Patents by Inventor Takashi KYOUYAMA

Takashi KYOUYAMA 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).

  • Luminaire and drawer device
    Patent number: 10149534
    Abstract: A luminaire is provided with a light source, and a light guide which is positioned in front of the light source. The light guide includes a first surface portion formed on the light source side, and a second surface portion formed on a side opposite the first surface portion. The first surface portion is constituted by a flat surface, and the second surface portion is constituted by an inclined surface which intersects at an angle other than a right angle against the optical axis of the light source. An angle formed between the inclined surface and the optical axis on the side of the light source is smaller on a center side of the second surface portion positioned on the optical axis, and is larger on a peripheral side of the second surface portion.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 11, 2018
    Assignee: NIFCO INC.
    Inventor: Takashi Kyouyama
  • LUMINAIRE AND DRAWER DEVICE
    Publication number: 20170303681
    Abstract: A luminaire is provided with a light source, and a light guide which is positioned in front of the light source. The light guide includes a first surface portion formed on the light source side, and a second surface portion formed on a side opposite the first surface portion. The first surface portion is constituted by a flat surface, and the second surface portion is constituted by an inclined surface which intersects at an angle other than a right angle against the optical axis of the light source. An angle formed between the inclined surface and the optical axis on the side of the light source is smaller on a center side of the second surface portion positioned on the optical axis, and is larger on a peripheral side of the second surface portion.
    Type: Application
    Filed: November 20, 2015
    Publication date: October 26, 2017
    Inventor: Takashi KYOUYAMA