Patents by Inventor Hirotatsu Ishi

Hirotatsu Ishi 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: 20090224240
    Abstract: A semiconductor light emitting element of the present invention comprises: a zinc oxide (ZnO) single crystal substrate 12 with a substrate surface of a plane orientation insusceptible to a piezo electric field; a Lattice-matched layer 13 formed on the substrate surface to be lattice-matched with the ZnO single crystal substrate 12; an active layer 15 of indium gallium nitride (InxGa1-xN, 0<x<1); two of cladding layers 14 and 16 to be lattice-matched with the active layer 15 and/or the Lattice-matched layer 13.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 10, 2009
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Tatsuyuki Shinagawa, Hirotatsu Ishi, Akihiko Kasukawa