Patents by Inventor Iullan Gherasolu

Iullan Gherasolu 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).

  • Multi-Color Light Emitting Devices with Compositionally Graded Cladding Group III-Nitride Layers Grown on Substrates
    Publication number: 20150311381
    Abstract: A light emitting device includes a substrate, multiple n-type layers, and multiple p-type layers. The n-type layers and the p-type layers each include a group III nitride alloy. At least one of the n-type layers is a compositionally graded n-type group III nitride, and at least one of the p-type layers is a compositionally graded p-type group III nitride. A first ohmic contact for injecting current is formed on the substrate, and a second ohmic contact is formed on a surface of at least one of the p-type layers. Utilizing the disclosed structure and methods, a device capable of emitting light over a wide spectrum may be made without the use of phosphor materials.
    Type: Application
    Filed: May 5, 2015
    Publication date: October 29, 2015
    Applicant: ROSESTREET LABS ENERGY, INC.
    Inventors: Wladyslaw Walukiewicz, Iullan Gherasolu, Lothar A. Reichertz