Patents by Inventor Yasuhiro Nakahara
Yasuhiro Nakahara 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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Publication number: 20230406010Abstract: A sheet processing apparatus to process a sheet includes a first conveyance path, a punching unit, a storage unit, a movement unit, and a receiving unit. The punching unit punches the sheet conveyed in the first conveyance path. The storage unit is removable from the sheet processing apparatus and stores punch chips generated by the punching unit. The movement unit moves together with the punching unit in a direction parallel to a movement direction of the punching unit. The receiving unit is between the movement unit and the storage unit and receives the punch chips from the punching unit via the movement unit while supporting the movement unit. When the storage unit is removed in a state in which punch chips stored in the storage unit have accumulated to reach the receiving unit, some of the punch chips that have reached the receiving unit are leveled by the receiving unit.Type: ApplicationFiled: June 12, 2023Publication date: December 21, 2023Inventors: YASUHIRO NAKAHARA, NAOYUKI MAEDA, HIDEKI OHTA, JUN AGATA
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Patent number: 11796955Abstract: A processing apparatus processing on a sheet includes a punch unit configured to punch a sheet at a punching position while rotating, a first motor configured to drive the punch unit, a first rotary member disposed upstream of the punch unit in a conveyance direction of the sheet and configured to convey the sheet, a second motor configured to drive the first rotary member, a control unit configured to control driving of the first motor and the second motor, and a first detection unit configured to detect a surface speed of the first rotary member. The control unit is configured to adjust a rotation speed of the second motor so that a surface speed of the first rotary member obtained based on a detection result of the first detection unit substantially matches a tangential component of a rotation speed of the punch unit at the punching position.Type: GrantFiled: February 23, 2022Date of Patent: October 24, 2023Assignee: Canon Kabushiki KaishaInventors: Noriyuki Monden, Takahiro Endo, Yasuhiro Nakahara
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Patent number: 11787658Abstract: A sheet processing apparatus comprising: a conveying unit configured to have a roller that conveys a sheet in a conveyance direction; a first detecting device disposed downstream of the conveying unit in the conveyance direction; a second detecting device disposed downstream of the first detecting device in the conveyance direction; a boring unit configured to have a punch that performs boring in the sheet; and a control unit is used. The first detecting device and the second detecting device each detect passage of a leading edge of the sheet being conveyed. The control unit calculates an actual conveyance speed of the sheet on the basis of detection results of the first detecting device and the second detecting device, and controls rotation of the roller, on the basis of the actual conveyance speed, so that the sheet is conveyed at a predetermined target speed.Type: GrantFiled: April 4, 2022Date of Patent: October 17, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Yasuhiro Nakahara, Noriyuki Monden, Takahiro Endo
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Patent number: 11718496Abstract: A sheet processing apparatus includes a conveyance portion, a punching portion, a moving portion, a first detecting portion, and a control unit configured to control the conveyance portion, the punching portion and the moving portion, wherein the control unit is configured, for a target position of each of a plurality of holes to be formed to a single sheet, to cause the first detecting portion to execute a detection process, and to execute a moving process of moving the moving portion based on the output value of the first detecting portion corresponding to the target position and a punching process of performing punching to the target position of the sheet by the punching portion after the moving process has been completed.Type: GrantFiled: February 14, 2022Date of Patent: August 8, 2023Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Nakahara
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Patent number: 11662683Abstract: A sheet processing apparatus includes a conveyance unit configured to convey a sheet, a stacking portion on which the sheet conveyed by the conveyance unit is stacked, a first regulation member configured to regulate a position of an edge portion, in a conveyance direction, of the sheet stacked on the stacking portion, a second regulation member configured to regulate a position of an edge portion, in a width direction orthogonal to the conveyance direction, of the sheet stacked on the stacking portion, a binding unit supported movably in the conveyance direction and configured to perform a binding process of binding the sheet stacked on the stacking portion, and a moving unit configured to move the second regulation member in the conveyance direction accompanied with a movement, in the conveyance direction, of the binding unit.Type: GrantFiled: November 24, 2021Date of Patent: May 30, 2023Assignee: Canon Kabushiki KaishaInventors: Tomooku Koyama, Jun Agata, Yasuhiro Nakahara, Hiroharu Tsuji
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Publication number: 20230150789Abstract: A sheet processing apparatus includes a conveyance unit configured to convey a sheet in a sheet conveyance direction, a punching unit configured to punch a hole to the sheet being conveyed by the conveyance unit, a moving unit configured to move the punching unit in an intersecting direction intersecting the sheet conveyance direction, a detection unit arranged upstream of the punching unit in the sheet conveyance direction and configured to change an output value based on a position of an edge portion, in the intersecting direction, of the sheet being conveyed, a cleaning portion configured to clean the detection unit, and an interlocking portion configured to move the cleaning portion so as to clean the detection unit by interlocking with a movement of the punching unit in the intersecting direction.Type: ApplicationFiled: October 28, 2022Publication date: May 18, 2023Inventors: Ryuhei Shoji, Yasuhiro Nakahara
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Publication number: 20220348432Abstract: A sheet processing apparatus includes a first conveyance rotary member, a second conveyance rotary member, a punch member, a sensor, a punch motor, a conveyance motor, a first drive transmission portion including a first number of drive transmission members configured to sequentially transmit driving force of the conveyance motor to the first conveyance rotary member, and a second drive transmission portion including a second number of drive transmission members configured to sequentially transmit driving force of the conveyance motor to the second conveyance rotary member, the second number being larger than the first number.Type: ApplicationFiled: April 20, 2022Publication date: November 3, 2022Inventors: Takao Izaki, Jun Agata, Yasuhiro Nakahara
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Publication number: 20220332536Abstract: A sheet processing apparatus comprising: a conveying unit configured to have a roller that conveys a sheet in a conveyance direction; a first detecting device disposed downstream of the conveying unit in the conveyance direction; a second detecting device disposed downstream of the first detecting device in the conveyance direction; a boring unit configured to have a punch that performs boring in the sheet; and a control unit is used. The first detecting device and the second detecting device each detect passage of a leading edge of the sheet being conveyed. The control unit calculates an actual conveyance speed of the sheet on the basis of detection results of the first detecting device and the second detecting device, and controls rotation of the roller, on the basis of the actual conveyance speed, so that the sheet is conveyed at a predetermined target speed.Type: ApplicationFiled: April 4, 2022Publication date: October 20, 2022Inventors: Yasuhiro Nakahara, Noriyuki Monden, Takahiro Endo
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Publication number: 20220283534Abstract: A processing apparatus processing on a sheet includes a punch unit configured to punch a sheet at a punching position while rotating, a first motor configured to drive the punch unit, a first rotary member disposed upstream of the punch unit in a conveyance direction of the sheet and configured to convey the sheet, a second motor configured to drive the first rotary member, a control unit configured to control driving of the first motor and the second motor, and a first detection unit configured to detect a surface speed of the first rotary member. The control unit is configured to adjust a rotation speed of the second motor so that a surface speed of the first rotary member obtained based on a detection result of the first detection unit substantially matches a tangential component of a rotation speed of the punch unit at the punching position.Type: ApplicationFiled: February 23, 2022Publication date: September 8, 2022Inventors: Noriyuki Monden, Takahiro Endo, Yasuhiro Nakahara
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Publication number: 20220162034Abstract: A sheet processing apparatus includes a conveyance portion, a punching portion, a moving portion, a first detecting portion, and a control unit configured to control the conveyance portion, the punching portion and the moving portion, wherein the control unit is configured, for a target position of each of a plurality of holes to be formed to a single sheet, to cause the first detecting portion to execute a detection process, and to execute a moving process of moving the moving portion based on the output value of the first detecting portion corresponding to the target position and a punching process of performing punching to the target position of the sheet by the punching portion after the moving process has been completed.Type: ApplicationFiled: February 14, 2022Publication date: May 26, 2022Inventor: Yasuhiro Nakahara
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Patent number: 11279586Abstract: A sheet processing apparatus includes a conveyance portion, a punching portion, a moving portion, a first detecting portion, and a control unit configured to control the conveyance portion, the punching portion and the moving portion, wherein the control unit is configured, for a target position of each of a plurality of holes to be formed to a single sheet, to cause the first detecting portion to execute a detection process, and to execute a moving process of moving the moving portion based on the output value of the first detecting portion corresponding to the target position and a punching process of performing punching to the target position of the sheet by the punching portion after the moving process has been completed.Type: GrantFiled: October 6, 2020Date of Patent: March 22, 2022Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Nakahara
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Publication number: 20220082981Abstract: A sheet processing apparatus includes a conveyance unit configured to convey a sheet, a stacking portion on which the sheet conveyed by the conveyance unit is stacked, a first regulation member configured to regulate a position of an edge portion, in a conveyance direction, of the sheet stacked on the stacking portion, a second regulation member configured to regulate a position of an edge portion, in a width direction orthogonal to the conveyance direction, of the sheet stacked on the stacking portion, a binding unit supported movably in the conveyance direction and configured to perform a binding process of binding the sheet stacked on the stacking portion, and a moving unit configured to move the second regulation member in the conveyance direction accompanied with a movement, in the conveyance direction, of the binding unit.Type: ApplicationFiled: November 24, 2021Publication date: March 17, 2022Inventors: Tomooku Koyama, Jun Agata, Yasuhiro Nakahara, Hiroharu Tsuji
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Patent number: 11215946Abstract: A sheet processing apparatus includes a conveyance unit configured to convey a sheet, a stacking portion on which the sheet conveyed by the conveyance unit is stacked, a first regulation member configured to regulate a position of an edge portion, in a conveyance direction, of the sheet stacked on the stacking portion, a second regulation member configured to regulate a position of an edge portion, in a width direction orthogonal to the conveyance direction, of the sheet stacked on the stacking portion, a binding unit supported movably in the conveyance direction and configured to perform a binding process of binding the sheet stacked on the stacking portion, and a moving unit configured to move the second regulation member in the conveyance direction accompanied with a movement, in the conveyance direction, of the binding unit.Type: GrantFiled: June 2, 2020Date of Patent: January 4, 2022Assignee: Canon Kabushiki KaishaInventors: Tomooku Koyama, Jun Agata, Yasuhiro Nakahara, Hiroharu Tsuji
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Patent number: 11198581Abstract: A sheet processing apparatus includes a conveyance member to convey a sheet, a pair of alignment members to move relatively in a width direction orthogonal to a conveyance direction of the sheet by the conveyance member, so as to align a position of the sheet in the width direction, and a lower portion to support a lower surface of the sheet between the pair of alignment members in the width direction. In addition, a pair of upper portions are arranged on one side and the other side of the lower portion in the width direction and each hold an upper surface of the sheet, wherein the pair of upper portions is positioned lower than the lower portion in a plane vertical to the conveyance direction.Type: GrantFiled: June 18, 2019Date of Patent: December 14, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Yuichiro Okawa, Yasuhiro Nakahara, Masayoshi Fukatsu, Naoyuki Maeda
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Publication number: 20210107759Abstract: A sheet processing apparatus includes a conveyance portion, a punching portion, a moving portion, a first detecting portion, and a control unit configured to control the conveyance portion, the punching portion and the moving portion, wherein the control unit is configured, for a target position of each of a plurality of holes to be formed to a single sheet, to cause the first detecting portion to execute a detection process, and to execute a moving process of moving the moving portion based on the output value of the first detecting portion corresponding to the target position and a punching process of performing punching to the target position of the sheet by the punching portion after the moving process has been completed.Type: ApplicationFiled: October 6, 2020Publication date: April 15, 2021Inventor: Yasuhiro Nakahara
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Publication number: 20200387101Abstract: A sheet processing apparatus includes a conveyance unit configured to convey a sheet, a stacking portion on which the sheet conveyed by the conveyance unit is stacked, a first regulation member configured to regulate a position of an edge portion, in a conveyance direction, of the sheet stacked on the stacking portion, a second regulation member configured to regulate a position of an edge portion, in a width direction orthogonal to the conveyance direction, of the sheet stacked on the stacking portion, a binding unit supported movably in the conveyance direction and configured to perform a binding process of binding the sheet stacked on the stacking portion, and a moving unit configured to move the second regulation member in the conveyance direction accompanied with a movement, in the conveyance direction, of the binding unit.Type: ApplicationFiled: June 2, 2020Publication date: December 10, 2020Inventors: Tomooku Koyama, Jun Agata, Yasuhiro Nakahara, Hiroharu Tsuji
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Publication number: 20190300321Abstract: A sheet processing apparatus includes a first and second alignment members that moves relatively in a width direction to align a position of a sheet in the width direction. Each alignment member includes a contact surface configured to come in contact with an end of the sheet in the width direction, a lower portion configured to support a lower surface of the sheet, and an upper portion facing an upper surface of the sheet. For each of the first and second alignment members, the lower portion is more distant from the contact surface than the upper portion in the width direction, the lower portion is positioned above a lower end of the contact surface in a gravity direction, and a distance between the upper portion and the lower portion in the gravity direction is smaller than a length of the contact surface in the gravity direction.Type: ApplicationFiled: June 18, 2019Publication date: October 3, 2019Inventors: Yuichiro Okawa, Yasuhiro Nakahara, Masayoshi Fukatsu, Naoyuki Maeda
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Patent number: 10421628Abstract: A sheet conveyance apparatus includes a receiving conveyance path branching into a first conveyance path and a second conveyance path. A guide member guides a sheet passing through the receiving conveyance path and is movable between a first position to guide the sheet toward the first conveyance path and a second position to guide the sheet toward the second conveyance path. A rotary member is disposed on the receiving conveyance path and configured to guide the sheet by rotating in contact with the sheet. The rotary member guides the sheet on the same side as the guide member that is on the first position, while guiding the sheet on the opposite side from the guide member that is on the second position. The sheet is conveyed in contact with both the rotary member and the guide member when the guide member is at the first position.Type: GrantFiled: September 8, 2017Date of Patent: September 24, 2019Assignee: CANON KABUSHIKI KAISHAInventor: Yasuhiro Nakahara
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Patent number: 10358312Abstract: A sheet processing apparatus includes a conveyance member configured to convey a sheet, and an alignment portion having a first alignment member and a second alignment member and configured to move relative positions of the first and second alignment members in a width direction orthogonal to a conveyance direction of the sheet by the conveyance member. Each alignment member includes a contact surface coming in contact with one end of the sheet in the width direction, a lower surface facing a lower surface of the sheet that is in contact with the contact surface, a lower portion supporting the lower surface of the sheet that is in contact with the contact surface, and an upper portion facing an upper surface of the sheet that is in contact with the contact surface.Type: GrantFiled: October 16, 2017Date of Patent: July 23, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Yuichiro Okawa, Yasuhiro Nakahara, Masayoshi Fukatsu, Naoyuki Maeda
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Publication number: 20180111782Abstract: A sheet processing apparatus includes a first and second alignment members that moves relatively in a width direction to align a position of a sheet in the width direction. Each alignment member includes a contact surface configured to come in contact with an end of the sheet in the width direction, a lower portion configured to support a lower surface of the sheet, and an upper portion facing an upper surface of the sheet. For each of the first and second alignment members, the lower portion is more distant from the contact surface than the upper portion in the width direction, the lower portion is positioned above a lower end of the contact surface in a gravity direction, and a distance between the upper portion and the lower portion in the gravity direction is smaller than a length of the contact surface in the gravity direction.Type: ApplicationFiled: October 16, 2017Publication date: April 26, 2018Inventors: Yuichiro Okawa, Yasuhiro Nakahara, Masayoshi Fukatsu, Naoyuki Maeda