Patents by Inventor Sirou Saeki

Sirou Saeki 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).

  • Recycling automatic document feeder
    Patent number: 4921236
    Abstract: A recycling automatic document feeder usable with an electronic copier and others includes a reversing section for feeding a document to a glass platen of the copier while turning it over. The document feeder adapts itself to a single-face and a double-face copy mode as well as to a document through type and an optical scan type exposing system.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: May 1, 1990
    Assignee: Ricoh Company, Ltd.
    Inventors: Sirou Saeki, Sunao Ikeda, Hirohisa Otsuka, Nobuyuki Yanagawa