Patents by Inventor Yoshiaki Hanyuh

Yoshiaki Hanyuh 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: 5701363
    Abstract: An image processing apparatus is disclosed. The image processing apparatus incorporates an input device which inputs binary image data, a divider which divides the input binary image data into binary text/drawing data and binary photograph/graphics data, a multi-value processor in which the binary text/drawing data is converted to multi-value text/drawing data by a filter which interpolates an edge of an image and the binary photograph/graphics data is converted to multi-value photograph/graphics data by a filter which smooths an image, a mixer which mixes the multi-value text/drawing data and the multi-value photogaph/graphics data together into multi-value data, and an output device which outputs the multi-value data. In accordance with this invention, improved output images can be produced in which, for example, jagged images are reduced and faithful reproductions of an orignal image are achieved.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: December 23, 1997
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshiaki Hanyuh