Patents by Inventor Keisuke Wakakusa
Keisuke Wakakusa 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: 8020849Abstract: An image recording apparatus according to one aspect comprises: a first tray disposed within an opening of a main body to allow a recording medium to be placed thereon; a second tray disposed above the first tray, the second tray having a second end portion located on a side of the opening; a conveying unit; and a recording unit. The second tray is movable between a first posture and a second posture. When the second tray is in the first posture, a top surface of the second tray in the vicinity of the second end portion is positioned at a predetermined height relative to the first tray. When the second tray moves from the first posture to the second posture, the top surface in the vicinity of the second end portion is moved toward the first tray.Type: GrantFiled: February 28, 2008Date of Patent: September 20, 2011Assignee: Brother Kogyo Kabushiki KaishaInventors: Masatoshi Izuchi, Yuji Koga, Keisuke Wakakusa, Kenji Samoto
-
Publication number: 20110074092Abstract: A sheet feeder, including: a holding portion for holding sheets; a sheet supply portion; an inclined member disposed downstream of the holding portion and having an inclined surface for guiding each sheet in a sheet feed direction along the inclined surface; a plurality of first separation protrusions provided on and integrally with the inclined member and arranged in the sheet feed direction, each first separation protrusion protruding from the inclined surface such that its distal end is located more downstream in the sheet feed direction than its proximal end; and a plurality of second separation protrusions formed of a metal, each second separation protrusion protruding from the inclined surface through a corresponding one of openings formed in the inclined member at a position in the sheet feed direction between corresponding adjacent two of the first separation protrusions, the second separation protrusions being arranged in the sheet feed direction.Type: ApplicationFiled: March 22, 2010Publication date: March 31, 2011Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuo ASADA, Keisuke WAKAKUSA
-
Publication number: 20110074093Abstract: A sheet feeder, including; a sheet holding portion; a sheet supply portion; an inclined member having an inclined surface and configured to guide each sheet in a sheet feed direction; and separation protrusions which are provided on the inclined member and each of which protrudes from the inclined surface such that a distal end thereof is located more downstream in the sheet feed direction than a proximal end thereof, wherein each separation protrusion has a contact surface and said each sheet comes into contact with one or more contact surfaces of the separation protrusions, and wherein each separation protrusion protrudes from the inclined surface such that the distal end of one of the separation protrusions is located more downstream in the sheet feed direction than the proximal end of another of the separation protrusions that is located immediately downstream of the one of the separation protrusions in the sheet feed direction.Type: ApplicationFiled: March 22, 2010Publication date: March 31, 2011Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuo ASADA, Keisuke WAKAKUSA
-
Patent number: 7878500Abstract: A sheet storing device includes a container including a first holding surface configured to hold a first sheet thereon, and a tray positioned at an upper side of the container. The tray includes a second holding surface configured to hold a second sheet thereon. The tray is configured to selectively move between a first position and a second position downstream from the first position in a first direction. The sheet storing device further includes a positioning unit configured to selectively position the tray in one of the first position and the second position, and a linking unit configured to link the tray to the container and to pivot about a particular pivot axis which extends in a second direction perpendicular to the first direction and parallel to the first holding surface of the container. The linking unit pivots to selectively move the tray between the first position and the second position.Type: GrantFiled: September 25, 2009Date of Patent: February 1, 2011Assignee: Brother Kogyo Kabushiki KaishaInventor: Keisuke Wakakusa
-
Publication number: 20100244372Abstract: A sheet separation device includes a separation member having a plurality of first separation portions that separate fed sheets one by one, and a turning member having an inclined surface, holes formed therethrough, and a plurality of second separation portions. The inclined surface is positioned to contact the fed sheets and turn a transport direction of the sheets. The plurality of holes are arranged along a first direction that is a transport direction of the sheets. The plurality of second separation portions contact the fed sheets and separate them one by one. Each of the second separation portions is positioned between a corresponding two holes, and each of the first separation portions is positioned to protrude from a corresponding one of the holes.Type: ApplicationFiled: March 22, 2010Publication date: September 30, 2010Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keisuke WAKAKUSA, Kenji SAMOTO
-
Patent number: 7762546Abstract: A sheet conveying device including: (a) a sheet discharger configured to discharge a sheet in a discharging direction; (b) a tray configured to receive the sheet discharged by the sheet discharger; (c) a stopper protruding upwardly from the tray; and (d) a guide provided by an upper surface of the tray and located on an upstream side of the stopper in the discharging direction, and configured to warp the discharged sheet such that the warped sheet has a downwardly convex shape in its cross section that is perpendicular to the discharging direction, for thereby allowing a leading end of the warped sheet to pass over the stopper and to be positioned on a downstream side of the stopper in the discharging direction.Type: GrantFiled: September 25, 2008Date of Patent: July 27, 2010Assignee: Brother Kogyo Kabushiki KaishaInventors: Keisuke Wakakusa, Masatoshi Izuchi
-
Publication number: 20100164169Abstract: A sheet storing device includes a container including a first holding surface configured to hold a first sheet thereon, and a tray positioned at an upper side of the container. The tray includes a second holding surface configured to hold a second sheet thereon. The tray is configured to selectively move between a first position and a second position downstream from the first position in a first direction. The sheet storing device further includes a positioning unit configured to selectively position the tray in one of the first position and the second position, and a linking unit configured to link the tray to the container and to pivot about a particular pivot axis which extends in a second direction perpendicular to the first direction and parallel to the first holding surface of the container. The linking unit pivots to selectively move the tray between the first position and the second position.Type: ApplicationFiled: September 25, 2009Publication date: July 1, 2010Applicant: Brother Kogyo Kabushiki KaishaInventor: Keisuke Wakakusa
-
Patent number: 7731179Abstract: A sheet tray assembly including: (a) a tray unit configured to accommodate sheets, and having an upper opening for allowing the sheets to be introduced into the tray unit via the upper opening; (b) a cover unit configured to cover the upper opening; and (c) a link interconnecting the tray unit and the cover unit, and having (c-1) a first end portion at which the link is connected to the tray unit and (c-2) a second end portion at which the link is connected to a proximal end portion of the cover unit. The link is movable between first and second pivot positions as a result of pivot movement of the link relative to the tray unit, whereby a posture of the link is changeable by the pivot movement, such that the second end portion of the link is placed in a first height level when the link is positioned in the first pivot position, and is placed in a second height level that is higher than the first height level when the link is positioned in the second pivot position.Type: GrantFiled: September 23, 2008Date of Patent: June 8, 2010Assignee: Brother Kogyo Kabushiki KaishaInventors: Masatoshi Izuchi, Keisuke Wakakusa
-
Patent number: 7703763Abstract: A sheet conveying device includes a tray having a bottom surface. The tray holds at least one sheet therein, and has a recess formed in the bottom surface. A rotating member moves between a first position and a second position. In the first position, the rotating member contacts a sheet held in the tray, and in the second position, the rotating member is separated from the tray. The rotating member selectively rotates to convey a sheet held in the tray in a when the rotating member is in the first position. An operative portion moves in and out of the recess in the bottom surface of the tray, and movement of the operative portion corresponds to a movement of the rotating member into the second position.Type: GrantFiled: July 30, 2008Date of Patent: April 27, 2010Assignee: Brother Kogyo Kabushiki KaishaInventors: Yukio Shiohara, Keisuke Wakakusa, Tetsuo Asada
-
Patent number: 7681875Abstract: A supply tray includes a first tray configured to receive a stack of recording medium thereon, and a second tray configured to receive at least one recording medium thereon, which is different in size or type, or both, from the stack of recording medium received on the first tray. The second tray is disposed in an upper portion of the first tray and is slidable within a predetermined direction. The supply tray further includes a locking mechanism configured to place and to fix the second tray in position with respect to the first tray.Type: GrantFiled: February 2, 2007Date of Patent: March 23, 2010Assignee: Brother Kogyo Kabushiki KaishaInventors: Tetsuo Asada, Yukio Shiohara, Keisuke Wakakusa
-
Patent number: 7618035Abstract: One aspect of the invention provides an image recording apparatus including: an image recording unit; a first sheet feeding cassette; a second sheet feeding cassette including a second placing portion and a discharged sheet placing portion disposed an upstream side of a second placing portion with respect to the first direction; a sheet feed unit configured to feed the recording medium; an auxiliary cover member disposed above the second placing portion; and an auxiliary sheet discharging tray disposed below the discharged sheet placing portion. A sheet insertion opening is formed between an upstream end of the cover member and the discharged sheet placing portion and communicates with the second sheet placing portion. The auxiliary sheet discharging tray is movable in a forward direction and a rearward direction opposite to the forward direction, with respect to the sheet insertion opening.Type: GrantFiled: December 26, 2007Date of Patent: November 17, 2009Assignee: Brother Kogyo Kabushiki KaishaInventors: Yuji Koga, Keisuke Wakakusa
-
Publication number: 20090194935Abstract: The invention is directed to a paper feed cassette device to be removably installed to image recording device. The paper feed cassette device includes a paper feed cassette portion and a paper discharge tray portion that receives the recording media. The paper feed cassette portion has a first paper feed cassette portion and a second paper feed cassette portion that selectively contracts and extends by sliding along a particular direction. The paper discharge tray portion has a first paper discharge tray portion disposed above the first paper feed cassette portion and a second paper discharge tray portion that selectively contracts and expands by sliding along the particular direction. The second paper discharge tray portion selectively engages the second paper feed cassette portion, and the second paper feed cassette portion and the second paper discharge tray portion integrally slide with respect to the first paper discharge tray portion.Type: ApplicationFiled: January 28, 2009Publication date: August 6, 2009Applicant: Brother Kogyo Kabushiki KaishaInventors: Keisuke Wakakusa, Masatoshi Izuchi
-
Publication number: 20090085278Abstract: A sheet tray assembly including: (a) a tray unit configured to accommodate sheets, and having an upper opening for allowing the sheets to be introduced into the tray unit via the upper opening; (b) a cover unit configured to cover the upper opening; and (c) a link interconnecting the tray unit and the cover unit, and having (c-1) a first end portion at which the link is connected to the tray unit and (c-2) a second end portion at which the link is connected to a proximal end portion of the cover unit. The link is movable between first and second pivot positions as a result of pivot movement of the link relative to the tray unit, whereby a posture of the link is changeable by the pivot movement, such that the second end portion of the link is placed in a first height level when the link is positioned in the first pivot position, and is placed in a second height level that is higher than the first height level when the link is positioned in the second pivot position.Type: ApplicationFiled: September 23, 2008Publication date: April 2, 2009Applicant: Brother Kogyo Kabushiki KaishaInventors: Masatoshi Izuchi, Keisuke Wakakusa
-
Publication number: 20090085279Abstract: A sheet conveying device including: (a) a sheet discharger configured to discharge a sheet in a discharging direction; (b) a tray configured to receive the sheet discharged by the sheet discharger; (c) a stopper protruding upwardly from the tray; and (d) a guide provided by an upper surface of the tray and located on an upstream side of the stopper in the discharging direction, and configured to warp the discharged sheet such that the warped sheet has a downwardly convex shape in its cross section that is perpendicular to the discharging direction, for thereby allowing a leading end of the warped sheet to pass over the stopper and to be positioned on a downstream side of the stopper in the discharging direction.Type: ApplicationFiled: September 25, 2008Publication date: April 2, 2009Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keisuke WAKAKUSA, Masatoshi IZUCHI
-
Publication number: 20090033024Abstract: A sheet conveying device includes a tray having a bottom surface. The tray holds at least one sheet therein, and has a recess formed in the bottom surface. A rotating member moves between a first position and a second position. In the first position, the rotating member contacts a sheet held in the tray, and in the second position, the rotating member is separated from the tray. The rotating member selectively rotates to convey a sheet held in the tray in a when the rotating member is in the first position. An operative portion moves in and out of the recess in the bottom surface of the tray, and movement of the operative portion corresponds to a movement of the rotating member into the second position.Type: ApplicationFiled: July 30, 2008Publication date: February 5, 2009Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yukio Shiohara, Keisuke Wakakusa, Tetsuo Asada
-
Publication number: 20080237977Abstract: An image recording apparatus according to one aspect comprises: a first tray disposed within an opening of a main body to allow a recording medium to be placed thereon; a second tray disposed above the first tray, the second tray having a second end portion located on a side of the opening; a conveying unit; and a recording unit. The second tray is movable between a first posture and a second posture. When the second tray is in the first posture, a top surface of the second tray in the vicinity of the second end portion is positioned at a predetermined height relative to the first tray. When the second tray moves from the first posture to the second posture, the top surface in the vicinity of the second end portion is moved toward the first tray.Type: ApplicationFiled: February 28, 2008Publication date: October 2, 2008Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Masatoshi Izuchi, Yuji Koga, Keisuke Wakakusa, Kenji Samoto
-
Publication number: 20080150217Abstract: One aspect of the invention provides an image recording apparatus including: an image recording unit; a first sheet feeding cassette; a second sheet feeding cassette including a second placing portion and a discharged sheet placing portion disposed an upstream side of a second placing portion with respect to the first direction; a sheet feed unit configured to feed the recording medium; an auxiliary cover member disposed above the second placing portion; and an auxiliary sheet discharging tray disposed below the discharged sheet placing portion. A sheet insertion opening is formed between an upstream end of the cover member and the discharged sheet placing portion and communicates with the second sheet placing portion. The auxiliary sheet discharging tray is movable in a forward direction and a rearward direction opposite to the forward direction, with respect to the sheet insertion opening.Type: ApplicationFiled: December 26, 2007Publication date: June 26, 2008Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuji Koga, Keisuke Wakakusa
-
Publication number: 20070182803Abstract: A supply tray includes a first tray configured to receive a stack of recording medium thereon, and a second tray configured to receive at least one recording medium thereon, which is different in size or type, or both, from the stack of recording medium received on the first tray. The second tray is disposed in an upper portion of the first tray and is slidable within a predetermined direction. The supply tray further includes a locking mechanism configured to place and to fix the second tray in position with respect to the first tray.Type: ApplicationFiled: February 2, 2007Publication date: August 9, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuo Asada, Yukio Shiohara, Keisuke Wakakusa