Patents by Inventor Gyung-Ja Choi

Gyung-Ja 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).

  • Publication number: 20220119761
    Abstract: The present invention relates to an Aspergillus niger F22 strain having a nematicidal activity against plant-parasitic nematodes; a nematicidal microorganism agent against plant-parasitic nematodes, containing, as an active ingredient, the strain, a spore, a fungal hyphal mass, or a culture liquid thereof; a method for controlling plant-parasitic nematodes, having a step of administering the microorganism agent to a crop, a crop seed, or a field; and a method for preparation of a nematicidal microorganism agent against plant-parasitic nematodes, having a step of culturing the strain.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 21, 2022
    Applicants: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Jin Cheol KIM, Hun KIM, Kee-Sun SHIN, Ja Yeong JANG, Gyung Ja CHOI, Yong Ho CHOI, Kyoung Soo JANG, Mi Bang KIM
  • Publication number: 20180127707
    Abstract: The present invention relates to an Aspergillus niger F22 strain having a nematicidal activity against plant-parasitic nematodes; a nematicidal microorganism agent against plant-parasitic nematodes, containing, as an active ingredient, the strain, a spore, a fungal hyphal mass, or a culture liquid thereof; a method for controlling plant-parasitic nematodes, having a step of administering the microorganism agent to a crop, a crop seed, or a field; and a method for preparation of a nematicidal microorganism agent against plant-parasitic nematodes, having a step of culturing the strain.
    Type: Application
    Filed: April 6, 2016
    Publication date: May 10, 2018
    Applicants: Industry Foundation of Chonnam National University, Korea Research Institute of Chemical Technology, Korea Research Institute of Bioscience and Biotechnology
    Inventors: Jin Cheol KIM, Hun KIM, Kee-Sun SHIN, Ja Yeong JANG, Gyung Ja CHOI, Yong Ho CHOI, Kyoung Soo JANG, Mi Bang KIM
  • Patent number: 8202514
    Abstract: A novel strain of Bacillus subtilis EB120 shows high antagonistic activity for controlling various plant diseases including barley powdery mildew, cucumber powdery mildew, red pepper anthracnose, rice blast, tomato gray mold, tomato late blight and wheat leaf rust, it can be effectively used as a microbioside for biologically controlling the plant diseases.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: June 19, 2012
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kwang Yun Cho, Jin-Cheol Kim, Gyung Ja Choi, Seon-Woo Lee, Yong Ho Choi, Kyoung Soo Jang, He Kyoung Lim
  • Publication number: 20110262416
    Abstract: A novel strain of Bacillus subtilis EB120 shows high antagonistic activity for controlling various plant diseases including barley powdery mildew, cucumber powdery mildew, red pepper anthracnose, rice blast, tomato gray mold, tomato late blight and wheat leaf rust, it can be effectively used as a microbioside for biologically controlling the plant diseases.
    Type: Application
    Filed: March 23, 2005
    Publication date: October 27, 2011
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kwang-Yun Cho, Jin-Cheol Kim, Gyung Ja Choi, Seon-Woo Lee, Yong Ho Choi, Kyoung Soo Jang, He Kyoung Lim
  • Publication number: 20070112069
    Abstract: Disclosed in this invention is an adjuvant formulation for enhancing the fungicidal efficacy of KNF-1001 or KNF-1002 against plant diseases comprising an adjuvant selected from the group consisting of a polyoxyethylene-based nonionic surfactants which has an aliphatic alcohol, a fatty acid or triacyl glyceride as a lipophilic moiety containing at least 8 carbon atoms and a polyoxyethylene as a hydrophilic moiety having 3 to 25 oxyethylene repeating units, a polyoxyethylene and 25 to 45 oxypropylene repeating units and a mixture thereof, an anionic surfactant selected from the group consisting of sodium dioctyl sulfosuccinate, sodium dodecylbenzenesulfonate and a mixture thereof, and fatty acid alkyl esters having at least 14 carbon atoms. Also disclosed in this invention is a fungicidal composition for enhancing the fungicidal efficacy of KNF-1001 or KNF-1002 against plant diseases, which comprises a selected active compound together with said adjuvant.
    Type: Application
    Filed: July 2, 2004
    Publication date: May 17, 2007
    Inventors: Kwang-Yun Cho, Ju-Hyun Yu, Gyung-Ja Choi, He-Kyoung Lim, Kyoung-Soo Jang, Bum-Tae Kim, Yong YU
  • Patent number: 6552080
    Abstract: A fungicidal compound of formula (I) having a fluorovinye- or fluoropropenyl-oxyphenyloxime moiety and stereoisomers thereof are useful for protecting crops from fungal diseases: wherein, X is CH or N; Y is O or NH; R1 is hydrogen, C1-4 alkyl, or halogen-substituted C1-4 alkyl, R2 is a phenyl group optionally carrying one or more substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, methylenedioxy and halogen; or a naphthyl group; and R3 is hydrogen or CF3.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: April 22, 2003
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Bum Tae Kim, No Kyun Park, Gyung Ja Choi, Jin Cheol Kim, Chwang Siek Pak
  • Patent number: 6506601
    Abstract: A composition for measuring the foliar uptake of a pesticide comprising the pesticide and Congo Red as a tracer is disclosed together with a method for measuring the foliar uptake of a pesticide comprising the steps of (a) applying a composition containing the pesticide and Congo Red as a tracer to a plant and a control plate, (b) washing the plant and the control plate with a solvent to extract the pesticide and Congo Red, (c) measuring the concentrations of the pesticide and Congo Red in the wash extracts, and (d) calculating the foliar uptake of the pesticide.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: January 14, 2003
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kwang-Yun Cho, Ju-Hyun Yu, He-Kyoung Lim, Gyung-Ja Choi, Jeong-Han Kim
  • Patent number: 6444850
    Abstract: A fungicidal compound of formula (I) having a fluorovinyloxyphenyl moiety and stereoisomers thereof are useful for protecting crops from fungal diseases: wherein: X is CH or N; Y is O or S; Z is O or NH; R1 is hydrogen or CF3; and R2 is hydrogen, a C1-10 alkyl, naphthyl, thiophenyl or a phenyl group optionally carrying one or more substituents selected from the group consisting of C1-6 alkyl, halogen-substituted C1-6 alkyl, C1-6 alkoxy, phenoxy, halogen, and methylenedioxy radicals.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Chwang-Siek Pak, Bum-Tae Kim, No-Kyun Park, Gyung-Ja Choi, Heung-Tae Kim
  • Publication number: 20010001713
    Abstract: A composition for measuring the foliar uptake of an agrochemical comprising the agrochemical and Congo Red as a tracer; and a method for measuring the foliar uptake of an agrochemical comprising the steps of (a) applying a composition containing the agrochemical and Congo Red to a plant and a control plate, (b) washing the plant and the control plate with a solvent to extract the agrochemical and Congo Red, (c) measuring the concentrations of the agrochemical and Congo Red in the wash extracts, and (d) calculating the foliar uptake of the agrochemical.
    Type: Application
    Filed: January 3, 2001
    Publication date: May 24, 2001
    Inventors: Kwang-Yun Cho, Ju-Hyun Yu, He-Kyoung Lim, Gyung-Ja Choi, Jeong-Han Kim
  • Patent number: 5889027
    Abstract: The present invention relates to 3(2H)-furanone compounds possessing fungicidal activity to plant fungi and a process for preparing them.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: March 30, 1999
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jae-Hyun Lee, Ihl-Young Choi, Hyun-Jin Kim, Gyung-Ja Choi
  • Patent number: 5707931
    Abstract: The present invention relates to novel 4-amino-2-quinolinone derivatives of the formula (I) useful in agriculture, especially as fungicides, insecticides and herbicides ##STR1## wherein, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, halogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.1 -C.sub.3 haloalkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.1 -C.sub.3 haloalkyithio, NO.sub.2, CN, C.sub.1 -C.sub.4 alkoxy carbonyl, phenyl, phenoxy, benzoyl, benzenesulfonyl, benzyl or morpholine; R.sub.5 is hydrogen, C.sub.1 -C.sub.6 alkyl, cyclopropyl, phenyl, halophenyl, benzyl or phenylthiomethyl; R.sub.6 is hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.3 -C.sub.6 alkenyl or C.sub.3 -C.sub.6 alkynyl; and R.sub.7 is ##STR2## wherein, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15, R.sub.16, R.sub.17, R.sub.18, R.sub.19, R.sub.20, X, Y, m, n, p and q are defined within the description.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: January 13, 1998
    Assignee: Korea Research Intsituted of Chemical Technology
    Inventors: Chwang Siek Pak, Eun Bok Choi, Gyu Hwan Yon, Heui Cheol Yang, Hyeon Kyu Lee, Ge Hyeong Lee, Jin Pyo Lee, Gyung Ja Choi