Patents by Inventor Jun Ishi

Jun Ishi 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).

  • Waste toner collection apparatus and image forming apparatus
    Patent number: 7848667
    Abstract: The waste toner flown into a waste toner box by way of a plurality of collection ports is leveled by means of a paddle. The waste toner collected in the waste toner box is supplied to a full condition sensing section arranged at a higher position so as to be piled up by means of an auxiliary paddle 42. A photodetector detects the waste toner that is accumulated higher at the position of the full condition sensing section than at the other area of the waste toner box to detect a full condition of the waste toner box.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: December 7, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Jun Ishi