Patents by Inventor Tsuyoshi Takuguchi

Tsuyoshi Takuguchi 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 method comprising electrostatic transfer of developed image and corresponding image forming apparatus
    Patent number: 5270770
    Abstract: An image forming method, including the steps of: developing an electrostatic image formed on an electrostatic image-bearing member with a developer to form thereon thereon a developed image, the developer containing 100 wt. parts of a toner and 0.05 to 3 wt. parts of fine powder treated with a silicone oil or silicone varnish; and transferring the developed image on the electrostatic image-bearing member to a transfer material while causing a transfer device, such as a roller or belt, to contact the electrostatic image-bearing member by the medium of the transfer material under a line pressure of 3 g/cm or higher.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: December 14, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takuguchi, Eiichi Imai, Tetsuya Kuribayashi, Hisayuki Ochi, Hiroyuki Suematsu