Patents by Inventor Susumu TOKO

Susumu TOKO 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).

  • Method for manufacturing light emitting element
    Patent number: 10490694
    Abstract: A method of manufacturing a plurality of light emitting elements, the method includes: providing a semiconductor wafer; dividing the p-side nitride semiconductor layer into a plurality of demarcated element regions; forming a protective layer on regions including an outer periphery of an upper surface of the p-side nitride semiconductor layer of each of the plurality of demarcated element regions and exposed side surfaces in the semiconductor structure that are formed by the selectively removing the portion of the p-side nitride semiconductor layer; reducing a resistance of regions of the p-side nitride semiconductor layer; and dividing the semiconductor wafer into a plurality of light emitting elements.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 26, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Kazuhiro Nagamine, Yoshiki Inoue, Susumu Toko, Junya Narita
  • METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT
    Publication number: 20180287009
    Abstract: A method of manufacturing a plurality of light emitting elements, the method includes: providing a semiconductor wafer; dividing the p-side nitride semiconductor layer into a plurality of demarcated element regions; forming a protective layer on regions including an outer periphery of an upper surface of the p-side nitride semiconductor layer of each of the plurality of demarcated element regions and exposed side surfaces in the semiconductor structure that are formed by the selectively removing the portion of the p-side nitride semiconductor layer; reducing a resistance of regions of the p-side nitride semiconductor layer; and dividing the semiconductor wafer into a plurality of light emitting elements.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 4, 2018
    Applicant: NICHIA CORPORATION
    Inventors: Kazuhiro NAGAMINE, Yoshiki INOUE, Susumu TOKO, Junya NARITA