Patents by Inventor Daeyang Oh

Daeyang 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: 20260188733
    Abstract: The present disclosure relates to a solid electrolyte layer, an all-solid-state battery including the solid electrolyte layer, and a method for manufacturing the solid electrolyte layer. The solid electrolyte layer includes a sulfide-based solid electrolyte, a binder, and an additive. The additive includes a metal acetylacetonate.
    Type: Application
    Filed: December 29, 2025
    Publication date: July 2, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventor: Daeyang OH
  • Publication number: 20260188689
    Abstract: The present disclosure relates to a positive electrode for an all-solid-state battery, an all-solid state battery including the positive electrode, and a method for manufacturing the positive electrode for an all-solid state battery. The positive electrode includes a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector, wherein the positive electrode active material layer includes a positive electrode active material, a sulfide-based solid electrolyte, a binder, and an additive. The additive includes metal-acetylacetonate.
    Type: Application
    Filed: December 29, 2025
    Publication date: July 2, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Daeyang OH, Jinhee KIM, Hoseon YOU, Dongwoo KANG
  • Publication number: 20260155435
    Abstract: The present disclosure relates to a solid electrolyte composite, a positive electrode active material slurry including the solid electrolyte composite, and a solid electrolyte slurry including the solid electrolyte composite. More particularly, the present disclosure relates to a solid electrolyte composite, which includes a sulfide-based solid electrolyte and a surface modifier on a surface of the sulfide-based solid electrolyte. The surface modifier includes a linear hydrocarbon chain and a polar functional group bonded to the linear hydrocarbon chain, and the surface modifier is attached to the surface of the sulfide-based solid electrolyte via the polar functional group.
    Type: Application
    Filed: November 25, 2025
    Publication date: June 4, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hoseon YOU, Jinhee KIM, Dongwoo KANG, Junghwan KIM, Daeyang OH
  • Publication number: 20260128365
    Abstract: A positive electrode slurry for an all-solid-state battery and a method for producing the positive electrode slurry, and an all-solid-state battery are provided. The positive electrode slurry includes a positive electrode active material, a conductive material, a binder, a sulfide-based solid electrolyte, a triphenylphosphine-based additive, and a solvent.
    Type: Application
    Filed: October 31, 2025
    Publication date: May 7, 2026
    Inventor: Daeyang OH
  • Publication number: 20260112710
    Abstract: Disclosed are positive electrodes and all-solid-state batteries including positive electrodes. A positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material and a solid electrolyte. The positive electrode active material layer includes a surface section and a deep section. An amount of lithium impurities in the surface section is greater than an amount of lithium impurities in the deep section. The amount of lithium impurities in the surface section is in a range of about 300 ppm to about 700 ppm.
    Type: Application
    Filed: September 30, 2025
    Publication date: April 23, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Dongwoo KANG, Jinhee KIM, Hoseon YOU, Daeyang OH, MyungSeop KIM
  • Publication number: 20260081147
    Abstract: Disclosed are methods of manufacturing positive electrode slurries for all-solid-state batteries, and positive electrodes manufactured using the methods. The method includes preparing a first mixture including a positive electrode active material and a solid electrolyte, adding a binder solution to the first mixture to perform a first kneading process on a second mixture having a solid content adjusted to a range of about 94 wt % to about 95 wt %, adding the binder solution to the second mixture to perform a second kneading process on a third mixture having a solid content adjusted to a range of about 90 wt % to about 93.9 wt %, and adding a conductive material solution to the third mixture to perform a mixing process on a fourth mixture having a solid content adjusted to a range of about 70 wt % to about 89.9 wt %.
    Type: Application
    Filed: September 11, 2025
    Publication date: March 19, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jinhee KIM, Hoseon YOU, Dongwoo KANG, Daeyang OH
  • Publication number: 20260074216
    Abstract: Disclosed are positive electrodes, all-solid-state batteries, and fabrication methods thereof. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a sulfide-based solid electrolyte, a binder that includes a first non-aqueous binder and a second non-aqueous binder, and a positive electrode active material. The first non-aqueous binder includes a fluorine-based binder. The second non-aqueous binder includes an acrylate-based binder.
    Type: Application
    Filed: July 21, 2025
    Publication date: March 12, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jinhee KIM, Hoseon YOU, Dongwoo KANG, Daeyang OH
  • Publication number: 20260058225
    Abstract: Disclosed are all-solid-state batteries and fabrication methods thereof. The all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. At least one of the positive electrode layer and the solid electrolyte layer includes a lubricant additive. The lubricant additive includes one of a first compound that includes a repeating unit, a second compound that includes a repeating unit, and a combination of the first compound and the second compound.
    Type: Application
    Filed: July 22, 2025
    Publication date: February 26, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hoseon YOU, Jinhee KIM, Dongwoo KANG, Daeyang OH, MyungSeop KIM
  • Publication number: 20260058118
    Abstract: Disclosed is a method of manufacturing a positive electrode. The method comprises manufacturing a first electrode plate by forming a first positive electrode active material layer on a first substrate, manufacturing a second electrode plate by forming a second positive electrode active material layer on a second substrate, stacking the second electrode plate on the first electrode plate to allow the second positive electrode active material layer to face the first positive electrode active material layer, laminating the first electrode plate and the second electrode plate, and recovering the second substrate. A first elongation of the first substrate is greater than a second elongation of the second substrate.
    Type: Application
    Filed: July 15, 2025
    Publication date: February 26, 2026
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jinhee KIM, Hoseon YOU, Dongwoo KANG, Daeyang OH
  • Patent number: 8704266
    Abstract: A light emitting device is provided that includes a substrate, a light emitting unit formed on the substrate, and an encapsulation unit. The encapsulation unit may include a first region corresponding to the light emitting unit and a second region coalesced with the substrate. The encapsulation unit of the first region or a part of the encapsulation unit of the first region may have a positive curvature.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: April 22, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hongmo Koo, Daeyang Oh
  • Publication number: 20120153284
    Abstract: A light emitting device is provided that includes a substrate, a light emitting unit formed on the substrate, and an encapsulation unit. The encapsulation unit may include a first region corresponding to the light emitting unit and a second region coalesced with the substrate. The encapsulation unit of the first region or a part of the encapsulation unit of the first region may have a positive curvature.
    Type: Application
    Filed: January 30, 2012
    Publication date: June 21, 2012
    Inventors: Hongmo Koo, Daeyang Oh
  • Patent number: 8129744
    Abstract: A light emitting device is provided that includes a substrate, a light emitting unit formed on the substrate, and an encapsulation unit. The encapsulation unit may include a first region corresponding to the light emitting unit and a second region coalesced with the substrate. The encapsulation unit of the first region or a part of the encapsulation unit of the first region may have a positive curvature.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: March 6, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hongmo Koo, Daeyang Oh
  • Publication number: 20100193832
    Abstract: A light emitting device is provided that includes a substrate, a light emitting unit formed on the substrate, and an encapsulation unit. The encapsulation unit may include a first region corresponding to the light emitting unit and a second region coalesced with the substrate. The encapsulation unit of the first region or a part of the encapsulation unit of the first region may have a positive curvature.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 5, 2010
    Inventors: Hongmo Koo, Daeyang Oh
  • Patent number: 7723747
    Abstract: A light emitting device is provided that includes a substrate, a light emitting unit formed on the substrate, and an encapsulation unit. The encapsulation unit may include a first region corresponding to the light emitting unit and a second region coalesced with the substrate. The encapsulation unit of the first region or a part of the encapsulation unit of the first region may have a positive curvature.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: May 25, 2010
    Assignee: LG Electronics Inc.
    Inventors: Hongmo Koo, Daeyang Oh
  • Publication number: 20090078933
    Abstract: An organic light emitting device includes a first electrode disposed on a substrate, a plurality of organic function layers disposed on the first electrode and comprising an emitting layer, and a second electrode disposed on the organic function layers. One of the organic layers includes an inorganic material. This layer may be formed adjacent the first electrode or adjacent the second electrode to form top-emission or bottom-emission structures.
    Type: Application
    Filed: December 4, 2007
    Publication date: March 26, 2009
    Inventors: Hongmo Koo, Daeyang Oh, Sangjeon Kim
  • Publication number: 20090079332
    Abstract: A light-emitting device includes a substrate with a thin film transistor, an insulating film on the substrate that includes a via hole exposing the thin film transistor, a first electrode on the insulating film and connected to the thin film transistor, an emitting layer on the first electrode, and a second electrode on the emitting layer and including a non-conductive layer and a transparent conductive layer sequentially disposed over the emitting layer. A thickness of the first electrode is a predetermined number of times greater than a thickness of the emitting layer, and a thickness of the second electrode is a predetermined number of times greater than the thickness of the emitting layer.
    Type: Application
    Filed: December 4, 2007
    Publication date: March 26, 2009
    Inventors: Hongmo Koo, Daeyang Oh
  • Publication number: 20090066232
    Abstract: An organic light emitting device is disclosed. The organic light emitting device includes a first substrate, an organic light emitting element on the first substrate, a second substrate facing the first substrate, and a seal member attaching the first substrate to the second substrate. The organic light emitting element includes an emitting layer. At least one of layers constituting the emitting layer includes a phosphorescence material. The seal member has an absorptance that lies substantially in a range between 25% and 35% at a wavelength of external light of approximately 305 nm to 330 nm.
    Type: Application
    Filed: December 31, 2007
    Publication date: March 12, 2009
    Inventors: Hongmo Koo, Daeyang Oh
  • Publication number: 20080211414
    Abstract: A light emitting device is provided that includes a substrate, a light emitting unit formed on the substrate, and an encapsulation unit. The encapsulation unit may include a first region corresponding to the light emitting unit and a second region coalesced with the substrate. The encapsulation unit of the first region or a part of the encapsulation unit of the first region may have a positive curvature.
    Type: Application
    Filed: December 4, 2007
    Publication date: September 4, 2008
    Inventors: Hongmo Koo, Daeyang Oh