Patents by Inventor Masamichi Choh

Masamichi Choh 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).

  • Method of tracing/recording image lines and apparatus therefor
    Patent number: 4561061
    Abstract: An apparatus for tracing and recording image lines includes a coordinate reader which detects coordinate values of an image to be traced; an image sensor which is movable in a plane relative to a table; a memory in which image signals detected by means of the sensor are written; and a central processing unit which controls the above elements of the apparatus. Trace data are obtained by means of the coordinate reader which detects coordinate values of the image lines. Then, the image is positioned on the table, where record data are obtained based on the trace data by means of the image sensor which generates image signals corresponding exactly to the image.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: December 24, 1985
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Takashi Sakamoto, Tetsuo Sano, Eiji Kodama, Masamichi Choh