Patents by Inventor Seung Ok Lee

Seung Ok Lee 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: 20240141302
    Abstract: The present application relates to a novel bacteriophage having enterotoxigenic Escherichia coli-specific bactericidal effect and an antibacterial composition comprising same, the novel bacteriophage CJ_Eco_20-4 having enterotoxigenic Escherichia coli-specific bactericidal effect, and being superbly acid and heat resistant to allow wide use in antibiotics, feed and additives therefor, beverages and additives therefor, disinfectants, detergents, and the like to prevent or treat infectious diseases caused by enterotoxigenic Escherichia coli.
    Type: Application
    Filed: June 15, 2021
    Publication date: May 2, 2024
    Applicant: CJ CheilJedang Corporation
    Inventors: Jong Soo JEON, Ji Eun KIM, Jun Ok MOON, Jong Pyo CHAE, Yu Jin KIM, Seung Eun LEE, Jin Seung PARK
  • Patent number: 11973179
    Abstract: A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 30, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Sang Bok Kim, Jik Soo Kim, Jeong Bae Yoon, Seung Ok Lee, Ji Hoon Choi
  • Publication number: 20240131092
    Abstract: The present application relates to a novel bacteriophage having Clostridium perfringens-specific bactericidal effect and an antibacterial composition comprising same, the novel bacteriophage CJ_CP_20-11-1 having Clostridium perfringens-specific bactericidal effect, and being superbly acid and heat resistant to allow wide use in antibiotics, feed and additives therefor, beverages and additives therefor, disinfectants, detergents, and the like to prevent or treat infectious diseases caused by Clostridium perfringens.
    Type: Application
    Filed: June 14, 2021
    Publication date: April 25, 2024
    Applicant: CJ CheilJedang Corporation
    Inventors: Jong Soo JEON, Ji Eun KIM, Jun Ok MOON, Jong Pyo CHAE, Yu Jin KIM, Seung Eun LEE
  • Publication number: 20240119949
    Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 11, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jeong Il SEO, Seung Kwon BEACK, Dae Young JANG, Kyeong Ok KANG, Tae Jin PARK, Yong Ju LEE, Keun Woo CHOI, Jin Woong KIM
  • Publication number: 20240098437
    Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 21, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jeong Il SEO, Seung Kwon BEACK, Kyeong Ok KANG, Jin Woong KIM, Jae Hyoun YOO
  • Patent number: 11921349
    Abstract: An embodiment comprises: a housing; a bobbin, disposed in the housing, for mounting a lens; a first coil arranged on an outer circumferential surface of the bobbin; a magnet arranged in the housing; a second coil arranged in the housing; and a magnetic member, which is attached to the second coil and increases the strength of an induction voltage induced to the second coil by means of an interaction according to a movement of the first coil.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: March 5, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Kap Jin Lee, Sang Ok Park, Seung Taek Shin
  • Publication number: 20230383426
    Abstract: An electrochemical hybrid catalyst has a structure in which a nitrogen-doped carbon nanostructure (N—C) composite is loaded or decorated with two single atom transition metals indirectly linked adjacent to each other, and thus exhibits high carbon monoxide selectivity and current density at a low overpotential during reduction reaction for converting carbon dioxide into carbon monoxide, and a carbon dioxide conversion system uses the same.
    Type: Application
    Filed: March 22, 2023
    Publication date: November 30, 2023
    Inventors: Hyun Su HAN, Ju Hwan IM, Hee Soo KIM, Tae Hong SEOK, Seung Ok LEE
  • Publication number: 20230369670
    Abstract: In a method for recovering active metals of a lithium secondary battery according to an embodiment, a cathode active material mixture is collected from the cathode of the lithium secondary battery, the cathode active material mixture is reduced by a reducing reaction to prepare a preliminary precursor mixture, an aqueous lithium precursor solution is formed from the preliminary precursor mixture, and an aluminum-containing material is removed from the aqueous lithium precursor solution with an aluminum removing resin.
    Type: Application
    Filed: August 24, 2021
    Publication date: November 16, 2023
    Inventors: Young Bin SEO, Min Ji SUNG, Ji Min KIM, Seung Ok LEE, In Ae LEE
  • Publication number: 20230357940
    Abstract: Disclosed are an electrochemical catalyst capable of lowering the overpotential of the oxygen evolution reaction (OER) during a water splitting reaction in spite of using inexpensive metals (specifically, base metals) instead of conventional noble metal catalysts in the complex water-splitting reactions that require high overpotential, and a water splitting system using the same.
    Type: Application
    Filed: March 22, 2023
    Publication date: November 9, 2023
    Inventors: Hyun Su HAN, Hee Soo KIM, Tae Hong SEOK, Seung Ok LEE, Ju Hwan IM
  • Publication number: 20230330655
    Abstract: Disclosed are an electrochemical catalyst capable of lowering the overpotential of the oxygen evolution reaction (OER) during a water splitting reaction even with a very small amount of noble metal in the complicated water splitting reaction that requires high overpotential, and a water splitting system using the same.
    Type: Application
    Filed: March 23, 2023
    Publication date: October 19, 2023
    Inventors: Hyun Su HAN, Ju Hwan IM, Hee Soo KIM, Tae Hong SEOK, Seung Ok LEE
  • Publication number: 20230250507
    Abstract: In a method for recovering an active metal of a lithium secondary battery, a sulfuric acid solution is added to a lithium metal composite oxide so as to prepare a sulfated active material solution. A transition metal is extracted from the sulfated active material solution. A lithium precursor is recovered by adding a lithium extracting agent to the solution remaining after the transition metal has been extracted from the sulfated active material solution. In the method, the amount of impurities is reduced, and sulfuric acid and the neutralizing agent can be recycled so that a high-yield lithium precursor recovery is enabled.
    Type: Application
    Filed: May 31, 2021
    Publication date: August 10, 2023
    Inventors: Hyeon Hui LEE, Ji Yun PARK, Young Bin SEO, Seung Ok LEE, Sung Real SON
  • Publication number: 20220344642
    Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle containing nickel, and a coating material formed on at least a portion of a surface of the lithium metal oxide particle. The coating material includes a metalloid element or a metal element. A surface coating level of the cathode active material is 0.3 or more.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 27, 2022
    Inventors: Sang Wook LEE, Young Hoon DO, Young Uk PARK, Yong Hyun CHO, Seung Ok LEE, Ji Sun LEE
  • Patent number: 11413333
    Abstract: The present invention relates to a composition containing an inducer of SIRT1 (silent mating type information regulation 2 homolog) expression for preventing or treating sepsis or septic shock. The inducer of SIRT1 expression can remarkably reduce the mortality caused by sepsis or septic shock by reducing pro-inflammatory cytokines and increasing anti-inflammatory cytokines. Therefore, the inducer of SIRT1 expression is useful for preventing or treating sepsis or septic shock.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 16, 2022
    Inventors: Myung Kwan Han, Chae Hwa Yoo, Eun Kyung Song, Seung Ok Lee
  • Publication number: 20220093962
    Abstract: A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 24, 2022
    Inventors: Sang Bok KIM, Jik Soo KIM, Jeong Bae YOON, Seung Ok LEE, Ji Hoon CHOI
  • Patent number: 10256510
    Abstract: Provided are an electrolyte for a sodium secondary battery, and a sodium secondary battery using the same, and the sodium secondary battery using the electrolyte for a sodium secondary battery according to the present invention may have an excellent cycle characteristic, charge-discharge capacity, and stability, thereby making it possible to be operated without deterioration at a low temperature for a long time.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 9, 2019
    Assignee: SK Innovation Co., Ltd.
    Inventors: Dai In Park, Seung Ok Lee, Jeong Soo Kim, Hyung Keun Lee
  • Patent number: 10218034
    Abstract: Provided are an electrolyte for a sodium secondary battery and a sodium secondary battery using the same. More particularly, the sodium secondary battery includes an anode containing sodium, a cathode containing a transition metal, and a sodium ion conductive solid electrolyte provided between the anode and the cathode, wherein the cathode is impregnated in an electrolyte containing a molten sodium salt and an electrolyte additive, the electrolyte additive including an inorganic sodium salt.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 26, 2019
    Assignees: SK INNOVATION CO., LTD., UNIST (ULSAN NATIONAL INSTITUTE SCIENCE AND TECHNOLOGY)
    Inventors: Seung Ok Lee, Won Sang Koh, Jeong Soo Kim, Dai In Park, Je Hyun Chae, Nam Soon Choi, Jun Yeong Jang
  • Publication number: 20180161398
    Abstract: The present invention relates to a composition containing an inducer of SIRT1 (silent mating type information regulation 2 homolog) expression for preventing or treating sepsis or septic shock. The inducer of SIRT1 expression can remarkably reduce the mortality caused by sepsis or septic shock by reducing pro-inflammatory cytokines and increasing anti-inflammatory cytokines. Therefore, the inducer of SIRT1 expression is useful for preventing or treating sepsis or septic shock.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Inventors: Myung Kwan HAN, Chae Hwa YOO, Eun Kyung SONG, Seung Ok LEE
  • Patent number: 9913880
    Abstract: The present invention relates to a composition containing an inducer of SIRT1 (silent mating type information regulation 2 homolog) expression for preventing or treating sepsis or septic shock. The inducer of SIRT1 expression can remarkably reduce the mortality caused by sepsis or septic shock by reducing pro-inflammatory cytokines and increasing anti-inflammatory cytokines. Therefore, the inducer of SIRT1 expression is useful for preventing or treating sepsis or septic shock.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 13, 2018
    Assignee: STEMDR INC.
    Inventors: Myung Kwan Han, Chae Hwa Yoo, Eun Kyung Song, Seung Ok Lee
  • Patent number: 9780380
    Abstract: Provided is a current collector including a laminate in which a conductive substrate and an insulator are laminated, wherein the insulator is a porous insulator formed with an open pore channel penetrating through the insulator. The current collector may be used as a current collector for an electrode of a secondary battery and stably maintain capacity of the secondary battery at the time of repeating charge and discharge cycles.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 3, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Je Hyun Chae, Jeong Soo Kim, Won Sang Koh, Seung Ok Lee, Young Shol Kim
  • Patent number: 9553337
    Abstract: Provided is a sodium secondary battery capable of operating at a low temperature. More particularly, the sodium secondary battery according to the present invention includes: an anode containing sodium; a cathode containing a transition metal and an alkali metal halide; and a sodium ion conductive solid electrolyte provided between the anode and the cathode, wherein the cathode is impregnated in a molten salt electrolyte containing a sodium.metal halogen salt including at least two kinds of halogens.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: January 24, 2017
    Assignees: SK Innovation Co., Ltd., Ceramatec, Inc.
    Inventors: Je Hyun Chae, Won Sang Koh, Seung Ok Lee, Dai In Park, Jeong Soo Kim, Sai Bhavaraju, Mathew Richard Robins, Alexis L. Eccleston, Ashok V. Joshi