Patents by Inventor Ippel Fujimoto

Ippel Fujimoto 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).

  • Image forming apparatus, fixing apparatus and toner
    Patent number: 7509085
    Abstract: An image forming apparatus includes an image forming mechanism and a fixing mechanism. The fixing mechanism fixes a visible image formed by the image forming mechanism onto a recording sheet. The fixing mechanism includes a first roller, a second roller, a belt, a third roller, and an applicator. The second roller includes a first heater having a first heat capacity. The belt is looped over the first and second rollers. The third roller is arranged opposite to the first roller via the belt, includes a second heater having a heat capacity smaller than the first heat capacity of the first heater, applies a pressure to the belt and the first roller, and rotates in conjunction with a movement of the first roller via the belt. The applicator is arranged at a position in contact with the third roller and applies oil to a surface of the third roller.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: March 24, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Yoshinaga, Shinichi Namekata, Hiroyuki Shimada, Masanao Ehara, Hirofumi Ogawa, Tadashi Ogawa, Ippel Fujimoto
  • Image forming apparatus, fixing apparatus, toner, and method of preparing toner
    Publication number: 20060165443
    Abstract: An image forming apparatus includes an image forming mechanism and a fixing mechanism. The fixing mechanism fixes a visible image formed by the image forming mechanism onto a recording sheet. The fixing mechanism includes a first roller, a second roller, a belt, a third roller, and an applicator. The second roller includes a first heater having a first heat capacity. The belt is looped over the first and second rollers. The third roller is arranged opposite to the first roller via the belt, includes a second heater having a heat capacity smaller than the first heat capacity of the first heater, applies a pressure to the belt and the first roller, and rotates in conjunction with a movement of the first roller via the belt. The applicator is arranged at a position in contact with the third roller and applies oil to a surface of the third roller.
    Type: Application
    Filed: January 24, 2006
    Publication date: July 27, 2006
    Inventors: Hiroshi Yoshinaga, Shinichi Namekata, Hiroyuki Shimada, Masanao Ehara, Hirofumi Ogawa, Tadashi Ogawa, Ippel Fujimoto