Patents by Inventor Koji Ashikazi

Koji Ashikazi 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).

  • Hologram judging apparatus
    Patent number: 8379281
    Abstract: A hologram judging apparatus includes a housing and first and second light sources attached to the housing and emitting reconstruction illumination light. In the hologram judging apparatus, the first and second light sources each include a wavelength component with a wavelength ? meeting the reconstruction condition of a Lippmann hologram, and any one of the first and second light sources is a light source making the reconstruction illumination light enter a hologram at an angle ?ref which is identical to another angle ?ref with respect to the normal in a plane of incidence, the other angle ?ref meeting the reconstruction condition of a Lippmann method.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: February 19, 2013
    Assignee: Sony Corporation
    Inventors: Akira Shirakura, Koji Ashikazi