Patents by Inventor Yoshimasa Fujikawa

Yoshimasa Fujikawa 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).

  • Still image pickup camera using high speed clear pulses to define a storage interval corresponding to a desired shutter speed
    Patent number: 4805024
    Abstract: A still image pickup camera has a solid state image pickup device comprising an image pickup area, a temporary storage area, and a horizontal shift register. The signal charges in the image pickup area are transferred to the temporary storage area by the transfer pulses which are given for a vertical blanking period. Clear pulses which are equivalent to the transfer pulses are given at a desired timing in the interval between the vertical sync signals so as to enable the photo sensing interval (storage interval) in the image pickup area to be reduced and varied, thereby transferring the signal charges in the image pickup area to the temporary storage area and clearing the image pickup area.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: February 14, 1989
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Masatoshi Suzuki, Yoshimasa Fujikawa, Koichi Fujimoto