Patents by Inventor Kenjiro Sugaya
Kenjiro Sugaya 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: 9701500Abstract: A sheet conveying apparatus includes a sheet conveying path through which a sheet is conveyed, and a burr pushing portion provided on the sheet conveying path and pushing down a burr, formed at one side edge in a width direction orthogonal to a sheet conveying direction of the sheet, in the width direction. The burr pushing portion includes a contact portion coming into contact with the burrs while inclining with respect to the side edge of the sheet conveyed thereto.Type: GrantFiled: October 7, 2015Date of Patent: July 11, 2017Assignee: Canon Kabushiki KaishaInventors: Kenjiro Sugaya, Osamu Sugino, Hiroki Muramatsu, Masahiro Tsujibayashi, Michiaki Endo, Teppei Nagata, Rikiya Takemasa
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Patent number: 9581952Abstract: A humidification device for humidifying a sheet, comprising a control unit that rotates a water-supply roller in a separate state where the water-supply roller and a humidification roller are separated from each other.Type: GrantFiled: January 21, 2015Date of Patent: February 28, 2017Assignee: Canon Kabushiki KaishaInventors: Kenjiro Sugaya, Kazuhisa Okuda, Koji Takematsu, Shutaro Saito
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Patent number: 9546061Abstract: In order to correct a corrugation caused when a sheet widthwise edge portion elongates more than the vicinity of the center in a sheet feeding direction, a sheet processing apparatus includes: a fixing portion that fixes a toner image onto a sheet by heating, a plurality of pairs of rollers provided along a sheet feeding direction with an interval in the downstream of the fixing portion in the feeding direction to nip and convey a sheet; and a tensioning device that applies a tensile strength of the sheet feeding direction to a sheet in a center area of a width direction perpendicular to the sheet feeding direction.Type: GrantFiled: November 19, 2015Date of Patent: January 17, 2017Assignee: Canon Kabushiki KaishaInventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya, Shutaro Saito
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Patent number: 9335733Abstract: A sheet conveying apparatus which conveys a sheet includes: a humidifying portion which humidifies a sheet by a humidifying liquid; and an absorbing member which provided in a downstream side of the humidifying portion in a sheet conveying direction and is capable of absorbing the humidifying liquid on the surface of the sheet into the inside thereof.Type: GrantFiled: April 24, 2015Date of Patent: May 10, 2016Assignee: Canon Kabushiki KaishaInventors: Kazuhisa Okuda, Koji Takematsu, Kenjiro Sugaya
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Publication number: 20160101952Abstract: A sheet conveying apparatus includes a sheet conveying path through which a sheet is conveyed, and a burr pushing portion provided on the sheet conveying path and pushing down a burr, formed at one side edge in a width direction orthogonal to a sheet conveying direction of the sheet, in the width direction. The burr pushing portion includes a contact portion coming into contact with the burrs while inclining with respect to the side edge of the sheet conveyed thereto.Type: ApplicationFiled: October 7, 2015Publication date: April 14, 2016Inventors: Kenjiro Sugaya, Osamu Sugino, Hiroki Muramatsu, Masahiro Tsujibayashi, Michiaki Endo, Teppei Nagata, Rikiya Takemasa
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Publication number: 20160077481Abstract: A sheet processing apparatus includes a first roller pair configured to nip a sheet at a nip portion and convey the sheet, and a second roller pair disposed on a downstream side of the first roller pair in a sheet conveyance direction and configured to nip the sheet at a nip portion and convey the sheet. When the sheet is nipped by the first and the second roller pairs, a bending stress occurs on the sheet.Type: ApplicationFiled: September 15, 2015Publication date: March 17, 2016Inventors: Shingo Katano, Koji Takematsu, Kenjiro Sugaya
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Patent number: 9284142Abstract: In order to correct a corrugation caused when a sheet widthwise edge portion elongates more than the vicinity of the center in a sheet feeding direction, a sheet processing apparatus includes: a fixing portion that fixes a toner image onto a sheet by heating, a plurality of pairs of rollers provided along a sheet feeding direction with an interval in the downstream of the fixing portion in the feeding direction to nip and convey a sheet; and a tensioning device that applies a tensile strength of the sheet feeding direction to a sheet in a center area of a width direction perpendicular to the sheet feeding direction.Type: GrantFiled: March 20, 2014Date of Patent: March 15, 2016Assignee: Canon Kabushiki KaishaInventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya, Shutaro Saito
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Patent number: 9285727Abstract: A sheet conveying apparatus includes a first pair of rotating members; a second pair of rotating members which is provided in a downstream side of the first pair of rotating members in a conveying direction of a sheet; and a load portion which applies a load on a rotation of the first pair of rotating members to generate a tensile stress in the sheet; wherein the load portion includes, a slidably moving member arranged on both sides in an axial direction of a rotary member, a fixing member arranged to nip the slidably moving member on both sides in the axial direction of the rotary member from both outer sides in the axial direction, the fixing member being arranged to be movable in the axial direction and being rotation regulated, and a force applying portion which applies force on the fixing member in the axial direction of the rotary member.Type: GrantFiled: April 24, 2015Date of Patent: March 15, 2016Assignee: Canon Kabushiki KaishaInventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya
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Publication number: 20160070224Abstract: In order to correct a corrugation caused when a sheet widthwise edge portion elongates more than the vicinity of the center in a sheet feeding direction, a sheet processing apparatus includes: a fixing portion that fixes a toner image onto a sheet by heating, a plurality of pairs of rollers provided along a sheet feeding direction with an interval in the downstream of the fixing portion in the feeding direction to nip and convey a sheet; and a tensioning device that applies a tensile strength of the sheet feeding direction to a sheet in a center area of a width direction perpendicular to the sheet feeding direction.Type: ApplicationFiled: November 19, 2015Publication date: March 10, 2016Inventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya, Shutaro Saito
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Patent number: 9250580Abstract: An image heating apparatus includes: a rotatable heating member; an coil provided outside the heating member and configured to generate heat by electromagnetic induction in the heating member; a coil holder configured to hold the coil; a plurality of magnetic cores arranged opposed to the heating member along a longitudinal direction of the heating member with the coil interposed therebetween; a core holder configured to hold at least one of the magnetic cores which is movable; and a moving mechanism configured to move the core holder between a first position and a second position which is farther away from the heating member than the first position. The core holder is provided with a stopper portion configured to stop movement of the core holder from the second position to the first position by abutment to the coil holder.Type: GrantFiled: July 29, 2013Date of Patent: February 2, 2016Assignee: Canon Kabushiki KaishaInventor: Kenjiro Sugaya
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Publication number: 20150316890Abstract: A sheet conveying apparatus which conveys a sheet includes: a humidifying portion which humidifies a sheet by a humidifying liquid; and an absorbing member which provided in a downstream side of the humidifying portion in a sheet conveying direction and is capable of absorbing the humidifying liquid on the surface of the sheet into the inside thereof.Type: ApplicationFiled: April 24, 2015Publication date: November 5, 2015Inventors: Kazuhisa Okuda, Koji Takematsu, Kenjiro Sugaya
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Publication number: 20150316876Abstract: A sheet conveying apparatus includes a first pair of rotating members; a second pair of rotating members which is provided in a downstream side of the first pair of rotating members in a conveying direction of a sheet; and a load portion which applies a load on a rotation of the first pair of rotating members to generate a tensile stress in the sheet; wherein the load portion includes, a slidably moving member arranged on both sides in an axial direction of a rotary member, a fixing member arranged to nip the slidably moving member on both sides in the axial direction of the rotary member from both outer sides in the axial direction, the fixing member being arranged to be movable in the axial direction and being rotation regulated, and a force applying portion which applies force on the fixing member in the axial direction of the rotary member.Type: ApplicationFiled: April 24, 2015Publication date: November 5, 2015Inventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya
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Publication number: 20150316877Abstract: Provided is a sheet conveying apparatus including: a first pair of rotating members which includes a first rotating member and a second rotating member and conveys a sheet; a second pair of rotating members provided in a downstream side of the first pair of rotating members in a sheet conveying direction and conveys a sheet; a load portion capable of applying a load to rotation of the first pair of rotating members so as to generate a tensile stress onto the sheet when the sheet is nipped by the first pair of rotating members and the second pair of rotating members; and a load transmission path which transmits a load torque according to the load portion to the first rotating member and the second rotating member.Type: ApplicationFiled: April 24, 2015Publication date: November 5, 2015Inventors: Kazuhisa Okuda, Koji Takematsu, Kenjiro Sugaya
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Publication number: 20150232293Abstract: Provided is a sheet conveying apparatus which includes a conveyance unit and a controller. The conveyance unit includes a first pair of rotators which convey a sheet, a second pair of rotators which are provided on a downstream side of the first pair of rotators in a sheet conveying direction and convey the sheet, and a load portion which applies a load on the rotation of the first pair of rotators to generate a tensile stress on the sheet when the sheet is nipped between the first pair of rotators and the second pair of rotators. The controller controls whether to apply a load on the first pair of rotators by the load portion based on information on the conveyed sheet.Type: ApplicationFiled: January 27, 2015Publication date: August 20, 2015Inventors: Kenjiro Sugaya, Koji Takematsu, Kazuhisa Okuda, Shutaro Saito
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Publication number: 20150205258Abstract: A humidification device for humidifying a sheet, comprising a control unit that rotates a water-supply roller in a separate state where the water-supply roller and a humidification roller are separated from each other.Type: ApplicationFiled: January 21, 2015Publication date: July 23, 2015Inventors: Kenjiro Sugaya, Kazuhisa Okuda, Koji Takematsu, Shutaro Saito
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Publication number: 20150115527Abstract: Provided is a sheet conveying apparatus which can improve rippling of a sheet. The sheet conveying apparatus which conveys the sheet includes an electromagnetic hysteresis brake 131 which is configured to apply a tension force in a conveying direction of the sheet and a controller 500C which performs control on the electromagnetic hysteresis brake 131 to vary a load. The controller 500C performs control on the load of the electromagnetic hysteresis brake 131 according to information relating to the sheet.Type: ApplicationFiled: September 4, 2014Publication date: April 30, 2015Inventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya
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Publication number: 20140205317Abstract: In order to correct a corrugation caused when a sheet widthwise edge portion elongates more than the vicinity of the center in a sheet feeding direction, a sheet processing apparatus includes: a fixing portion that fixes a toner image onto a sheet by heating, a plurality of pairs of rollers provided along a sheet feeding direction with an interval in the downstream of the fixing portion in the feeding direction to nip and convey a sheet; and a tensioning device that applies a tensile strength of the sheet feeding direction to a sheet in a center area of a width direction perpendicular to the sheet feeding direction.Type: ApplicationFiled: March 20, 2014Publication date: July 24, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya, Shutaro Saito