Patents by Inventor Takaomi Hanabusa

Takaomi Hanabusa 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).

  • Screen of projection display
    Patent number: 5615045
    Abstract: A longitudinal-stripe lenticular lens screen and a transverse-stripe lenticular lens screen are superposed, and a light diffusing agent is mixed only in the longitudinal-stripe lenticular lens screen. Therefore, the light transmittance is high although the angle of view can be three-dimensionally widened by the two lenticular lens screens. In addition, since scan lines of an image are blurred by two diffusion planes, Moire becomes inconspicuous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 25, 1997
    Assignee: Sony Corporation
    Inventors: Hirokazu Takuma, Hiromitsu Takeuchi, Takaomi Hanabusa
  • Screen of projection display
    Patent number: 5448401
    Abstract: A longitudinal-stripe lenticular lens screen and a transverse-stripe lenticular lens screen are superposed, and a light diffusing agent is mixed only in the longitudinal-stripe lenticular lens screen. Therefore, the light transmittance is high although the angle of view can be three-dimensionally widened by the two lenticular lens screens. In addition, since scan lines of an image are blurred by two diffusion planes, Moire becomes inconspicuous.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: September 5, 1995
    Assignee: Sony Corporation
    Inventors: Hirokazu Takuma, Hiromitsu Takeuchi, Takaomi Hanabusa