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).

  • Patent number: 12211630
    Abstract: Provided are stretchable electronics and a method for manufacturing the same. The stretchable electronics may include a substrate, a plurality of electronic elements disposed to be spaced apart from each other on the substrate, and a wire structure disposed on the substrate to connect the plurality of electronic elements to each other. The wire structure may include an insulator extending from one of the electronic elements to the other of the adjacent electronic elements and a metal wire configured to cover a top surface and side surfaces of the insulator. The insulator may include at least one bent part in a plan view.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: January 28, 2025
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ji Hun Choi, Chan Woo Park, Ji-Young Oh, Seung Youl Kang, Yong Hae Kim, Hee-ok Kim, Jeho Na, Jaehyun Moon, Jong-Heon Yang, Himchan Oh, Seong-Mok Cho, Sung Haeng Cho, Jae-Eun Pi, Chi-Sun Hwang
  • 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
  • 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