Patents by Inventor Syuiti Fujikura

Syuiti Fujikura 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: 5983041
    Abstract: An image recording apparatus includes a rotating photosensitive drum, a developing unit, a neutralizing device, and a transferring device. An electrostatic latent image is formed on a charged surface of the rotating photosensitive drum, the electrostatic latent image being developed by a developing unit and subsequently transferred by a transferring device to a print medium. The neutralizing device neutralizes the charged surface of the photosensitive drum at the point on the surface disposed downstream of the developing unit and upstream of the transferring device with respect to rotation of the photosensitive drum. A controller controls the neutralizing device according to characteristics of the print medium such as size, material, insulation, and transparency. The neutralizing device may be operated in different modes. For example, the neutralizing device may neutralize an entirety of the charged surface of the photosensitive drum only if the print medium is of a predetermined characteristic, i.e.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: November 9, 1999
    Assignee: Oki Data Corporation
    Inventors: Noboru Otaki, Yoshitatsu Okiyama, Shinichi Murakami, Masato Sakai, Koji Ida, Shuichiro Ogata, Hiroyuki Inoue, Syuiti Fujikura
  • Patent number: 5909536
    Abstract: The resolution of a dot image is converted by converting each input line of dots to a fixed number of output lines of dots. In each output line, different input dots give rise to different numbers of output dots. Within the fixed number of output lines generated from each input line, each input dot gives rise to different numbers of output dots in different output lines, but every input dot gives rise to the same total number of output dots.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: June 1, 1999
    Assignee: Oki Data Corporation
    Inventor: Syuiti Fujikura