Patents by Inventor Yasutomo MITSUI

Yasutomo MITSUI 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: 12002914
    Abstract: A semiconductor light-emitting element includes: a semiconductor stack including an n-type layer and a p-type layer and having at least one n exposure portion being a recess where the n-type layer is exposed; a p wiring electrode layer on the p-type layer; an insulating layer (i) continuously covering inner lateral surfaces of at least one n exposure portion and part of a top surface of the p wiring electrode layer and (ii) having an opening portion that exposes the n-type layer; an n wiring electrode layer disposed above the p-type layer and the p wiring electrode layer and in contact with the n-type layer in the opening portion; and at least one first n connecting member connected to the n wiring electrode layer in at least one first n terminal region. The n wiring electrode layer and the p-type layer are disposed below at least one first n terminal region.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: June 4, 2024
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Yasutomo Mitsui, Yasumitsu Kunoh, Masanori Hiroki, Shigeo Hayashi, Masahiro Kume, Masanobu Nogome
  • Publication number: 20230121327
    Abstract: A nitride semiconductor light-emitting element includes: a substrate; a rectangular semiconductor stack structure including an n-type semiconductor layer, an active layer, and a p-type semiconductor layer stacked in sequence above a main surface of the substrate; a p-side contact electrode in contact with the p-type semiconductor layer in a p-side contact region; and an n-side contact electrode in contact with the n-type semiconductor layer in an n-side contact region. In a plan view of the main surface, the semiconductor stack structure includes a first corner portion, the n-side contact region includes a linear first region extending in one direction from a first starting point spaced apart from the first corner portion, the p-side contact region is disposed between the first starting point and the first corner portion where the distance therebetween is less than or equal to 0.26 times the length of a shorter side of the semiconductor stack structure.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Yasutomo MITSUI, Masanori HIROKI, Shigeo HAYASHI, Masahiro KUME
  • Publication number: 20220131060
    Abstract: A semiconductor light-emitting element includes: a semiconductor stack including an n-type layer and a p-type layer and having at least one n exposure portion being a recess where the n-type layer is exposed; a p wiring electrode layer on the p-type layer; an insulating layer (i) continuously covering inner lateral surfaces of at least one n exposure portion and part of a top surface of the p wiring electrode layer and (ii) having an opening portion that exposes the n-type layer; an n wiring electrode layer disposed above the p-type layer and the p wiring electrode layer and in contact with the n-type layer in the opening portion; and at least one first n connecting member connected to the n wiring electrode layer in at least one first n terminal region. The n wiring electrode layer and the p-type layer are disposed below at least one first n terminal region.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventors: Yasutomo MITSUI, Yasumitsu KUNOH, Masanori HIROKI, Shigeo HAYASHI, Masahiro KUME, Masanobu NOGOME
  • Patent number: 11258001
    Abstract: A semiconductor light-emitting element includes: a semiconductor stack including an n-type, layer and a p-type layer and having at least one n exposure portion being a recess where the n-type layer is exposed; a p wiring electrode layer on the p-type layer; an insulating layer (i) continuously covering inner lateral surfaces of at least one n exposure portion and part of a top surface of the p wiring electrode layer and (ii) having an opening portion that exposes the n-type layer; an n wiring electrode layer disposed above the p-type layer and the p wiring electrode layer and in contact with the n-type layer in the opening portion; and at least one first n connecting member connected to the n wiring electrode layer in at least one first n terminal region. The n wiring electrode layer and the p-type layer are disposed below at least one first n terminal region.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 22, 2022
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Yasutomo Mitsui, Yasumitsu Kunoh, Masanori Hiroki, Shigeo Hayashi, Masahiro Kume, Masanobu Nogome
  • Publication number: 20210135074
    Abstract: A semiconductor light-emitting element includes: a semiconductor stack including an n-type, layer and a p-type layer and haying at least one n exposure portion being a recess where the n-type layer is exposed; a p wiring electrode layer on the p-type layer; an insulating layer (i) continuously covering inner lateral surfaces of at least one n exposure portion and part of a top surface of the p wiring electrode layer and (ii) having an opening portion that exposes the n-type layer; an n wiring electrode layer disposed above the p-type layer and the p wiring electrode layer and in contact with the n-type layer in the opening portion; and at least one first n connecting member connected to the n wiring electrode layer in at least one first n terminal region. The n wiring electrode layer and the p-type layer are disposed below at least one first n terminal region.
    Type: Application
    Filed: December 23, 2020
    Publication date: May 6, 2021
    Inventors: Yasutomo MITSUI, Yasumitsu KUNOH, Masanori HIROKI, Shigeo HAYASHI, Masahiro KUME, Masanobu NOGOME