Patents by Inventor Eiichi Sakanaka

Eiichi Sakanaka 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).

  • Electronic printer with interleaved storage of print wheel position, hammer intensity, and carriage position data in read only memory
    Patent number: 4687356
    Abstract: An impact-type electronic printer uses a rotary printing wheel and a ROM to store printing-type position data for dealing with respective printing types borne by the rotary printing wheel, hammer pressure data, and the spacing data respectively matching the designated printing types together with printing-type position data. The main CPU then draws out the printing-type position data, hammer pressure data, and the spacing data in response to the input data to allow the printer to execute the printing operation using the designated printing types in accordance with these data drawn out of the ROM, thus realizing distinctly clean printed characters. The unique system embodied by the present invention makes it possible for the controller to easily read important data from the ROM.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: August 18, 1987
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hirotoshi Matsui, Takeo Tsumura, Eiichi Sakanaka