Patents by Inventor Jeong Jin Choi

Jeong Jin Choi 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: 11717826
    Abstract: The present disclosure relates to a nucleic acid analysis apparatus using a cartridge which can simplify the nucleic acid extraction and applicable to a molecular diagnostic POCT equipment. The nucleic acid analysis device includes a stage on which a cartridge is mountable, a nucleic acid extraction unit, and a control unit. The nucleic acid extraction unit performs a nucleic acid extraction through crushing of the sample, the cell disruption, and the nucleic acid purification as well as a nucleic acid amplification. The control unit controls the stage and the nucleic acid extraction unit so that the nucleic acid extraction through the crushing of the sample, the cell disruption, and the nucleic acid purification as well as the nucleic acid amplification are collectively performed.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: August 8, 2023
    Assignee: SK Telecom Co., Ltd.
    Inventors: Chin Sung Park, Jin Seok Kang, Jong Sun Kim, Jun Hong Min, Jeong Jin Choi
  • Patent number: 11679387
    Abstract: The present disclosure provides a cartridge for use in nucleic acid extraction and a nucleic acid extraction method which can simplify a nucleic acid extraction process and can be applicable to a point-of-care testing (POCT). The cartridge includes a chamber module, an air valve module, and a liquid valve module. The chamber module includes a plurality of chambers for extracting nucleic acids from a sample including a pretreatment chamber in which the sample is crushed and homogenization, cell disruption, and purification are performed. The air valve module is installed on the chamber module to control a pressure required to move a fluid between the plurality of chambers. The liquid valve module is installed below the chamber module to move the fluid between the plurality of chambers.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: June 20, 2023
    Assignee: SK Telecom Co., Ltd.
    Inventors: Chin Sung Park, Jong Sun Kim, Jin Seok Kang, Jeong Jin Choi, Jun Hong Min
  • Publication number: 20200078787
    Abstract: The present disclosure relates to a nucleic acid analysis apparatus using a cartridge which can simplify the nucleic acid extraction and applicable to a molecular diagnostic POCT equipment. The nucleic acid analysis device includes a stage on which a cartridge is mountable, a nucleic acid extraction unit, and a control unit. The nucleic acid extraction unit performs a nucleic acid extraction through crushing of the sample, the cell disruption, and the nucleic acid purification as well as a nucleic acid amplification. The control unit controls the stage and the nucleic acid extraction unit so that the nucleic acid extraction through the crushing of the sample, the cell disruption, and the nucleic acid purification as well as the nucleic acid amplification are collectively performed.
    Type: Application
    Filed: November 14, 2019
    Publication date: March 12, 2020
    Inventors: Chin Sung PARK, Jin Seok KANG, Jong Sun KIM, Jun Hong MIN, Jeong Jin CHOI
  • Publication number: 20200078786
    Abstract: The present disclosure provides a cartridge for use in nucleic acid extraction and a nucleic acid extraction method which can simplify a nucleic acid extraction process and can be applicable to a point-of-care testing (POCT). The cartridge includes a chamber module, an air valve module, and a liquid valve module. The chamber module includes a plurality of chambers for extracting nucleic acids from a sample including a pretreatment chamber in which the sample is crushed and homogenization, cell disruption, and purification are performed. The air valve module is installed on the chamber module to control a pressure required to move a fluid between the plurality of chambers. The liquid valve module is installed below the chamber module to move the fluid between the plurality of chambers.
    Type: Application
    Filed: November 14, 2019
    Publication date: March 12, 2020
    Inventors: Chin Sung PARK, Jong Sun KIM, Jin Seok KANG, Jeong Jin CHOI, Jun Hong MIN
  • Patent number: 8691195
    Abstract: The present invention relates to a transforming growth factor-beta (TGF-?)-mimicking peptide containing a particular amino acid sequence and a composition for preventing or treating TGF-?-effective disorders or conditions using the same. The peptide of the present invention may be much higher stability than natural-occurring TGF-? and improve drawbacks caused by high molecular weight of natural-occurring TGF-?. The peptide of this invention can be advantageously applied to treatment or improvement of TGF-?-effective disorders or conditions and have excellent efficacies on skin whitening and wrinkle improvement.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: April 8, 2014
    Assignee: Caregen Co., Ltd.
    Inventors: Young Ji Chung, Young Deug Kim, Eun Mi Kim, Jeong Jin Choi, Jun Young Choi
  • Publication number: 20120114577
    Abstract: The present invention relates to a transforming growth factor-beta (TGF-?)-mimicking peptide containing a particular amino acid sequence and a composition for preventing or treating TGF-?-effective disorders or conditions using the same. The peptide of the present invention may be much higher stability than natural-occurring TGF-? and improve drawbacks caused by high molecular weight of natural-occurring TGF-?. The peptide of this invention can be advantageously applied to treatment or improvement of TGF-?-effective disorders or conditions and have excellent efficacies on skin whitening and wrinkle improvement.
    Type: Application
    Filed: April 14, 2009
    Publication date: May 10, 2012
    Applicant: CAREGEN CO., LTD.
    Inventors: Young Ji Chung, Young Deug Kim, Eun Mi Kim, Jeong Jin Choi, Jun Young Choi
  • Patent number: 7749732
    Abstract: Disclosed are a method of preparing an active Nanoarchaeum equitans B-type DNA polymerase (Neq DNA polymerase), an active Neq DNA polymerase prepared according to the method, and a polymerase chain reaction (PCR) using the active Neq DNA polymerase. The active Neq DNA polymerase may be used in various nucleic acid polymerization reactions, such as PCR.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: July 6, 2010
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Suk-Tae Kwon, Jeong Jin Choi, Ki Hoon Nam