Patents by Inventor Takeru Murofushi

Takeru Murofushi 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 BELT UNIT FOR IMAGE FORMING APPARATUS INCLUDING A STEERING ROLLER TO CORRECT MEANDERING
    Publication number: 20120082473
    Abstract: In the transfer belt unit according to an embodiment of the present invention, rotation of a rear-side detection roller or a front-side detection roller rotated in contact with ribs of a transfer belt is transmitted to a steering roller via a lead screw to tilt the steering roller and control meandering of the transfer belt.
    Type: Application
    Filed: December 8, 2011
    Publication date: April 5, 2012
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuhiro Hara, Takeru Murofushi
  • Transfer belt unit for image forming apparatus including a steering roller to correct meandering
    Patent number: 8095053
    Abstract: In the transfer belt unit according to an embodiment of the present invention, rotation of a rear-side detection roller or a front-side detection roller rotated in contact with ribs of a transfer belt is transmitted to a steering roller via a lead screw to tilt the steering roller and control meandering of the transfer belt.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: January 10, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kazuhiro Hara, Takeru Murofushi
  • TRANSFER BELT UNIT FOR IMAGE FORMING APPARATUS
    Publication number: 20080260424
    Abstract: In the transfer belt unit according to an embodiment of the present invention, rotation of a rear-side detection roller or a front-side detection roller rotated in contact with ribs of a transfer belt is transmitted to a steering roller via a lead screw to tilt the steering roller and control meandering of the transfer belt.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 23, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kazuhiro HARA, Takeru MUROFUSHI
  • Image forming apparatus and process unit
    Patent number: 7292808
    Abstract: An image forming apparatus of the present invention attaches a process unit to a body frame, thereby fits a third coupling into a second coupling of a drive transfer device, forms the Oldham structure, absorbs a shift between axial centers of a belt side shaft and a belt drive shaft, and always presses the second coupling toward the third coupling by a coil spring, absorbs a shift in the parallel direction with a belt side shaft 32a, thereby surely fits the third coupling into the second coupling, even if the axial center of the belt side shaft is shifted from the axial center of the belt drive shaft due to distortion of the unit, rotates stably the transfer belt, causes no distortion to a transfer image, and obtains high color superimposition precision.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: November 6, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Takeru Murofushi
  • Image forming apparatus and process unit
    Publication number: 20070019990
    Abstract: An image forming apparatus of the present invention attaches a process unit to a body frame, thereby fits a third coupling into a second coupling of a drive transfer device, forms the Oldham structure, absorbs a shift between axial centers of a belt side shaft and a belt drive shaft, and always presses the second coupling toward the third coupling by a coil spring, absorbs a shift in the parallel direction with a belt side shaft 32a, thereby surely fits the third coupling into the second coupling, even if the axial center of the belt side shaft is shifted from the axial center of the belt drive shaft due to distortion of the unit, rotates stably the transfer belt, causes no distortion to a transfer image, and obtains high color superimposition precision.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventor: Takeru Murofushi