Patents by Inventor KiJu Um

KiJu Um 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: 10825674
    Abstract: An apparatus for mass spectrometry includes a plate on which a semiconductor wafer including an organic matter is disposed. A hybrid provider provides a ZnO-graphene hybrid to a predetermined region on the semiconductor wafer. A mass analyzer detects the organic matter in the predetermined region using laser desorption/ionization mass spectrometry (LDI-MS).
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: November 3, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Kook Joo Kim, KiJu Um, Cheol Sang Yoon, KangTaek Lee
  • Publication number: 20190279856
    Abstract: An apparatus for mass spectrometry includes a plate on which a semiconductor wafer including an organic matter is disposed. A hybrid provider provides a ZnO-graphene hybrid to a predetermined region on the semiconductor wafer. A mass analyzer detects the organic matter in the predetermined region using laser desorption/ionization mass spectrometry (LDI-MS).
    Type: Application
    Filed: February 28, 2019
    Publication date: September 12, 2019
    Inventors: KOOK JOO KIM, KiJu Um, Cheol Sang Yoon, KangTaek Lee