Patents by Inventor Shusaku Tsusaka

Shusaku Tsusaka 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: 8417177
    Abstract: In a printer, a scanner unit is formed into a taper shape having a thinner thickness on a side of a pick-up roller in a removing direction of a process unit, to allow the process unit to be removed from the printer. A part of a sheet feeding path is formed in an area between the process unit and a sheet cassette. An image forming position on the sheet feed path is set lower than an upper end of the pick-up roller. Thus, removal of the process unit can be readily performed. Further, the height of the printer at a position of the pick-up roller can be reduced as compared with a case where the scanner unit is not formed into a taper shape.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: April 9, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
  • Patent number: 8306450
    Abstract: A toner recovery machine comprising: a first roller having a radius and rotatable about a first axis, the first axis along a first direction; a cleaner touching the first roller; a container for accommodating toner, the container comprising: a first conveyer movable along a second direction perpendicular to the first direction; and a second conveyer rotatable about a second axis and having a radius defined by the rotation about the second axis, the second axis along the first direction, wherein the second conveyer, the first roller, and the first conveyer are positioned in this order along the second direction, wherein the sum of the radius of the first roller and the radius defined by the second conveyer is smaller than a distance in the second direction between the first axis and the second axis.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 6, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shusaku Tsusaka, Eiji Kawahara, Takamasa Tsukada
  • Patent number: 8132812
    Abstract: A sheet discharging device that includes: a discharge roller that discharges a transported sheet to outside the sheet discharging device, the discharge roller being integrally formed with a flexible rotating shaft; first and second bearing members that rotatably hold one end side and another end side of the rotating shaft, respectively; a nipping member that nips the transported sheet in cooperation with the discharge roller, the nipping member being opposed to a peripheral surface of the discharge roller; and an abutment member abutting against one of the rotating shaft and the nipping member between the first bearing member and the second bearing member to curve the rotating shaft.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: March 13, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shusaku Tsusaka, Yoshikatsu Kameyama, Junki Ueyama
  • Patent number: 8041288
    Abstract: In a printer, a scanner unit is formed into a taper shape having a thinner thickness on a side of a pick-up roller in a removing direction of a process unit, to allow the process unit to be removed from the printer. A part of a sheet feeding path is formed in an area between the process unit and a sheet cassette. An image forming position on the sheet feed path is set lower than an upper end of the pick-up roller. Thus, removal of the process unit can be readily performed. Further, the height of the printer at a position of the pick-up roller can be reduced as compared with a case where the scanner unit is not formed into a taper shape.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: October 18, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
  • Patent number: 7937019
    Abstract: A high-voltage circuit board and a main circuit board are arranged on the outer side surface of a left frame, and a conveyance path is provided so as to downwardly incline from a feed position near the uppermost part of the outer peripheral surface of a paper feed roller, toward an image formation position. Thus, the height position of an image forming section within a body casing can be lowered. As a result, the height of a laser printer can be made lower.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: May 3, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shusaku Tsusaka, Ryoichi Matsushima
  • Patent number: 7917078
    Abstract: A waste collecting device includes a first box including a top surface having a first opening, a bottom surface opposed to the top surface, and side surfaces connecting the top surface and the bottom surface and having a second opening, wherein the top surface, the bottom surface, and the side surfaces define a space allowing waste to be accommodated therein; a second box including a top surface, a bottom surface opposed to the top surface, and side surfaces connecting the top surface and the bottom surface and having a third opening, the third opening being in communication with the second opening; and a sending unit disposed in the first box and configured to send the waste in a direction away from the second box.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: March 29, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shusaku Tsusaka, Yoshiyuki Okazaki, Koichi Kubo, Takeshi Yamanaka
  • Publication number: 20100303497
    Abstract: A toner recovery machine comprising: a first roller having a radius and rotatable about a first axis, the first axis along a first direction; a cleaner touching the first roller; a container for accommodating toner, the container comprising: a first conveyer movable along a second direction perpendicular to the first direction; and a second conveyer rotatable about a second axis and having a radius defined by the rotation about the second axis, the second axis along the first direction, wherein the second conveyer, the first roller, and the first conveyer are positioned in this order along the second direction, wherein the sum of the radius of the first roller and the radius defined by the second conveyer is smaller than a distance in the second direction between the first axis and the second axis.
    Type: Application
    Filed: March 26, 2010
    Publication date: December 2, 2010
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shusaku TSUSAKA, Eiji KAWAHARA, Takamasa TSUKADA
  • Patent number: 7720409
    Abstract: In a printer, a scanner unit is formed into a taper shape having a thinner thickness on a side of a pick-up roller in a removing direction of a process unit, to allow the process unit to be removed from the printer. A part of a sheet feeding path is formed in an area between the process unit and a sheet cassette. An image forming position on the sheet feed path is set lower than an upper end of the pick-up roller. Thus, removal of the process unit can be readily performed. Further, the height of the printer at a position of the pick-up roller can be reduced as compared with a case where the scanner unit is not formed into a taper shape.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: May 18, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
  • Publication number: 20100098451
    Abstract: A high-voltage circuit board and a main circuit board are arranged on the outer side surface of a left frame, and a conveyance path is provided so as to downwardly incline from a feed position near the uppermost part of the outer peripheral surface of a paper feed roller, toward an image formation position. Thus, the height position of an image forming section within a body casing can be lowered. As a result, the height of a laser printer can be made lower.
    Type: Application
    Filed: December 24, 2009
    Publication date: April 22, 2010
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shusaku Tsusaka, Ryoichi Matsushima
  • Patent number: 7664425
    Abstract: A high-voltage circuit board and a main circuit board are arranged on the outer side surface of a left frame, and a conveyance path is provided so as to downwardly incline from a feed position near the uppermost part of the outer peripheral surface of a paper feed roller, toward an image formation position. Thus, the height position of an image forming section within a body casing can be lowered. As a result, the height of a laser printer can be made lower.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: February 16, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shusaku Tsusaka
  • Publication number: 20090220257
    Abstract: A waste collecting device includes a first box including a top surface having a first opening, a bottom surface opposed to the top surface, and side surfaces connecting the top surface and the bottom surface and having a second opening, wherein the top surface, the bottom surface, and the side surfaces define a space allowing waste to be accommodated therein; a second box including a top surface, a bottom surface opposed to the top surface, and side surfaces connecting the top surface and the bottom surface and having a third opening, the third opening being in communication with the second opening; and a sending unit disposed in the first box and configured to send the waste in a direction away from the second box.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 3, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shusaku TSUSAKA, Yoshiyuki OKAZAKI, Koichi KUBO, Takeshi YAMANAKA
  • Patent number: 7526226
    Abstract: An image forming apparatus includes a main casing; a photosensitive member; a process cartridge that can be installed or removed with respect to the main casing along a removal path; a pick-up roller located above a sheet accommodating portion; and a feed path along which a sheet can be conveyed from the sheet accommodating portion to a discharge port. At least a part of the feed path is substantially parallel to the removal path and located between the sheet accommodating portion and the process cartridge when the process cartridge is installed in the main casing; and an image forming position where an image is transferred from the photosensitive member to the sheet is located along the feed path at a position lower than an upper surface of the pick-up roller in a verticle direction.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: April 28, 2009
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
  • Publication number: 20090097894
    Abstract: In a printer, a scanner unit is formed into a taper shape having a thinner thickness on a side of a pick-up roller in a removing direction of a process unit, to allow the process unit to be removed from the printer. A part of a sheet feeding path is formed in an area between the process unit and a sheet cassette. An image forming position on the sheet feed path is set lower than an upper end of the pick-up roller. Thus, removal of the process unit can be readily performed. Further, the height of the printer at a position of the pick-up roller can be reduced as compared with a case where the scanner unit is not formed into a taper shape.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 16, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
  • Publication number: 20080175637
    Abstract: In a printer, a scanner unit is formed into a taper shape having a thinner thickness on a side of a pick-up roller in a removing direction of a process unit, to allow the process unit to be removed from the printer. A part of a sheet feeding path is formed in an area between the process unit and a sheet cassette. An image forming position on the sheet feed path is set lower than an upper end of the pick-up roller. Thus, removal of the process unit can be readily performed. Further, the height of the printer at a position of the pick-up roller can be reduced as compared with a case where the scanner unit is not formed into a taper shape.
    Type: Application
    Filed: March 20, 2008
    Publication date: July 24, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
  • Patent number: 7242874
    Abstract: An image forming apparatus includes a recording medium accommodating portion that is capable of accommodating a recording medium; a feed path along which the recording medium is capable of being fed from the recording medium accommodating portion; and a detector, disposed on the feed path, capable of detecting (1) a cartridge that is capable of being installed in the image forming apparatus when the cartridge is installed in the image forming apparatus and (2) the recording medium when the recording medium passes through the feed path when the cartridge is installed in the image forming apparatus.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: July 10, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shusaku Tsusaka
  • Patent number: 7162184
    Abstract: A laser printer includes a guide member for guiding a paper. The guide member includes an outer guide and an inner guide, and a top surface of the outer guide serves as a portion of a bottom surface of an accommodating space where a process cartridge is accommodated. If a paper jam occurs in a transport path defined between the outer guide and the inner guide, then a user opens a front cover and removes the process cartridge from the accommodating space. Then, the user grabs and pulls the jammed paper out of the casing. While the paper bends at an acute angle at the end of the guide member, rollers provided at the end of the guide member enable the paper to be pulled out without being torn.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 9, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shusaku Tsusaka
  • Publication number: 20070000966
    Abstract: A sheet discharging device that includes: a discharge roller that discharges a transported sheet to outside the sheet discharging device, the discharge roller being integrally formed with a flexible rotating shaft; first and second bearing members that rotatably hold one end side and another end side of the rotating shaft, respectively; a nipping member that nips the transported sheet in cooperation with the discharge roller, the nipping member being opposed to a peripheral surface of the discharge roller; and an abutment member abutting against one of the rotating shaft and the nipping member between the first bearing member and the second bearing member to curve the rotating shaft.
    Type: Application
    Filed: May 31, 2006
    Publication date: January 4, 2007
    Inventors: Shusaku Tsusaka, Yoshikatsu Kameyama, Junki Ueyama
  • Patent number: 7116926
    Abstract: A dial is provided to a laser printer such that only a portion of the dial is exposed in an accommodating area for accommodating a process cartridge. A user can manually rotate a conveying roller to convey a paper through a conveying path by operating the dial. The dial is disposed coaxial with an auger. The auger operates in association with the conveying roller because of an auger gear being engaged with a conveying gear. A driving force from a driving motor is transmitted to the conveying gear via a planetary gear. When a paper jam occurs, the user operates the dial in order to move the planetary gear, thereby switching the state for communicating the driving force from the drive motor to the conveying roller from a communicating state to a non-communicating state.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: October 3, 2006
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shusaku Tsusaka
  • Publication number: 20060034633
    Abstract: A high-voltage circuit board and a main circuit board are arranged on the outer side surface of a left frame, and a conveyance path is provided so as to downwardly incline from a feed position near the uppermost part of the outer peripheral surface of a paper feed roller, toward an image formation position. Thus, the height position of an image forming section within a body casing can be lowered. As a result, the height of a laser printer can be made lower.
    Type: Application
    Filed: August 9, 2005
    Publication date: February 16, 2006
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Shusaku Tsusaka, Ryoichi Matsushima
  • Patent number: 6975814
    Abstract: An image forming apparatus includes an image forming unit having an image forming portion positioned over a partition wall that vertically partitions a body frame above a cover plate. A second circuit board in which a tall electronic component-mounting side is upward directed is placed in a space between the partition wall and the cover plate. A first circuit board in which an electronic component-mounting side is downward directed is placed on a lateral side of the second circuit board. The first and second circuit boards are placed in a stepwise manner so that the level of the first circuit board is higher than that of the second circuit board. A return path for reversely transporting a sheet is formed between the cover plate and the upper face of a return tray.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: December 13, 2005
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shusaku Tsusaka, Sakae Ito