Patents by Inventor Tomoyuki Aiura

Tomoyuki Aiura 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).

  • Reflection type screen
    Patent number: 7349154
    Abstract: The reflection type screen comprises a reflection layer which is disposed on the opposite side to the projected light incident side of the screen, a horizontal view angle increasing layer which is disposed on the light incident side of the reflection layer, and a diffusion layer which is disposed on the light incident side of the horizontal view angle increasing layer. The horizontal view angle increasing layer has an array of convex ridges which are raised in a rear direction of the screen. Since the longitudinal direction of the ridges is aligned with the vertical direction of the screen, the view angle characteristics of the screen in a horizontal direction are improved and the diffusion characteristics of the screen in a vertical direction can be suppressed for preventing external disturbing light from an upper illumination light from being reflected toward the observers.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: March 25, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoyuki Aiura, Shuichi Yoshinaka, Takao Abumi, Haruhisa Takiguchi
  • Reflection type screen
    Publication number: 20040240054
    Abstract: The reflection type screen comprises a reflection layer which is disposed on the opposite side to the projected light incident side of the screen, a horizontal view angle increasing layer which is disposed on the light incident side of the reflection layer, and a diffusion layer which is disposed on the light incident side of the horizontal view angle increasing layer. The horizontal view angle increasing layer has an array of convex ridges which are raised in a rear direction of the screen. Since the longitudinal direction of the ridges is aligned with the vertical direction of the screen, the view angle characteristics of the screen in a horizontal direction are improved and the diffusion characteristics of the screen in a vertical direction can be suppressed for preventing external disturbing light from an upper illumination light from being reflected toward the observers.
    Type: Application
    Filed: April 27, 2004
    Publication date: December 2, 2004
    Inventors: Tomoyuki Aiura, Shuichi Yoshinaka, Takao Abumi, Haruhisa Takiguchi