Patents by Inventor Shigetsugu Koda

Shigetsugu Koda 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 with fluorescent member excited by semiconductor light emitting element
    Patent number: 6737681
    Abstract: A reflector that functions as a fluorescent member is formed of a transparent resin material including a fluorescent substance dispersed therein capable of emitting light by excitation of light emitted from a semiconductor light emitting element, on the bottom of the case so as to surround the semiconductor light emitting element, having an inner surface of curved surface of concave arc shape having a section extending from the height of the bottom of the case obliquely upward, in a shape that continues along substantially the entire circumference of an oval or elongated round shape, thereby achieving uniform light emission without color heterogeneity, for example, white light of high output power.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: May 18, 2004
    Assignee: Nichia Corporation
    Inventor: Shigetsugu Koda
  • Light emitting device with fluorescent member excited by semiconductor light emitting element
    Publication number: 20030038295
    Abstract: A reflector that functions as a fluorescent member is formed of a transparent resin material including a fluorescent substance dispersed therein capable of emitting light by excitation of light emitted from a semiconductor light emitting element, on the bottom of the case so as to surround the semiconductor light emitting element, having an inner surface of curved surface of concave arc shape having a section extending from the height of the bottom of the case obliquely upward, in a shape that continues along substantially the entire circumference of an oval or elongated round shape, thereby achieving uniform light emission without color heterogeneity, for example, white light of high output power.
    Type: Application
    Filed: August 22, 2002
    Publication date: February 27, 2003
    Applicant: NICHIA CORPORATION
    Inventor: Shigetsugu Koda