Patents by Inventor Shigeaki Yamano

Shigeaki Yamano 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).

  • Image display device
    Patent number: 7748854
    Abstract: A light-quantity adjusting function of a diaphragm used for light quantity control for improving the contrast of a projected image is controlled to cancel light quantity variation due to variation of the driving power of the light source for increasing the service life. This control keeps the quantity of light coming into a display element at a constant value and achieves both service life extension of the light source and image projection having no brightness fluctuation.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: July 6, 2010
    Assignee: Panasonic Corporation
    Inventors: Shingo Sugino, Tetsuro Shiota, Satoshi Hamada, Shigeaki Yamano
  • IMAGE DISPLAY DEVICE
    Publication number: 20090244496
    Abstract: A light-quantity adjusting function of a diaphragm used for light quantity control for improving the contrast of a projected image is controlled to cancel light quantity variation due to variation of the driving power of the light source for increasing the service life. This control keeps the quantity of light coming into a display element at a constant value and achieves both service life extension of the light source and image projection having no brightness fluctuation.
    Type: Application
    Filed: June 5, 2006
    Publication date: October 1, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Shingo Sugino, Tetsuro Shiota, Satoshi Hamada, Shigeaki Yamano