Patents by Inventor Shigeyuki Taguchi

Shigeyuki Taguchi 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).

  • Dot density conversion method and system
    Patent number: 5493420
    Abstract: When dot density conversion processing of page data is effected by managing the position, size and data kind of each area for the page data including the portions which are formed as the data of different areas for at least two kinds of data of a plurality of data kinds each having at least one kind such as text data, graphic data, image data, and so forth, dot conversion means disposed for each area in such a manner as to correspond to each data kind is selected and conversion is made so that the result of conversion is drawn at a predetermined output position of each area.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: February 20, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Kuwamoto, Tadashi Kuwabara, Shigeyuki Taguchi, Hitoshi Tamura, Keiichi Nakane