Patents by Inventor Yukio Mashino

Yukio Mashino 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).

  • Camera employing a flash illumination device and a flash photographing system
    Patent number: 4425033
    Abstract: An interchangeable-lens camera is usable with a flash unit which stops the flash on the basis of the object distance and transmits a signal corresponding to a required aperture value. The camera includes a diaphragm control that responds to the light passing through the maximum aperture of the interchangeable lens and corrects for a particular maximum aperture. A selector causes the diaphragm control to respond either to the light or the signal transmitted by the flash and a switch aborts the maximum aperture connection during flash photography.
    Type: Grant
    Filed: July 8, 1982
    Date of Patent: January 10, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukio Iura, Masayoshi Yamamichi, Takashi Uchiyama, Tetsuya Taguchi, Yukio Mashino