Patents by Inventor Yoshihito Takakuwa

Yoshihito Takakuwa 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 have a cover and a pressing mechanism for pressing a developing cartridge when closing the cover
    Patent number: 8396392
    Abstract: An image forming apparatus includes a main body; a process unit configured to be attached to and removed from the main body, the process unit being configured to integrally hold a plurality of image carriers arranged in a first direction; a plurality of developing cartridges provided in corresponding association with the image carriers, the developing cartridges configured to be attached to and removed from the process unit, each of the developing cartridges including a corresponding developer carrier, each of the developing cartridges being configured to supply developer to a corresponding image carrier; and a pressing mechanism provided in the main body, the pressing mechanism configured to press the developing cartridges, when attached to the process unit, in a direction that the developer carriers contact the image carriers.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: March 12, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Takakuwa, Yoshiya Tomatsu, Atsushi Hayakawa
  • PRESSING MECHANISM FOR A DEVELOPING CARTRIDGE
    Publication number: 20120107014
    Abstract: An image forming apparatus includes a main body; a process unit configured to be attached to and removed from the main body, the process unit being configured to integrally hold a plurality of image carriers arranged in a first direction; a plurality of developing cartridges provided in corresponding association with the image carriers, the developing cartridges configured to be attached to and removed from the process unit, each of the developing cartridges including a corresponding developer carrier, each of the developing cartridges being configured to supply developer to a corresponding image carrier; and a pressing mechanism provided in the main body, the pressing mechanism configured to press the developing cartridges, when attached to the process unit, in a direction that the developer carriers contact the image carriers.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 3, 2012
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihito TAKAKUWA, Yoshiya TOMATSU, Atsushi HAYAKAWA
  • Pressing mechanism for a developing cartridge
    Patent number: 8099018
    Abstract: An image forming apparatus includes a main body; a process unit configured to be attached to and removed from the main body, the process unit being configured to integrally hold a plurality of image carriers arranged in a first direction; a plurality of developing cartridges provided in corresponding association with the image carriers, the developing cartridges configured to be attached to and removed from the process unit, each of the developing cartridges including a corresponding developer carrier, each of the developing cartridges being configured to supply developer to a corresponding image carrier; and a pressing mechanism provided in the main body, the pressing mechanism configured to press the developing cartridges, when attached to the process unit, in a direction that the developer carriers contact the image carriers.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: January 17, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Takakuwa, Yoshiya Tomatsu, Atsushi Hayakawa
  • Image forming apparatus, process unit and developing cartridge
    Publication number: 20070077086
    Abstract: An image forming apparatus includes a main body; a process unit configured to be attached to and removed from the main body, the process unit being configured to integrally hold a plurality of image carriers arranged in a first direction; a plurality of developing cartridges provided in corresponding association with the image carriers, the developing cartridges configured to be attached to and removed from the process unit, each of the developing cartridges including a corresponding developer carrier, each of the developing cartridges being configured to supply developer to a corresponding image carrier; and a pressing mechanism provided in the main body, the pressing mechanism configured to press the developing cartridges, when attached to the process unit, in a direction that the developer carriers contact the image carriers.
    Type: Application
    Filed: September 25, 2006
    Publication date: April 5, 2007
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Takakuwa, Yoshiya Tomatsu, Atsushi Hayakawa