Patents by Inventor Sugao Hosoi

Sugao Hosoi 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).

  • Light source apparatus for an endoscope
    Patent number: 5042915
    Abstract: A light source apparatus comprises a light source; a lens for collecting light from the light source; a light guide for receiving the light collected by the lens; and an adjusting device disposed between the light source and the lens and adjusting the quantity of light guided to the light guide so as not to change the light distributing characteristics by a throttled amount of the light quantity.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: August 27, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiromichi Akutsu, Sugao Hosoi
  • Illuminance controller for light source and endoscope including the same
    Patent number: 4834071
    Abstract: An illuminance controller of a light source for use in an endoscope or the like, including a diphragm for cutting a light beam generated by the light source to control an illuminance of the light beam, in which the light beam cut amount of the diaphragm is controlled by a diaphragm controller, and in which the illuminance of the light beam cut by the diaphragm varies with respect to a driving amount of a drive motor in accordance with an exponential function.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: May 30, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Sugao Hosoi, Hiromichi Akutsu