Patents by Inventor Gyu Yeon PARK

Gyu Yeon PARK 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: 11162121
    Abstract: The present invention relates to a method for producing a medium chain diamine and, more specifically, to a method for producing a medium chain diamine from an alcohol or alkane derived from a fatty acid, by culturing a recombinant microorganism from which a fatty aldehyde dehydrogenase gene in a ?-oxidative metabolic pathway and a ?-oxidative metabolic pathway related gene have been deleted, and also into which a ?-transaminase gene has been introduced. The recombinant microorganism disclosed in the present invention can prevent the additional oxidation and ?-oxidation metabolism of fatty aldehyde and can produce a medium chain diamine with a high yield by introducing an amine group to the terminus thereof.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: November 2, 2021
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jung Oh Ahn, Hong Weon Lee, Gyu Yeon Park, Hee Suk Lee, Min Jeong Jang, Woo Young Jeon
  • Patent number: 11091741
    Abstract: The present invention relates to a method for producing medium chain diol and, more particularly to recombinant microorganisms in which fatty alcohol dehydrogenase and/or fatty alcohol oxidase genes on a ?-oxidative metabolism pathway are deleted, the fatty aldehyde dehydrogenase genes are optionally deleted, and ?-oxidative metabolism pathway-related genes are deleted, and to a method for producing medium chain diol from fatty acid-derived alcohol or alkane by culturing the recombinant microorganisms. The recombinant microorganisms of the present invention can produce a high yield of medium chain diol by preventing further oxidation and ?-oxidative metabolism of fatty alcohols.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: August 17, 2021
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jung Oh Ahn, Hong Weon Lee, Min Jeong Jang, Chun Sug Kim, Gyu Yeon Park
  • Patent number: 10837032
    Abstract: The present invention relates to a method for producing dioic acids from a substrate containing hydrocarbons or fatty acids using a Candida infanticola strain, and to a Candida infanticola microorganism used therefor. The present invention reduces the cost increase resulting from the fluctuation in the international oil price and the burden of environmental pollution, which are caused by the use of fossil fuels, and thus can be utilized in various industrial fields using DDDA as a raw material.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 17, 2020
    Assignee: Lotte Chemical Corporation
    Inventors: Dong Myung Shin, Jong Pill Kim, Heejoon Park, Seung Hoon Lee, Hye Ran Jang, Hongweon Lee, Jung Oh Ahn, Woo Young Jeon, Gyu Yeon Park, Hee Suk Lee
  • Publication number: 20200172940
    Abstract: The present invention relates to a method for producing dioic acids from a substrate containing hydrocarbons or fatty acids using a Candida infanticola strain, and to a Candida infanticola microorganism used therefor. The present invention reduces the cost increase resulting from the fluctuation in the international oil price and the burden of environmental pollution, which are caused by the use of fossil fuels, and thus can be utilized in various industrial fields using DDDA as a raw material.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 4, 2020
    Inventors: Dong Myung SHIN, Jong Pill KIM, Heejoon PARK, Seung Hoon LEE, Hye Ran JANG, Hongweon LEE, Jung Oh AHN, Woo Young JEON, Gyu Yeon PARK, Hee Suk LEE
  • Patent number: 10604775
    Abstract: The present invention relates to a method for producing dioic acids from a substrate containing hydrocarbons or fatty acids using a Candida infanticola strain, and to a Candida infanticola microorganism used therefor. The present invention reduces the cost increase resulting from the fluctuation in the international oil price and the burden of environmental pollution, which are caused by the use of fossil fuels, and thus can be utilized in various industrial fields using DDDA as a raw material.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: March 31, 2020
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Dong Myung Shin, Jong Pill Kim, Heejoon Park, Seung Hoon Lee, Hye Ran Jang, Hongweon Lee, Jung Oh Ahn, Woo Young Jeon, Gyu Yeon Park, Hee Suk Lee
  • Publication number: 20190040422
    Abstract: The present invention relates to a method for producing dioic acids from a substrate containing hydrocarbons or fatty acids using a Candida infanticola strain, and to a Candida infanticola microorganism used therefor. The present invention reduces the cost increase resulting from the fluctuation in the international oil price and the burden of environmental pollution, which are caused by the use of fossil fuels, and thus can be utilized in various industrial fields using DDDA as a raw material.
    Type: Application
    Filed: September 23, 2016
    Publication date: February 7, 2019
    Inventors: Dong Myung SHIN, Jong Pill KIM, Heejoon PARK, Seung Hoon LEE, Hye Ran JANG, Hongweon LEE, Jung Oh AHN, Woo Young JEON, Gyu Yeon PARK, Hee Suk LEE
  • Publication number: 20180340195
    Abstract: The present invention relates to a method for producing medium chain diol and, more particularly to recombinant microorganisms in which fatty alcohol dehydrogenase and/or fatty alcohol oxidase genes on a ?-oxidative metabolism pathway are deleted, the fatty aldehyde dehydrogenase genes are optionally deleted, and ?-oxidative metabolism pathway-related genes are deleted, and to a method for producing medium chain diol from fatty acid-derived alcohol or alkane by culturing the recombinant microorganisms. The recombinant microorganisms of the present invention can produce a high yield of medium chain diol by preventing further oxidation and ?-oxidative metabolism of fatty alcohols.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 29, 2018
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jung Oh AHN, Hong Weon LEE, Min Jeong JANG, Chun Sug KIM, Gyu Yeon PARK
  • Publication number: 20180327724
    Abstract: The present invention relates to a method for producing a medium chain aminocarboxylic acid and, more particularly, to a recombinant microorganism in which a fatty aldehyde dehydrogenase gene in ?-oxidative metabolic pathway and a ?-oxidative metabolic pathway-related gene are deleted and a ?-transaminase gene is introduced, and a method for producing a medium chain aminocarboxylic acid by culturing the recombinant microorganism. The recombinant microorganism of the present invention can prevent additional oxidation of fatty aldehyde and ?-oxidative metabolism and also produce a medium chain aminocarboxylic acid, such as 12-aminodecane, as a raw material of nylon 12 from a substrate such as fatty acid with a high yield by introducing an amine group into a terminal thereof.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 15, 2018
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jung Oh AHN, Hong Weon LEE, Gyu Yeon PARK, Min Jeong JANG, Woo Young JEON
  • Publication number: 20180312889
    Abstract: The present invention relates to a method for producing a medium chain diamine and, more specifically, to a method for producing a medium chain diamine from an alcohol or alkane derived from a fatty acid, by culturing a recombinant microorganism from which a fatty aldehyde dehydrogenase gene in a ?-oxidative metabolic pathway and a ?-oxidative metabolic pathway related gene have been deleted, and also into which a ?-transaminase gene has been introduced. The recombinant microorganism disclosed in the present invention can prevent the additional oxidation and ?-oxidation metabolism of fatty aldehyde and can produce a medium chain diamine with a high yield by introducing an amine group to the terminus thereof.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 1, 2018
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jung Oh AHN, Hong Weon LEE, Gyu Yeon PARK, Hee Suk LEE, Min Jeong JANG, Woo Young JEON