Patents by Inventor Yusaku FUNAKURA

Yusaku FUNAKURA 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: 11043614
    Abstract: A light-emitting device includes: a semiconductor stacked body including: an n-type semiconductor layer having a light extraction surface and an n-side contact surface, the n-side contact surface being located on a side opposite the light extraction surface, a light-emitting layer located at a region of the n-type semiconductor layer other than the n-side contact surface, and a p-type semiconductor layer located on the light-emitting layer, wherein the p-type semiconductor layer surrounds the n-side contact surface in a top view; a first insulating film located at a region including a central portion of the n-side contact surface; an n-side electrode including an n-contact portion located at the n-side contact surface at a periphery of the first insulating film, the n-contact portion contacting the n-side contact surface; and a p-side electrode located on the p-type semiconductor layer and contacting the p-type semiconductor layer.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 22, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Yuta Mori, Yusaku Funakura
  • Publication number: 20190334062
    Abstract: A light-emitting device includes: a semiconductor stacked body including: an n-type semiconductor layer having a light extraction surface and an n-side contact surface, the n-side contact surface being located on a side opposite the light extraction surface, a light-emitting layer located at a region of the n-type semiconductor layer other than the n-side contact surface, and a p-type semiconductor layer located on the light-emitting layer, wherein the p-type semiconductor layer surrounds the n-side contact surface in a top view; a first insulating film located at a region including a central portion of the n-side contact surface; an n-side electrode including an n-contact portion located at the n-side contact surface at a periphery of the first insulating film, the n-contact portion contacting the n-side contact surface; and a p-side electrode located on the p-type semiconductor layer and contacting the p-type semiconductor layer.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Applicant: NICHIA CORPORATION
    Inventors: Yuta MORI, Yusaku FUNAKURA