloses a bioartificial liver system comprising a fixed-bed bioreactor packed with gel beads containing hepatocytes of an animal, a plasma reservoir, a plasma separator, and an efflux chamber, wherein the plasma reservoir is located at a position higher than the bioreactor, a ventilation filter in contact with atmosphere is provided at the top of the plasma reservoir, and the top of the plasma reservoir is directly connected to the efflux chamber via a connecting line. The inventive system satisfactorily performs the essential liver functions without the problems of gel bead damage or channeling.
    Type: Application
    Filed: March 28, 2008
    Publication date: May 27, 2010
    Inventors: Jung Keug Park, Sung Koo Kim, Suk Koo Lee, Young-Jin Kim, Doo-Hoon Lee, Ji-Hyun Lee, Hee-Hoon Yoon, Jae-Nam Ryu, Choon-Hyuck Kwon, Jeong-Kwon Noh, Hey-Jung Park
  • Patent number: 7635589
    Abstract: The inventive method for the preparation of a dermal papilla tissue in accordance with the present invention makes it possible to form a quantity of the dermal papilla tissues having hair follicle inductive ability, and accordingly, it can be effectively used for the treatment of alopecia through cell transplantation.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: December 22, 2009
    Assignees: Lifecord Inc., Corp.
    Inventors: Jung-Keug Park, Doo-Hoon Lee, Hee-Hoon Yoon, Youn-Ho Shin, Young Jin Kim
  • Publication number: 20080145929
    Abstract: The inventive method for the preparation of a dermal papilla tissue in accordance with the present invention makes it possible to form a quantity of the dermal papilla tissues having hair follicle inductive ability, and accordingly, it can be effectively used for the treatment of alopecia through cell transplantation.
    Type: Application
    Filed: November 29, 2005
    Publication date: June 19, 2008
    Inventors: Jung-Keug Park, Doo-Hoon Lee, Hee-Hoon Yoon, Youn-Ho Shin, Young Jin Kim
  • Patent number: 7229827
    Abstract: A method for differentiating mesenchymal stem cells of bone marrow into neural cells comprises culturing the mesenchymal stem cells in a medium containing epidermal growth factor(EGF), basic fibroblast growth factor(bFGF) and hepatocyte growth factor(HGF), and the neural cells produced thereby can be employed for the treatment of a neural disease.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: June 12, 2007
    Assignees: FCB-Pharmicell Co., Ltd., LifeCord International Co., Ltd.
    Inventors: Hyun-Soo Kim, Hee-Hoon Yoon