Patents by Inventor Shouji Nishitani

Shouji Nishitani 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).

  • Patent number: 5583618
    Abstract: The present invention provides a process cartridge having components which are easy to assemble and disassemble and are convenient to reuse. A process cartridge of the present invention comprises a first unit having a photosensitive drum; a second unit having a cleaning means for the photosensitive drum; and wherein the first unit and the second unit are rotatably hinged to each other by a coupling shaft projecting from the side wall of the first unit and a coupling hole perforating the side wall of the second unit. The second unit is fixed at a position where the hinged rotation of the second unit in a predetermined direction with respect to the first unit is stopped.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 10, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keizou Takeuchi, Noboru Katakabe, Kouzou Ezawa, Shouji Nishitani, Manabu Kitajima, Hiroshi Yasumoto