Patents by Inventor Woo Young Jeon

Woo Young Jeon 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: 20240098382
    Abstract: An image processing device including: a decision pixel manager for setting a decision area for a defect candidate pixel, and determining a first decision pixel and a second decision pixel, based on first phase information of pixels included in the decision area with respect to a first modulation frequency of a sensing light source among the pixels; a target pixel determiner for calculating a phase difference between the first decision pixel and the second decision pixel, based on second phase information of the pixels with respect to a second modulation frequency of the sensing light source, and determining the defect candidate pixel as a target pixel, corresponding to that the phase difference exceeds a predetermined reference value; and a phase corrector for changing a phase of the target pixel, based on the phase difference.
    Type: Application
    Filed: February 28, 2023
    Publication date: March 21, 2024
    Applicant: SK hynix Inc.
    Inventors: Woo Young JEONG, Ja Min KOO, Tae Hyun KIM, Jae Hwan JEON, Chang Hun CHO
  • Publication number: 20230080381
    Abstract: An object of the present invention is to provide an emergency braking device for an automobile that is capable of preventing a safety-related accident by applying a braking force even when a brake pipe or the like is ruptured. To this end, the emergency braking device for an automobile of the present invention is an emergency braking device for an automobile that is added to an automobile that is braked by a pressure of main brake fluid transferred through a brake pipe when a brake pedal is stepped on and that is instantaneously and automatically switched to an emergency braking device when braking is not performed due to the rupture of the existing (main) brake pipe, or the like. The emergency braking device for an automobile includes a valve unit, an emergency pipe; a pressing part; and a pressure source.
    Type: Application
    Filed: April 6, 2021
    Publication date: March 16, 2023
    Inventors: Gwang Seok JEON, Woo Young JEON
  • 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: 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: 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
  • Patent number: 8343736
    Abstract: The present invention relates to an efficient production method of xylitol by using the xylitol producing microorganism introduced with arabinose metabolic pathway to inhibit the production of arabitol, the byproduct, and instead to use arabinose only for cell metabolism in xylose/arabinose mixed medium. More precisely, to express efficiently L-arabinose isomerase (araA), L-ribulokinase (araB) and L-ribulose-5-phosphate 4-epimerase (araD) in Candida tropicalis, codon optimization was performed. Then, each gene was inserted in the gene expression cassette containing the glyceraldehyde-3-phosphate dehydrogenase promoter and the selection marker URA3, which was introduced into Candida sp. microorganism. As a result, arabitol, the byproduct interrupting the purification and crystallization of xylitol could be inhibited, making the production method of xylitol of the present invention more efficient.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: January 1, 2013
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jung Hoe Kim, Byoung Hoon Yoon, Woo Young Jeon, Woo Yong Shim
  • Publication number: 20120171739
    Abstract: The present invention relates to an efficient production method of xylitol by using the xylitol producing microorganism introduced with arabinose metabolic pathway to inhibit the production of arabitol, the byproduct, and instead to use arabinose only for cell metabolism in xylose/arabinose mixed medium. More precisely, to express efficiently L-arabinose isomerase (araA), L-ribulokinase (araB) and L-ribulose-5-phosphate 4-epimerase (araD) in Candida tropicalis, codon optimization was performed. Then, each gene was inserted in the gene expression cassette containing the glyceraldehyde-3-phosphate dehydrogenase promoter and the selection marker URA3, which was introduced into Candida sp. microorganism. As a result, arabitol, the byproduct interrupting the purification and crystallization of xylitol could be inhibited, making the production method of xylitol of the present invention more efficient.
    Type: Application
    Filed: January 18, 2011
    Publication date: July 5, 2012
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jung Hoe Kim, Byoung Hoon Yoon, Woo Young Jeon, Woo Yong Shim