Patents by Inventor Isamu FUNAYAMA

Isamu FUNAYAMA 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).

  • Paper feeding device and image forming apparatus
    Patent number: 9022379
    Abstract: In the present invention, when a status of clogging a paper due to some cause occurs, controls of inverting a conveyance roller and returning the jammed paper in a paper feeding tray is performed. At this time, the position of a paper damming up member is lowered by an actuator when the jammed paper is returned to the paper feeding tray and the conveyance roller is inverted so as to avoid a state in which the paper damming up member 33 hinders the returning of the paper and the paper cannot be returned to the paper feeding tray. The paper damming up member is lowered to a position that is lower than a conveyance guide plate at a downstream side in a paper conveying direction. Then, the paper is returned to the paper feeding tray without damage. The returned paper can be reused.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 5, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Hideaki Takahashi, Tatsuya Sugawara, Taewon Kim, Shinji Katsumata, Isamu Funayama
  • PAPER FEEDING DEVICE AND IMAGE FORMING APPARATUS
    Publication number: 20140339759
    Abstract: In the present invention, when a status of clogging a paper due to some cause occurs, controls of inverting a conveyance roller and returning the jammed paper in a paper feeding tray is performed. At this time, the position of a paper damming up member is lowered by an actuator when the jammed paper is returned to the paper feeding tray and the conveyance roller is inverted so as to avoid a state in which the paper damming up member 33 hinders the returning of the paper and the paper cannot be returned to the paper feeding tray. The paper damming up member is lowered to a position that is lower than a conveyance guide plate at a downstream side in a paper conveying direction. Then, the paper is returned to the paper feeding tray without damage. The returned paper can be reused.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 20, 2014
    Applicant: Ricoh Company, Limited
    Inventors: Hideaki TAKAHASHI, Tatsuya SUGAWARA, Taewon KIM, Shinji KATSUMATA, Isamu FUNAYAMA