Patents by Inventor Hisahide Yushita

Hisahide Yushita 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 for a copier
    Patent number: 5310170
    Abstract: A recycling automatic document feeder (RADF) for a copier or similar image forming apparatus and capable of preventing curled or otherwise deformed documents from being damaged when such documents are recirculated. The RADF includes a parting plate for separating part of a stack of documents not undergone illumination from the other part undergone illumination and returned to the stack. When the parting plate is raised to a level above a predetermined height, the RADF is inhibited from returning the illuminated documents to the stack.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: May 10, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Hisahide Yushita, Mitsuhiro Nonaka