Patents by Inventor Takashi Ichijo

Takashi Ichijo 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: 7163325
    Abstract: A road indication device is provided. The road-guidance indicating device has a light projection unit including light control means for controlling a lamp and light emitted from the lamp. The light projection unit project a light whose peak luminosity is 30000 cd or more, i.e., the light has a luminosity equal to or larger than a peak luminosity of a headlight of a car running on the road. Since a light pillar of light having a high light output and a thick light pillar is projected from the light projection unit, the visuality of the light pillar is improved even in the bad weather and the boundary between the driveway and the shoulder on the road can be affirmatively guided and indicated.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: January 16, 2007
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Hiroyuki Kojima, Tomoko Ishiwata, Takashi Ichijo, Kozo Ogawa, Yasuharu Takano
  • Publication number: 20050002203
    Abstract: A road indication device is provided. The road-guidance indicating device has a light projection unit including light control means for controlling a lamp and light emitted from the lamp. The light projection unit project a light whose peak luminosity is 30000 cd or more, i.e., the light has a luminosity equal to or larger than a peak luminosity of a headlight of a car running on the road. Since a light pillar of light having a high light output and a thick light pillar is projected from the light projection unit, the visuality of the light pillar is improved even in the bad weather and the boundary between the driveway and the shoulder on the road can be affirmatively guided and indicated.
    Type: Application
    Filed: May 17, 2004
    Publication date: January 6, 2005
    Inventors: Hiroyuki Kojima, Tomoko Ishiwata, Takashi Ichijo, Kozo Ogawa, Yasuharu Takano