Patents by Inventor Kyoung Yoo

Kyoung Yoo 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: 12123872
    Abstract: Embodiments of the present invention provide a lateral flow assay method and strip wherein a sample is injected into a sample pad, a preconcentration kit is coupled to the sample pad to preconcentrate analytes, and a conjugate pad or a test pad is connected to the sample pad to transfer the analytes to the conjugate pad or the test pad, whereby a biomarker present at a low concentration can be detected.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 22, 2024
    Assignee: Calth, Inc.
    Inventors: Jeong Hoon Lee, Yong Kyoung Yoo, Sung Il Han, Cheon Jung Kim
  • Publication number: 20240203543
    Abstract: According to a preferred embodiment of the present invention, a deep learning-based method and device for predicting analysis results predict analysis results of immune response assay-based kits, such as that of lateral flow assay (LEA), antigen-antibody-based diagnostic kits and the like on the basis of deep learning, and thus can reduce the time for confirming results.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 20, 2024
    Inventors: Jeong Hoon LEE, Ki Baek LEE, Yong Kyoung YOO, Seung Min LEE, Hak Jun LEE, Ji Won MOON
  • Patent number: 12012619
    Abstract: An NADPH-regeneration system based on monomeric isocitrate dehydrogenase (IDH) and a use thereof. Specifically, the present invention relates to a recombinant vector including a polynucleotide encoding an isocitrate dehydrogenase recombinant protein derived from Corynebacterium glutamicum (CgIDH) and an isocitrate dehydrogenase recombinant protein derived from Azotobacter vinelandii (AvIDH), a method for producing the recombinant protein, and an NADPH-regeneration system using the recombinant protein produced by the method. The enzyme in a monomeric form that may be efficiently used in the NADPH-regeneration system in the transformant into which the recombinant vector was introduced, was found, and the NADPH-regeneration system using the enzyme in a monomeric form has a very high utility value as biological parts and biocatalyst materials that provides NADPH to the NADPH-dependent enzyme.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: June 18, 2024
    Assignee: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
    Inventors: Geun Joong Kim, Hun-Dong Lee, Su-Kyoung Yoo, Dae Eun Cheong, Chul-Ho Yun, Hye-Ji Choi, Sang-Oh Ahn
  • Publication number: 20230340049
    Abstract: Provided is a method of preparing a circular permutation (CP)-based functional recombinant human-derived fibroblast growth factor 7 and a use thereof. The fibroblast growth factor 7 to which a circular permutation is applied (CP-hFGF7115-114) is independently expressed in a host cell, such that soluble overexpression of the fibroblast growth factor 7 may be induced without causing problems according to the related art, such as lower expression level and stability compared to those of a wild-type hFGF7 protein and amino acid changes in a process of removing a fusion tag.
    Type: Application
    Filed: December 5, 2022
    Publication date: October 26, 2023
    Inventors: Geun-Joong KIM, Hye-Ji CHOI, Dae-Eun CHEONG, Su-Kyoung YOO, Hanui LEE
  • Publication number: 20230194319
    Abstract: Disclosed is an ultrasonic flow meter configured to measure the flow rate of a fluid using ultrasonic waves, wherein branch flow paths are formed in a flow path in order to regularly reduce the sectional area of the flow path over at least a predetermined distance between reflectors such that the flow speed of the fluid in the flow path between the reflectors is increased without pressure loss, whereby it is possible to improve measurement accuracy.
    Type: Application
    Filed: November 16, 2022
    Publication date: June 22, 2023
    Inventor: Na Kyoung Yoo
  • Publication number: 20230160731
    Abstract: An ultrasonic flow meter, according to an embodiment of the present disclosure, comprises a measurement tube, an ultrasonic sensor module, and a pair of reflectors, wherein the measurement tube is configured to allow fluid to flow therethrough and comprises a pair of sensor holes spaced apart from each other in a longitudinal direction on an outer surface thereof, the ultrasonic sensor module comprises a pair of ultrasonic transducers mounted in the sensor holes, the ultrasonic transducers being configured to send and receive ultrasonic waves, and the pair of reflectors are located in the measurement tube, and wherein the measurement tube further comprises a flow path sectional area reduction member comprising a plurality of plates arranged such that a plurality of branch flow paths are formed in the longitudinal direction around a central flow path in between the pair of reflectors.
    Type: Application
    Filed: January 6, 2023
    Publication date: May 25, 2023
    Inventor: Na Kyoung Yoo
  • Publication number: 20230143972
    Abstract: An NADPH-regeneration system based on monomeric isocitrate dehydrogenase (IDH) and a use thereof. Specifically, the present invention relates to a recombinant vector including a polynucleotide encoding an isocitrate dehydrogenase recombinant protein derived from Corynebacterium glutamicum (CgIDH) and an isocitrate dehydrogenase recombinant protein derived from Azotobacter vinelandii (AvIDH), a method for producing the recombinant protein, and an NADPH-regeneration system using the recombinant protein produced by the method. The enzyme in a monomeric form that may be efficiently used in the NADPH-regeneration system in the transformant into which the recombinant vector was introduced, was found, and the NADPH-regeneration system using the enzyme in a monomeric form has a very high utility value as biological parts and biocatalyst materials that provides NADPH to the NADPH-dependent enzyme.
    Type: Application
    Filed: November 11, 2022
    Publication date: May 11, 2023
    Inventors: Geun Joong KIM, Hun-Dong LEE, Su-Kyoung YOO, Dae Eun CHEONG, Chul-Ho YUN, Hye-Ji CHOI, Sang-Oh AHN
  • Patent number: 11608366
    Abstract: A recombinant vector according to an embodiment of the present invention may produce fibroblast growth factor 19 (FGF19) having enhanced solubility. The synonymous codon substitution variant fibroblast growth factor 19 (scvhFGF19) and chaperone ?ssDsbC may be simultaneously and independently expressed in a host cell into which the recombinant vector is introduced, thereby it is possible to overexpress the fibroblast growth factor 19 in a soluble state.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 21, 2023
    Assignees: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY, KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Geun Joong Kim, Hye Ji Choi, Dae Eun Cheong, Su Kyoung Yoo, Dong Hyun Lee, Jae Hong Park, Jung Hyun Lee, Hyung Soon Yim, Young Jun An, Kyeong Won Lee
  • Patent number: 11592415
    Abstract: The present invention relates to an interdigitated microelectrode biosensor using the reaction between receptors and target biomaterials, the interdigitated microelectrode biosensor comprising: an insulating layer formed so as to cover all of the sensor formation area of a substrate; a first interdigitated microelectrode formed such that a plurality of first protruding electrodes are arranged in a comb shape on the insulating layer of the substrate; a second interdigitated microelectrode, facing the first interdigitated microelectrode and formed such that a plurality of second protruding electrodes are arranged in a comb shape on the insulating layer of the substrate such that the plurality of second protruding electrodes are arranged to respectively interdigitate with the plurality of first protruding electrodes formed at the first interdigitated microelectrode; and a plurality of receptors arranged in the space between the first and second interdigitated microelectrodes, which are arranged to interdigitate
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: February 28, 2023
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyo Seon Hwang, Young Soo Kim, Jin Sik Kim, Yong Kyoung Yoo
  • Publication number: 20220406472
    Abstract: The present invention relates to a method for providing medical equipment and medicine information, and includes: a medical paper database that provides medical papers; a medical equipment and medicine database that provides medical equipment and medicine information; and a service server that finds, from the medical equipment and medicine database, information about medical equipment and medicine and posts the found medical equipment and medicine on a network, and also periodically searches the medical paper database for the papers in which the posted medical equipment and medicine have been described to provide a user terminal with paper information and links.
    Type: Application
    Filed: October 28, 2020
    Publication date: December 22, 2022
    Inventors: Sang Wook HAN, Woo Kyoung YOO
  • Publication number: 20220267742
    Abstract: The present invention relates to an NADPH-regeneration system based on monomeric isocitrate dehydrogenase (IDH) and a use thereof. Specifically, the present invention relates to a recombinant vector including a polynucleotide encoding an isocitrate dehydrogenase recombinant protein derived from Corynebacterium glutamicum (CgIDH) and an isocitrate dehydrogenase recombinant protein derived from Azotobacter vinelandii (AvIDH), a method for producing the recombinant protein, and an NADPH-regeneration system using the recombinant protein produced by the method. In the present invention, the enzyme in a monomeric form that may be efficiently used in the NADPH-regeneration system in the transformant into which the recombinant vector was introduced, was found, and the NADPH-regeneration system using the enzyme in a monomeric form has a very high utility value as biological parts and biocatalyst materials that provides NADPH to the NADPH-dependent enzyme.
    Type: Application
    Filed: March 1, 2021
    Publication date: August 25, 2022
    Inventors: Geun Joong KIM, Hun-Dong LEE, Su-Kyoung YOO, Dae Eun CHEONG, Chul-Ho YUN, Hye-Ji CHOI, Sang-Oh AHN
  • Patent number: 11313831
    Abstract: An interdigitated electrode biosensor includes an insulating layer configured to fully cover a sensor forming region of a substrate, a first interdigitated microelectrode configured such that a plurality of first protruding electrodes is arranged in a shape of a comb on the substrate, a second interdigitated microelectrode configured such that a plurality of second protruding electrodes is arranged in a shape of a comb and each interdigitates with the plurality of first protruding electrodes, and a plurality of receptors that is immobilized in a space between the first interdigitated microelectrode and the second interdigitated microelectrode and reacts specifically to target biomaterials.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 26, 2022
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyoseon Hwang, Jinsik Kim, Hye Jin Kim, Yong Kyoung Yoo, Youngsoo Kim
  • Patent number: 11236309
    Abstract: A recombinant vector according to an embodiment of the present invention may be used for producing a reconstituted cytochrome P450 oxygenase-reductase fusion protein. Oxygenase and reductase may be independently expressed in a host cell into which the recombinant vector is introduced, and then may be fused with a split intein so that it is possible to increase the heme content contained in the active site of the oxygenase and improve enzyme activity and stability.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: February 1, 2022
    Assignee: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
    Inventors: Geun Joong Kim, Chul Ho Yun, Dae Eun Cheong, Su Kyoung Yoo, Hye Ji Choi, Thien Kim Le
  • Publication number: 20210355182
    Abstract: A recombinant vector according to an embodiment of the present invention may produce fibroblast growth factor 19 (FGF19) having enhanced solubility. The synonymous codon substitution variant fibroblast growth factor 19 (scvhFGF19) and chaperone ?ssDsbC may be simultaneously and independently expressed in a host cell into which the recombinant vector is introduced, thereby it is possible to overexpress the fibroblast growth factor 19 in a soluble state, due to when not utilizing tags such as an existing fusion partner there is no change in the amino acid, which is a problem generated in the removal process.
    Type: Application
    Filed: August 19, 2020
    Publication date: November 18, 2021
    Inventors: Geun Joong KIM, Hye Ji CHOI, Dae Eun CHEONG, Su Kyoung YOO, Dong Hyun LEE, Jae Hong PARK, Jung Hyun LEE, Hyung Soon YIM, Young Jun AN, Kyeong Won LEE
  • Publication number: 20210355456
    Abstract: A recombinant vector according to an embodiment of the present invention may be used for producing a reconstituted cytochrome P450 oxygenase-reductase fusion protein. Oxygenase and reductase may be independently expressed in a host cell into which the recombinant vector is introduced, and then may be fused with a split intein so that it is possible to increase the heme content contained in the active site of the oxygenase and improve enzyme activity and stability.
    Type: Application
    Filed: August 17, 2020
    Publication date: November 18, 2021
    Inventors: Geun Joong KIM, Chul Ho YUN, Dae Eun CHEONG, Su Kyoung YOO, Hye Ji CHOI, Thien Kim Le
  • Publication number: 20210239646
    Abstract: The RGO (Reduced Graphene Oxide)-based bio sensor according to the present invention comprises: a source electrode and a drain electrode formed on a substrate; an RGO channel formed between the source electrode and the drain electrode; a PDMS (polydimethylsiloxane) chip supplying a reaction solution to the RGO channel; a passivation layer for sealing in order to prevent the reaction solution supplied through the PDMS chip from touching the source electrode and the drain electrode; and a gate electrode electrically connected to the reaction solution contacted to the RGO by being supplied through the PDMS chip. At this time, the passivation layer is formed with a SU-8 photoresistor, and the gate electrode is directly contacted to the reaction solution to thereby realize a liquid phase driving. The passivation layer is formed with SU-8 to allow supply of reaction solution through PDMS chip to be conveniently and stably realized. The operation is made possible at a gate voltage of ?1.0V˜1.
    Type: Application
    Filed: May 29, 2019
    Publication date: August 5, 2021
    Applicant: XYZ PLATFORM INC.
    Inventors: Kyo Seon HWANG, Myung Sic CHAE, Dong Sung PARK, Yong Kyoung YOO, Jae Hyun KIM
  • Publication number: 20190331563
    Abstract: Embodiments of the present invention provide a lateral flow assay method and strip wherein a sample is injected into a sample pad, a preconcentration kit is coupled to the sample pad to preconcentrate analytes, and a conjugate pad or a test pad is connected to the sample pad to transfer the analytes to the conjugate pad or the test pad, whereby a biomarker present at a low concentration can be detected.
    Type: Application
    Filed: November 16, 2017
    Publication date: October 31, 2019
    Inventors: Jeong Hoon Lee, Yong Kyoung Yoo, Sung II Han, Cheon Jung Kim
  • Patent number: 10368415
    Abstract: An improved lighting apparatus is disclosed. The lighting apparatus includes a direct current power supply unit, a light emitting unit operating in response to a direct current voltage applied from the direct current power supply unit, and a voltage control unit located between the direct current power supply unit and the light emitting unit to control the level of a voltage applied from the direct current power supply unit to the light emitting unit. The light emitting unit includes first light emitting groups having a first correlated color temperature and being turned on at a first turn-on voltage (VB) or above and second light emitting groups having a second correlated color temperature and being turned on at a second turn-on voltage (VA) greater than the first turn-on voltage. The first light emitting groups are connected in parallel with the second light emitting groups.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: July 30, 2019
    Assignee: LUMENS CO., LTD.
    Inventors: Tae Kyoung Yoo, Seong Bok Yoon
  • Patent number: 10281419
    Abstract: A hydrogel-based interdigitated microelectrode biosensor is disclosed. The hydrogel-based interdigitated microelectrode biosensor includes: a first interdigitated microelectrode having a plurality of first protrusion electrodes arranged in a comb-like shape on a substrate; a second interdigitated microelectrode facing the first interdigitated microelectrode and having a plurality of second protrusion electrodes arranged in a comb-like shape on the substrate, the second protrusion electrodes being arranged alternately with the first protrusion electrodes of the first interdigitated microelectrode; and a hydrogel filled in a space between the first and second interdigitated microelectrodes arranged alternately with each other. The hydrogel is provided between the interdigitated microelectrodes such that the presence and concentration of a biological substance, such as a protein, are detected by measuring the impedance between the interdigitated microelectrodes.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 7, 2019
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyoseon Hwang, Nakwon Choi, Jinsik Kim, Hye Jin Kim, Yong Kyoung Yoo, Sang Yun Yeom, Woongsun Choi
  • Publication number: 20190041357
    Abstract: The present disclosure relates to an interdigitated electrode biosensor using dielectrophoresis, including an insulating layer configured to fully cover a sensor forming region of a substrate, a first interdigitated microelectrode configured such that a plurality of first protruding electrodes is arranged in a shape of a comb on the substrate, a second interdigitated microelectrode configured such that a plurality of second protruding electrodes is arranged in a shape of a comb and each interdigitates with the plurality of first protruding electrodes formed in the first interdigitated microelectrode, and a plurality of receptors that is immobilized in a space between the first interdigitated microelectrode and the second interdigitated microelectrode and reacts specifically to target biomaterials, wherein different voltages are uniformly or nonuniformly applied to the first interdigitated microelectrode and the second interdigitated microelectrode to generate a dielectrophoretic force by a nonuniform electric
    Type: Application
    Filed: November 9, 2016
    Publication date: February 7, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyoseon HWANG, Jinsik KIM, Hye Jin KIM, Yong Kyoung YOO, Youngsoo KIM