Patents by Inventor Yuji SAKAKIHARA

Yuji SAKAKIHARA 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 device
    Patent number: 10884172
    Abstract: A light-emitting device includes a light-emitting element having a light-emitting surface, and a plurality of protruding portions being separated from each other and disposed on the light-emitting surface. The protruding portions are transparent. Each of the protruding portions includes a light guide portion and a light distribution control portion. The light guide portion has a columnar configuration and is provided at a light-emitting surface side of the protruding portion. The light distribution control portion is provided on the light guide portion. The light distribution control portion is asymmetric with respect to a central axis of the light guide portion and has a tilted surface that is tilted with respect to the central axis.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 5, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nagamoto, Koichi Amari, Yuji Sakakihara
  • LIGHT EMITTING DEVICE
    Publication number: 20200096691
    Abstract: A light-emitting device includes a light-emitting element having a light-emitting surface, and a plurality of protruding portions being separated from each other and disposed on the light-emitting surface. The protruding portions are transparent. Each of the protruding portions includes a light guide portion and a light distribution control portion. The light guide portion has a columnar configuration and is provided at a light-emitting surface side of the protruding portion. The light distribution control portion is provided on the light guide portion. The light distribution control portion is asymmetric with respect to a central axis of the light guide portion and has a tilted surface that is tilted with respect to the central axis.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 26, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Takuya NAGAMOTO, Koichi AMARI, Yuji SAKAKIHARA