Patents by Inventor Seiji Tsuchiko

Seiji Tsuchiko 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).

  • Image scanning and processing apparatus with error checking
    Patent number: 5347372
    Abstract: An image scanner for reading a document optically with a CCD image sensor or similar line image sensor, and electrically processing, e.g., amplifying and digitizing the resulting image signal. When an error occurs in the scanner, it can be located easily and rapidly.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: September 13, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Takahashi, Wataru Nara, Yasushi Kamo, Toshiyuki Aihara, Seiji Tsuchiko