Patents by Inventor Dong Youn Yoo

Dong Youn 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).

  • Publication number: 20240170614
    Abstract: A light-emitting element comprises a first semiconductor layer, an active layer provided on the first semiconductor layer, a second semiconductor layer provided on the active layer, an electrode layer provided on the second semiconductor layer, and an insulating film around outer peripheral surfaces of the first semiconductor layer, the active layer, the second semiconductor layer, and the electrode layer, wherein the active layer includes a cover layer including a plurality of quantum dots, and the first semiconductor layer, the active layer, the second semiconductor layer, and the electrode layer are sequentially stacked in one direction to form a shape of a rod.
    Type: Application
    Filed: August 31, 2023
    Publication date: May 23, 2024
    Inventors: Mi Hyang SHEEN, Dong Uk KIM, Kwan Jae LEE, Bo Hwa KIM, Dong Youn YOO, Hyeong Su CHOI
  • Patent number: 9331283
    Abstract: The method of manufacturing nanoparticles of a target material includes mixing graphene oxide with an aqueous solvent to prepare an aqueous solution, mixing the target material with an organic solvent to prepare an organic solution, mixing the aqueous solution with the organic solution, and preparing nanoparticles of the target material by the graphene oxide.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: May 3, 2016
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jung Ah Lim, Yong-Won Song, Jae-Min Hong, Dong Youn Yoo, Hee-Suk Kim
  • Publication number: 20140061546
    Abstract: A method of manufacturing nanoparticles, nanoparticles, and an organic light emitting diode, a solar cell, a printing ink, a bioimaging device, and a sensor including the same are provided. The method of manufacturing nanoparticles of a target material includes mixing graphene oxide with an aqueous solvent to prepare an aqueous solution, mixing the target material with an organic solvent to prepare an organic solution, mixing the aqueous solution with the organic solution, and preparing nanoparticles of the target material by the graphene oxide.
    Type: Application
    Filed: July 22, 2013
    Publication date: March 6, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jung Ah Lim, Yong-Won Song, Jea-Min Hong, Dong Youn Yoo, Hee-Suk Kim