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).
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Patent number: 8417177Abstract: 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: GrantFiled: December 9, 2008Date of Patent: April 9, 2013Assignee: Brother Kogyo Kabushiki KaishaInventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
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Patent number: 8306450Abstract: 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: GrantFiled: March 26, 2010Date of Patent: November 6, 2012Assignee: Brother Kogyo Kabushiki KaishaInventors: Shusaku Tsusaka, Eiji Kawahara, Takamasa Tsukada
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Patent number: 8132812Abstract: 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: GrantFiled: May 31, 2006Date of Patent: March 13, 2012Assignee: Brother Kogyo Kabushiki KaishaInventors: Shusaku Tsusaka, Yoshikatsu Kameyama, Junki Ueyama
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Patent number: 8041288Abstract: 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: GrantFiled: December 9, 2008Date of Patent: October 18, 2011Assignee: Brother Kogyo Kabushiki KaishaInventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
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Patent number: 7937019Abstract: 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: GrantFiled: December 24, 2009Date of Patent: May 3, 2011Assignee: Brother Kogyo Kabushiki KaishaInventors: Shusaku Tsusaka, Ryoichi Matsushima
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Patent number: 7917078Abstract: 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: GrantFiled: February 26, 2009Date of Patent: March 29, 2011Assignee: Brother Kogyo Kabushiki KaishaInventors: Shusaku Tsusaka, Yoshiyuki Okazaki, Koichi Kubo, Takeshi Yamanaka
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Publication number: 20100303497Abstract: 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: ApplicationFiled: March 26, 2010Publication date: December 2, 2010Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Shusaku TSUSAKA, Eiji KAWAHARA, Takamasa TSUKADA
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Patent number: 7720409Abstract: 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: GrantFiled: March 20, 2008Date of Patent: May 18, 2010Assignee: Brother Kogyo Kabushiki KaishaInventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
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Publication number: 20100098451Abstract: 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: ApplicationFiled: December 24, 2009Publication date: April 22, 2010Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Shusaku Tsusaka, Ryoichi Matsushima
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Patent number: 7664425Abstract: 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: GrantFiled: August 9, 2005Date of Patent: February 16, 2010Assignee: Brother Kogyo Kabushiki KaishaInventor: Shusaku Tsusaka
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Publication number: 20090220257Abstract: 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: ApplicationFiled: February 26, 2009Publication date: September 3, 2009Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Shusaku TSUSAKA, Yoshiyuki OKAZAKI, Koichi KUBO, Takeshi YAMANAKA
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Patent number: 7526226Abstract: 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: GrantFiled: March 28, 2005Date of Patent: April 28, 2009Assignee: Brother Kogyo Kabushiki KaishaInventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
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Publication number: 20090097894Abstract: 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: ApplicationFiled: December 9, 2008Publication date: April 16, 2009Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
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Publication number: 20080175637Abstract: 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: ApplicationFiled: March 20, 2008Publication date: July 24, 2008Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Sakae Ito, Shusaku Tsusaka, Yasuo Tamaru, Tomitake Aratachi, Terumasa Ito
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Patent number: 7242874Abstract: 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: GrantFiled: March 25, 2005Date of Patent: July 10, 2007Assignee: Brother Kogyo Kabushiki KaishaInventor: Shusaku Tsusaka
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Patent number: 7162184Abstract: 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: GrantFiled: June 2, 2004Date of Patent: January 9, 2007Assignee: Brother Kogyo Kabushiki KaishaInventor: Shusaku Tsusaka
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Publication number: 20070000966Abstract: 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: ApplicationFiled: May 31, 2006Publication date: January 4, 2007Inventors: Shusaku Tsusaka, Yoshikatsu Kameyama, Junki Ueyama
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Patent number: 7116926Abstract: 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: GrantFiled: June 17, 2004Date of Patent: October 3, 2006Assignee: Brother Kogyo Kabushiki KaishaInventor: Shusaku Tsusaka
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Publication number: 20060034633Abstract: 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: ApplicationFiled: August 9, 2005Publication date: February 16, 2006Applicant: Brother Kogyo Kabushiki KaishaInventors: Shusaku Tsusaka, Ryoichi Matsushima
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Patent number: 6975814Abstract: 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: GrantFiled: September 10, 2003Date of Patent: December 13, 2005Assignee: Brother Kogyo Kabushiki KaishaInventors: Shusaku Tsusaka, Sakae Ito