Patents by Inventor Naoki Michiwaki

Naoki Michiwaki 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).

  • Transfer device in electrophotography
    Patent number: 6256472
    Abstract: In this transfer device, when a straight line is regarded to be a support axis P connecting a press-contacting point between the first roller and the drum to a press-contacting point between the second roller and the stopper, a moment of the resilient member of the second roller side to the support axis P is larger than the sum of a moment of the resilient member of the first roller side to the support axis P and a moment of the resilient means to the support axis P. Upon adjusting the moments as described above, a stable and reliable contact is maintained at the pair of press-contacting points of the positioning roller to the drum, completely preventing the deviation in the press-contacting points, stably and reliably limiting the gap between the transfer roller and the drum, and, hence, forming an excellently transferred image.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: July 3, 2001
    Assignee: Kyocera Mita Corp.
    Inventors: Takashi Miyake, Naoki Michiwaki