Patents by Inventor Takehiko Sugawara

Takehiko Sugawara 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).

  • Patent number: 4777496
    Abstract: A thermal printer has a plurality of head elements which are selectively energized for periods of time corresponding to tone levels of image densities. The thermal printer has a mode for recording necessary printing plate making information data such as print positioning marks and color information data or the like outside an effective image area to facilitate preparing block copies.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: October 11, 1988
    Assignee: Sony Corporation
    Inventors: Nobuyuki Maejima, Takehiko Sugawara