Patents by Inventor Kazunori Yakame

Kazunori Yakame 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).

  • Halftone dot generator using grained screen patterns
    Patent number: 4930023
    Abstract: A plurality of grained screen patterns that are different from each other are previously stored in a grained screen pattern memory. The grained screen patterns are accessed at random in response to an address signal (AGP) generated in a random number generator. An original image data is compared with the random arrangement of the grained screen patterns for each pixel, to produce a halftone dot image. The halftone dot image thus obtained has no periodic distribution of density, such as a moire.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: May 29, 1990
    Assignee: Dainippon Screen Mfg. Co. Ltd.
    Inventor: Kazunori Yakame