Patents by Inventor Hiroshi Sasame

Hiroshi Sasame 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 processing process and apparatus therefor
    Patent number: 4814886
    Abstract: An image processing process forms a plural microdots for each pixel, and the number of microdots increases only in one direction for representing a higher density, thereby achieving an improved linearity in the density levels without sacrificing the resolving power.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: March 21, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsukasa Kuge, Takahiro Inoue, Yasushi Sato, Akio Suzuki, Yoshihiro Murasawa, Hiroshi Sasame, Jun Asai
  • Image forming apparatus for forming a visual image in accordance with image signals
    Patent number: 4626096
    Abstract: An image forming apparatus is used in conjunction with a signal generator for producing an image signal representing an image to be recorded. The apparatus includes a device for forming a visible image with visible material on an image bearing member. The image is represented by the image signal produced by the signal generator. A time signal is also generated by a time signal generator and a measuring circuit measures the time signal so generated as a function of the production off the image signal by the image signal generator. Finally, a warning signal that indicates insufficiency of supply of the visible material for forming an image properly by the image forming device is produced on the basis of measurement of the time signal by the measuring circuit.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: December 2, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasumasa Ohtsuka, Jun Asai, Yoshihiro Murasawa, Hiroshi Sasame, Masaharu Ohkubo