Patents by Inventor II Yu

II Yu 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).

  • Phosphors having longer lifespan
    Publication number: 20020145379
    Abstract: A phosphor having longer lifespan which includes sulfur and has a perovskite structure.
    Type: Application
    Filed: December 27, 2001
    Publication date: October 10, 2002
    Applicant: Samsung SDI Co., Ltd.
    Inventors: II Yu, Sang-Hyuk Lee, Young-chul You, Kyu-chan Park