Patents by Inventor Tomoya EBISAWA

Tomoya EBISAWA 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).

  • Light emitting element and light emitting element package
    Patent number: 9947834
    Abstract: A light emitting element includes: a substrate; a first conductive type semiconductor layer stacked on the substrate; a light emitting layer stacked on the first conductive type semiconductor layer; a second conductive type semiconductor layer stacked on the light emitting layer; an ITO layer stacked on the second conductive type semiconductor layer; and a reflective layer stacked on the ITO layer. The substrate is transparent to an emission wavelength of the light emitting layer, and the reflective layer includes a Ti-containing first layer stacked on the ITO layer to make contact with the ITO layer and an Al-containing second layer stacked on the first layer in an opposite side to the ITO layer.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: April 17, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Tomoya Ebisawa, Tomohito Kawase
  • LIGHT EMITTING ELEMENT AND LIGHT EMITTING ELEMENT PACKAGE
    Publication number: 20140191268
    Abstract: A light emitting element includes: a substrate; a first conductive type semiconductor layer stacked on the substrate; a light emitting layer stacked on the first conductive type semiconductor layer; a second conductive type semiconductor layer stacked on the light emitting layer; an ITO layer stacked on the second conductive type semiconductor layer; and a reflective layer stacked on the ITO layer. The substrate is transparent to an emission wavelength of the light emitting layer, and the reflective layer includes a Ti-containing first layer stacked on the ITO layer to make contact with the ITO layer and an Al-containing second layer stacked on the first layer in an opposite side to the ITO layer.
    Type: Application
    Filed: January 7, 2014
    Publication date: July 10, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Tomoya EBISAWA, Tomohito KAWASE