Patents by Inventor Jong Chan Ahn

Jong Chan Ahn 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: 20260209709
    Abstract: The present invention pertains to a method for selecting stem cells with enhanced cartilage differentiation capability, a cell therapy product comprising the stem cells selected by the selection method, and a production method therefor.
    Type: Application
    Filed: December 23, 2022
    Publication date: July 23, 2026
    Inventors: Mi Jin Kim, Jong Chan Ahn, Seong Soo Song, Seung Hee Lee, Kyung Sun Kang
  • Patent number: 12589116
    Abstract: Disclosed is a method for producing a stem cell with enhanced efficacy, a stem cell produced thereby, and a method for treating a disease using the same. According to the present invention, sizes of stem cells may be reduced and proliferation ability, differentiation potency, migration ability, and angiogenic potential of stem cells may be significantly enhanced by applying a culturing method provided herein. Thus the present invention may be usefully applied to development of therapeutic agents using stem cells.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 31, 2026
    Assignee: KANGSTEM BIOTECH CO., LTD.
    Inventors: Mijin Kim, Jong Chan Ahn, Seunghee Lee, Kwang-Won Seo, Kyung-Sun Kang
  • Publication number: 20260083780
    Abstract: The present invention relates to a complex for promoting cartilage differentiation comprising stem cells or a culture thereof and a cartilage cell-free crush, a method for fabricating cartilage by using the complex, cartilage fabricated via the method, a pharmaceutical composition comprising the complex for preventing or treating arthropathy, a method for preventing or treating arthropathy using the composition, a composition for inducing cartilage cell differentiation comprising the prepared cartilage cells, and a method for fabricating cartilage using the prepared cartilage cells.
    Type: Application
    Filed: June 2, 2025
    Publication date: March 26, 2026
    Inventors: Kyung Sun Kang, Seung Hee Lee, Jong Chan Ahn, Mi Jin Kim
  • Publication number: 20260070401
    Abstract: A driving apparatus for an electric vehicle operates by combining two motors, three reduction mechanisms, and a power disconnector so that each driving region of the electric vehicle can appropriately perform its role, thereby maintaining efficiency gain and effectiveness in relation to cost, even if required performance specifications increase, or maintaining its driving efficiency at a high level.
    Type: Application
    Filed: September 10, 2025
    Publication date: March 12, 2026
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Seong Yeop Lim, Seong Wook Hwang, Kijong Park, Yeohyeon Gwon, Jongsung Kim, Yong Jae Lee, Dongwoo Kim, Byungkwan Son, Sihun Noh, Jong Chan Ahn, Hotae Chun
  • Patent number: 12359172
    Abstract: The present invention is to provide a 3D cartilage organoid block prepared by differentiating mesenchymal stem cells into 3D spheroid cartilage tissues, a basic unit for the 3D cartilage spheroid block. The inventors found that both the amount of GAG matrix and the expression of the collagen type2 increased. Therefore, the method of this invention provides clinically applicable cartilage tissues by effectively enhancing the function of the cartilage differentiation constructs according to 2D culture. The 3D cartilage organoid block can be usefully applied to the area, such as, articular cartilage regeneration and plastic surgery, where cartilage tissues restoration is required.
    Type: Grant
    Filed: October 1, 2016
    Date of Patent: July 15, 2025
    Assignee: XCELL THERAPEUTICS INC.
    Inventors: Young Key Shin, Sang Gyu Park, Young Deug Kim, Jong Chan Ahn, Byoung Jun Park, Ui II Lee
  • Patent number: 12350295
    Abstract: The present invention relates to a complex for promoting cartilage differentiation comprising stem cells or a culture thereof and a cartilage cell-free crush, a method for fabricating cartilage by using the complex, cartilage fabricated via the method, a pharmaceutical composition comprising the complex for preventing or treating arthropathy, a method for preventing or treating arthropathy using the composition, a composition for inducing cartilage cell differentiation comprising the prepared cartilage cells, and a method for fabricating cartilage using the prepared cartilage cells.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: July 8, 2025
    Assignee: KANGSTEM BIOTECH CO., LTD.
    Inventors: Kyung Sun Kang, Seung Hee Lee, Jong Chan Ahn, Mi Jin Kim
  • Publication number: 20240299460
    Abstract: The present invention relates to a method of manufacturing an animal cartilage-derived injectable composition, an injectable composition manufactured by the method, and a use thereof. The injectable composition of the present invention includes a collagen-containing biomaterial in a formulation injectable into joint cavity and may induce cartilage tissue regeneration by repairing tissue via direct injection to a target region without surgical incision. In addition, the injectable composition may be used as a therapeutic agent for arthritis by alleviating osteoarthritis not only because the animal cartilage-derived extracellular matrix contained in the injectable composition protects articular cartilage tissue but also because an environment capable of regenerating damaged articular tissue is created by inducing differentiation of intra-articular stem cells into chondrocytes.
    Type: Application
    Filed: November 26, 2021
    Publication date: September 12, 2024
    Inventors: Kyung Sun Kang, Seunghee Lee, Jong Chan Ahn, Mijin Kim
  • Publication number: 20230321153
    Abstract: The present invention relates to a method of manufacturing an animal cartilage-derived injectable composition, an injectable composition manufactured by the method, and a use thereof. The injectable composition of the present invention includes a collagen-containing biomaterial in a formulation injectable into joint cavity and may induce cartilage tissue regeneration by repairing tissue via direct injection to a target region without surgical incision. In addition, the injectable composition may be used as a therapeutic agent for arthritis by alleviating osteoarthritis not only because the animal cartilage-derived extracellular matrix contained in the injectable composition protects articular cartilage tissue but also because an environment capable of regenerating damaged articular tissue is created by inducing differentiation of intra-articular stem cells into chondrocytes.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Inventors: Kyung Sun Kang, Seunghee Lee, Jong Chan Ahn, Mijin Kim
  • Publication number: 20230051601
    Abstract: Disclosed is a method for producing a stem cell with enhanced efficacy, a stem cell produced thereby, and a method for treating a disease using the same. According to the present invention, sizes of stem cells may be reduced and proliferation ability, differentiation potency, migration ability, and angiogenic potential of stem cells may be significantly enhanced by applying a culturing method provided herein. Thus the present invention may be usefully applied to development of therapeutic agents using stem cells.
    Type: Application
    Filed: December 16, 2020
    Publication date: February 16, 2023
    Inventors: Mijin Kim, Jong Chan Ahn, Seunghee Lee, Kwang-won Seo, Kyung-sun Kang
  • Publication number: 20190010459
    Abstract: The present invention is to provide a 3D cartilage organoid block prepared by differentiating mesenchymal stem cells into 3D spheroid cartilage tissues, a basic unit for the 3D cartilage spheroid block. The inventors found that both the amount of GAG matrix and the expression of the collagen type2 increased. Therefore, the method of this invention provides clinically applicable cartilage tissues by effectively enhancing the function of the cartilage differentiation constructs according to 2D culture. The 3D cartilage organoid block can be usefully applied to the area, such as, articular cartilage regeneration and plastic surgery, where cartilage tissues restoration is required.
    Type: Application
    Filed: October 1, 2016
    Publication date: January 10, 2019
    Inventors: Young Key Shin, Sang Gyu Park, Young Deug Kim, Jong Chan Ahn, Byoung Jun Park, Ui II Lee