Patents by Inventor Shirika Saitoh

Shirika Saitoh 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).

  • Intermediate transfer belt and image forming apparatus
    Patent number: 7463856
    Abstract: In the intermediate transfer belt of the present invention, a toner image formed on a plurality of photoreceptors is transferred and temporarily retained. The intermediate transfer belt comprises a reinforcing layer to reinforce the intermediate transfer belt and a surface protection layer that is stacked on the reinforcing layer through a middle layer and contacts the photoreceptors. The reinforcing layer and the surface protection layer have a larger value of surface resistance than a value of volume resistance of the whole belt. This makes it possible to prevent electric charge (voltage) from flowing out to rollers and image forming units and put proper electric charge (voltage) on the intermediate transfer belt. Preferably, the values of surface resistance of the reinforcing layer and the surface protection layer are 1×1010 to 1×1014 ?/? and the value of volume resistance of the whole intermediate transfer belt is less than 1×1010 ?·cm.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: December 9, 2008
    Assignee: Kyocera Mita Corporation
    Inventors: Koji Murase, Hidenori Takenaka, Shirika Saitoh, Tomoyuki Oda
  • Intermediate transfer belt and image forming device
    Patent number: 7440721
    Abstract: An intermediate transfer belt for an image forming device includes a laminated body including at least two layers. At least one layer of the laminated body is an elastic layer including cells that are preferably interconnected cells.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: October 21, 2008
    Assignee: Kyocera Mita Corporation
    Inventors: Hidenori Takenaka, Shirika Saitoh, Tomoyuki Oda, Koji Murase
  • INTERMEDIATE TRANSFER BELT AND IMAGE FORMING DEVICE
    Publication number: 20060222422
    Abstract: An intermediate transfer belt for an image forming device comprises a laminated body including at least two layers. At least one layer of the laminated body is an elastic layer including cells that are preferably interconnected cells.
    Type: Application
    Filed: March 23, 2006
    Publication date: October 5, 2006
    Applicant: KYOCERA MITA CORPORATION
    Inventors: Hidenori TAKENAKA, Shirika SAITOH, Tomoyuki ODA, Koji MURASE
  • Intermediate transfer belt and image forming apparatus
    Publication number: 20060204289
    Abstract: In the intermediate transfer belt of the present invention, a toner image formed on a plurality of photoreceptors is transferred and temporarily retained. The intermediate transfer belt comprises a reinforcing layer to reinforce the intermediate transfer belt and a surface protection layer that is stacked on the reinforcing layer through a middle layer and contacts the photoreceptors. The reinforcing layer and the surface protection layer have a larger value of surface resistance than a value of volume resistance of the whole belt. This makes it possible to prevent electric charge (voltage) from flowing out to rollers and image forming units and put proper electric charge (voltage) on the intermediate transfer belt. Preferably, the values of surface resistance of the reinforcing layer and the surface protection layer are 1×1010 to 1×1014 ?/? and the value of volume resistance of the whole intermediate transfer belt is less than 1×1010 ?·cm.
    Type: Application
    Filed: March 7, 2006
    Publication date: September 14, 2006
    Inventors: Koji Murase, Hidenori Takenaka, Shirika Saitoh, Tomoyuki Oda