Patents by Inventor Ji Woo Oh

Ji Woo Oh 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: 20240379933
    Abstract: A method for manufacturing a dry electrode for a secondary battery, includes the steps of: mixing active materials and binders to make a mixture and putting the mixture to a screw mixer; rotating the screw mixer to move the mixture forward and allowing the mixture to be primarily heated and melted; rotating the screw mixer to move the heated and melted mixture forward and allowing the mixture to be agitated; rotating the screw mixer to move the agitated mixture forward and allowing the mixture to be secondarily heated and agitated; rotating the screw mixer to pressurize the secondarily heated and agitated mixture forward and allowing the mixture to move to the end of a nozzle; allowing the mixture discharged to the form of a film through the nozzle to be compressed through rollers; and attaching the film to a metal foil to manufacture the dry electrode.
    Type: Application
    Filed: November 8, 2022
    Publication date: November 14, 2024
    Applicant: YUNSUNG F&C CO., LTD
    Inventors: Han Sung KIM, Wook Ryol HWANG, Jung Keun YOO, Ji Hee YOON, Jin Woo YI, Young Seok OH, Moon Kwang UM
  • Patent number: 12120943
    Abstract: A display device includes a supporting substrate including a polymeric material, base substrate disposed on an upper surface of the supporting substrate, a pixel array disposed in a display area of the base substrate, a transfer wiring disposed in a bending area of the base substrate and electrically connected to the pixel array, and an organic filling portion disposed under the transfer wiring in the bending area. The base substrate includes an organic film including a polymeric material, and an inorganic barrier film overlapping the organic film and extending outwardly from an edge of the organic film. The organic filling portion contacts the organic film of the base substrate.
    Type: Grant
    Filed: August 2, 2023
    Date of Patent: October 15, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wang Woo Lee, Sung Ho Kim, Hyeon Sik Kim, Joon Hyoung Park, Seok Je Seong, Jin Sung An, Jin Seok Oh, Min Woo Woo, Ji Seon Lee, Pil Suk Lee, Yun Sik Joo
  • Publication number: 20240337443
    Abstract: Disclosed is a kiln having a portion with which raw materials for preparing active materials and/or the prepared active materials come into contact during firing, the portion containing a substance represented by the following Formula 1: NiaXz ??(1) wherein a and z are weight fractions satisfying 0.85?a<1 and 0<z?0.15, respectively; and X includes at least one element selected from the group consisting of Cr, Fe, Co, Mn, P, Cu, Mo, Si, Nb, Ti, W, C, Na, Al, Mg, Zn, B, Ta, O, Sn, Ag, Re, Ru and Zr, or an alloy or compound of at least two elements selected therefrom.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 10, 2024
    Inventors: Sung Woo CHO, Sung Kyun CHANG, Hyuk Won KWON, Ji Woo OH, Doe Hyoung KIM, Hyeon Cheol JEONG
  • Publication number: 20240328858
    Abstract: The present invention relates to an apparatus and method for detecting a dye mixing ratio, and the apparatus for detecting a dye mixing ratio includes a storage unit configuration to store computer color matching (CCM) colorimetric data for each dye concentration, and a processor configuration to convert the CCM colorimetric data for each dye concentration store in the storage unit into absorbance data and detect a dye mixing ratio that matches an absorbance graph of a buyer order, on the basis of an artificial intelligence model.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Inventors: Hyun Woo OH, Ji Yong HWANG
  • Patent number: 12104471
    Abstract: The present disclosure relates to a multi-plunger lift control device for increasing device durability and production efficiency by synchronizing and controlling operating states of a plurality of plunger lifts sharing some production lines. The multi-plunger lift control device according to the present disclosure includes a plunger lift synchronization setting unit configured to set an operation priority of the plurality of plunger lifts so that production stages of the plurality of plunger lifts do not collide, a stage monitoring unit for each plunger lift configured to monitor current production stages of the plurality of plunger lifts, and a plunger lift logic control unit configured to synchronize and control production operations of the plurality of plunger lifts based on the operation priority set by the plunger lift synchronization setting unit and stage monitoring information received from the stage monitoring unit for each plunger lift.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: October 1, 2024
    Assignee: NAONWORKS Co., Ltd.
    Inventors: June Kyoung Lee, Seong Woo Lee, Jae Yoon Shim, Ji Su Oh
  • Patent number: 12096651
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: September 17, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20240256469
    Abstract: Disclosed herein is a method for key-value caching. The method may include initializing a key-value cache and processing data in the order of a key-value store, a service, and the key-value cache.
    Type: Application
    Filed: November 13, 2023
    Publication date: August 1, 2024
    Inventors: Yun-Kon KIM, Dong-Jae KANG, Byoung-Seob KIM, Soo-Young KIM, Seung-Jo BAE, Ji-Hoon SEO, Seok-Ho SON, Byeong-Thaek OH, Young-Woo JUNG
  • Publication number: 20240249038
    Abstract: An apparatus for predicting an absorbance spectrum of a mixed dye based on CCM reflectance data. The apparatus includes: an input module receiving input of a customer order for dyeing; and a processor reproducing an absorbance spectrum through conversion of reflectance data in a QTX file of the customer order, wherein the processor generates absorbance spectra and predicted colors through conversion of reflectance data of single-color dyes in a dyeing factory; implements a predicted absorbance spectrum of a mixed dye produced according to a recommended single-color dye mixing ratio corresponding to CCM values of the customer order; compares the predicted absorbance spectrum of the mixed dye with the absorbance spectrum according to the customer order; and complements or corrects the recommended single-color dye mixing ratio to match the predicted absorbance spectrum of the mixed dye to the absorbance spectrum according to the customer order.
    Type: Application
    Filed: December 27, 2023
    Publication date: July 25, 2024
    Inventors: Ji Yong HWANG, Hyun Woo OH
  • Patent number: 12036175
    Abstract: Provided is a vibratory stimulation device including a first substrate, a connection band connected to both sides of the first substrate, and a vibration element array including a plurality of vibration elements provided on the first substrate, wherein each of the vibration elements includes a stand provided on the first substrate, a vibration film provided on the stand and in contact with the stand at an edge, a vibrator provided on an upper or lower surface of the vibration film, and an electrode wire connected to the vibrator, wherein the vibration film includes a material that is more flexible and stretchable than the stand.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: July 16, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kang-Ho Park, Jong Tae Lim, Seung Youl Kang, Bock Soon Na, Chan Woo Park, Seongdeok Ahn, Wooseup Youm, Ji-Young Oh
  • Patent number: 11888130
    Abstract: Disclosed are a secondary battery, an active material, a method for preparing the same, and a lithium secondary battery including the same. In an embodiment, provided is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product by consuming thermal energy when exposed to a predetermined temperature or higher in a use environment of the secondary battery, thereby improving thermal safety of the secondary battery.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 30, 2024
    Assignee: L&F CO., LTD.
    Inventors: Sung Kyun Chang, Sang Hoon Jeon, Jun Ho Shin, Ji Woo Oh, Hee Won Jung, Hye-Rim Bae, Chang Hyun Lee, Doe Hyoung Kim
  • Publication number: 20230110681
    Abstract: Disclosed is a coating material for coating a surface of a kiln for preparing an active material, the coating material being represented by the following Formula 1: NiaXz??(1) wherein an equation of a+z=1 is satisfied, with the proviso that 0.2?a<1.0 and 0<z?0.8 are satisfied, and X is at least one element selected from the group consisting of W, Cr, Co, Fe, Cu, Na, Al, Mg, Si, Zn, K, Ti, Mo, N, B, P, C, Ta, Nb, O, Mn, Sn, Ag and Zr, or an alloy or compound of two or more elements selected therefrom.
    Type: Application
    Filed: March 11, 2021
    Publication date: April 13, 2023
    Inventors: Jun Ho SHIN, Sung Kyun CHANG, Seung Hwan KIM, Jong Wan KIM, Ji Woo OH, Doe Hyoung KIM
  • Patent number: 11394059
    Abstract: Disclosed is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product when exposed to a predetermined temperature or higher in a use environment of the secondary battery, wherein the reaction product is a non-conductor.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: July 19, 2022
    Assignee: L&F CO., LTD.
    Inventors: Sung Kyun Chang, Sang Hoon Jeon, Jun Ho Shin, Ji Woo Oh, Hee Won Jung, Hye-Rim Bae, Chang Hyun Lee, Doe Hyoung Kim
  • Publication number: 20200335782
    Abstract: The present invention relates to a cathode active material for a lithium secondary battery having improved output characteristics at a low temperature, and to a lithium secondary battery comprising the same, the cathode active material comprising: a lithium metal oxide comprising Ni, Co and Mn to enable reversible intercalation and de-intercalation of lithium, wherein the lithium metal oxide is doped with a dopant (M) to substitute any one or more elements of Ni, Co and Mn, and the lithium metal oxide has a c-axis lattice constant value of 14.20 ? or more and 14.30 ? or less.
    Type: Application
    Filed: November 28, 2017
    Publication date: October 22, 2020
    Inventors: Ji Woo OH, Hee won JUNG, Jun Ho SHIN, Su An CHOI, Sang Hoon JEON, Ji Sun AN
  • Publication number: 20200172395
    Abstract: Disclosed is a system for producing hydrogen from a byproduct gas generated during a steelmaking process or a coal chemistry process, including a reformer for reforming the byproduct gas using steam (H2O), a separator for separating a reformed gas supplied from the reformer into a reduction gas and hydrogen gas (H2), a first reactor for reducing ferric oxide (Fe2O3) into ferrous oxide (FeO) using the reduction gas supplied from the separator, and a second reactor for producing ferrous-ferric oxide (Fe3O4) and hydrogen gas (H2) by mixing the ferrous oxide (FeO) supplied from the first reactor with steam (H2O), wherein the concentration of hydrogen gas (H2) in the reformed gas discharged from the reformer is higher than the concentration of hydrogen gas (H2) in the byproduct gas.
    Type: Application
    Filed: November 13, 2019
    Publication date: June 4, 2020
    Inventors: Seung Hyeon CHOI, Kyung Moon LEE, Jung Joo PARK, Hoon Mo PARK, Gwang Woo HAN, Joong Myeon BAE, Ji Woo OH
  • Publication number: 20200144682
    Abstract: Disclosed are a secondary battery, an active material, a method for preparing the same, and a lithium secondary battery including the same. In an embodiment, provided is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product by consuming thermal energy when exposed to a predetermined temperature or higher in a use environment of the secondary battery, thereby improving thermal safety of the secondary battery.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 7, 2020
    Applicant: L&F Co., Ltd.
    Inventors: Sung Kyun CHANG, Sang Hoon JEON, Jun Ho SHIN, Ji Woo OH, Hee Won JUNG, Hye-Rim BAE, Chang Hyun LEE, Doe Hyoung KIM
  • Publication number: 20200144680
    Abstract: Disclosed is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product when exposed to a predetermined temperature or higher in a use environment of the secondary battery, wherein the reaction product is a non-conductor.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 7, 2020
    Applicant: L&F Co., Ltd.
    Inventors: Sung Kyun CHANG, Sang Hoon JEON, Jun Ho SHIN, Ji Woo OH, Hee Won JUNG, Hye-Rim BAE, Chang Hyun LEE, Doe Hyoung KIM
  • Publication number: 20170312737
    Abstract: Provided is a method for manufacturing a diesel autothermal reforming catalyst, which includes: a step of coating a catalyst material containing an organic solvent, a binder, a plasticizer and a catalyst powder on a monolithic support; and a step of heat-treating the catalyst material at 500-900° C.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 2, 2017
    Inventors: Joong Myeon Bae, Ji Woo Oh, Min Seok Bae
  • Publication number: 20160228855
    Abstract: Provided is a catalyst for preferential oxidation for fuel reforming which includes a ceria support containing gadolinium, and a metal catalyst supported on the ceria support.
    Type: Application
    Filed: February 8, 2016
    Publication date: August 11, 2016
    Inventors: Joong Myeon Bae, Ji Woo Oh