Patents by Inventor Nobuyoshi Komatsu
Nobuyoshi Komatsu 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: 11703785Abstract: A decurling device includes: a rotary body; an endless correction belt configured to correct curl of a recording medium passing between the rotary body and the correction belt; and a pressure contact unit disposed inside the correction belt, an opposite surface of the pressure contact unit to the rotary body being supported by a support unit so as to be in pressure contact with the rotary body, in which a center portion, in an axial direction of the rotary body, of at least one of a contact portion of the pressure contact unit or a contact portion of the support unit further protrudes toward the other of the contact portion of the pressure contact unit and the contact portion of the support unit than both end portions thereof.Type: GrantFiled: May 14, 2021Date of Patent: July 18, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Nobuyoshi Komatsu, Shingo Akiyama
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Publication number: 20220113662Abstract: A decurling device includes: a rotary body: an endless correction belt configured to correct curl of a recording medium passing between the rotary body and the correction belt; and a pressure contact unit disposed inside the correction belt, an opposite surface of the pressure contact unit to the rotary body being supported by a support unit so as to be in pressure contact with the rotary body, in which a center portion, in an axial direction of the rotary body, of at least one of a contact portion of the pressure contact unit or a contact portion of the support unit further protrudes toward the other of the contact portion of the pressure contact unit and the contact portion of the support unit than both end portions thereof.Type: ApplicationFiled: May 14, 2021Publication date: April 14, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Nobuyoshi Komatsu, Shingo Akiyama
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Patent number: 11279147Abstract: A decurling device includes: a first transporter including a transport roller, the first transporter that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transporter including an endless belt that is in contact with the transport roller. The transport roller has an elasticity that, when the belt is pressed against the transport roller, allows the belt to bite into the transport roller by a bite amount corresponding to a pressing force, the second transporter includes an abutting member disposed inside the belt, the abutting member includes an upstream protrusion, an downstream protrusion, the upstream protrusion and the downstream protrusion being provided at positions away from each other at an upstream portion and a downstream portion in a sheet transport direction.Type: GrantFiled: July 16, 2020Date of Patent: March 22, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Shingo Akiyama, Nobuyoshi Komatsu, Shogo Kamiya, Seiji Taira
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Patent number: 11249433Abstract: A decurling device includes: a first transport unit including a transport roller, the first transport unit that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transport unit including an endless belt that is in contact with the transport roller.Type: GrantFiled: August 4, 2020Date of Patent: February 15, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Nobuyoshi Komatsu, Shingo Akiyama, Shogo Kamiya, Seiji Taira
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Publication number: 20210302896Abstract: A decurling device includes: a first transport unit including a transport roller, the first transport unit that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transport unit including an endless belt that is in contact with the transport roller.Type: ApplicationFiled: August 4, 2020Publication date: September 30, 2021Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Nobuyoshi Komatsu, Shingo Akiyama, Shogo Kamiya, Seiji Taira
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Publication number: 20210300066Abstract: A decurling device includes: a first transporter including a transport roller, the first transporter that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transporter including an endless belt that is in contact with the transport roller. The transport roller has an elasticity that, when the belt is pressed against the transport roller, allows the belt to bite into the transport roller by a bite amount corresponding to a pressing force, the second transporter includes an abutting member disposed inside the belt, the abutting member includes an upstream protrusion, an downstream protrusion, the upstream protrusion and the downstream protrusion being provided at positions away from each other at an upstream portion and a downstream portion in a sheet transport direction.Type: ApplicationFiled: July 16, 2020Publication date: September 30, 2021Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Shingo AKIYAMA, Nobuyoshi KOMATSU, Shogo KAMIYA, Seiji TAIRA
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Patent number: 10816921Abstract: A fixing apparatus includes a heating section including a belt having a layered structure in which a metal layer is held between nonmetal layers. The belt has a front surface that comes into contact with a toner image and a back surface that does not come into contact with the toner image. The belt has a first thickness from the front surface to the metal layer inside the belt and a second thickness from the back surface to the metal layer inside the belt. The fixing apparatus also includes a pressure section that holds, between the pressure section and the belt, a transported sheet of paper holding the toner image and that applies pressure to the sheet of paper. The fixing apparatus further includes a first static eliminating section that eliminates static from the belt while being in contact with a surface of the belt.Type: GrantFiled: January 22, 2020Date of Patent: October 27, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Tsuyoshi Sunohara, Nobuyoshi Komatsu, Yuichiro Saito, Yasunori Fujimoto
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Patent number: 9581949Abstract: A fixing device includes a belt member that performs a circular motion by rotating in a predetermined belt rotation direction; a pressure-applying member that is pressed against an outer peripheral surface of the belt member and applies a pressure to a recording medium on which an image is formed; and a pressing member that extends in a belt width direction, which is a direction that crosses the belt rotation direction, inside the belt member and that is arranged so as to be deformed such that a central portion thereof in the belt width direction is convex toward an upstream side in the belt rotation direction, the pressing member pressing the pressure-applying member with the belt member interposed therebetween.Type: GrantFiled: January 20, 2016Date of Patent: February 28, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Nobuyoshi Komatsu, Masaki Nagata
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Publication number: 20170010573Abstract: A fixing device includes a belt member that performs a circular motion by rotating in a predetermined belt rotation direction; a pressure-applying member that is pressed against an outer peripheral surface of the belt member and applies a pressure to a recording medium on which an image is formed; and a pressing member that extends in a belt width direction, which is a direction that crosses the belt rotation direction, inside the belt member and that is arranged so as to be deformed such that a central portion thereof in the belt width direction is convex toward an upstream side in the belt rotation direction, the pressing member pressing the pressure-applying member with the belt member interposed therebetween.Type: ApplicationFiled: January 20, 2016Publication date: January 12, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Nobuyoshi KOMATSU, Masaki NAGATA
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Patent number: 9459570Abstract: A fixing device includes a fixing member that fixes a toner image to a recording medium, a pressure member that forms, together with the fixing member, a pressure portion through which the recording medium carrying the toner image yet to be fixed passes, and a heating member including a heating layer that generates heat when energized and an insulating layer that encloses the heating layer so as to electrically insulate the heating layer. The heating member has a curved shape along an inner peripheral surface of the fixing member, in a state in which no external force is applied, and is in contact with the inner peripheral surface of the fixing member.Type: GrantFiled: February 25, 2014Date of Patent: October 4, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Mikio Saiki, Mitsuhiro Matsumoto, Kazuyoshi Ito, Yasuhiro Uehara, Atsumi Kurita, Hideaki Ohara, Hiromi Nagai, Nobuyoshi Komatsu
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Publication number: 20160259282Abstract: A fixing device includes a pressure applying unit that is provided facing a heating unit. The pressure applying unit includes an endless belt-shaped member that rotates by being driven by rotation of the heating unit, and a retainer that retains the endless belt-shaped member in a movable manner. The retainer has an upstream adjuster that is located at an upstream side of the endless belt-shaped member in a rotational direction thereof and that has a curved shape with a center, in a longitudinal direction of the retainer, which is a most bulging area from which the upstream adjuster decreases in height toward opposite ends of the upstream adjuster.Type: ApplicationFiled: September 2, 2015Publication date: September 8, 2016Applicant: FUJI XEROX CO., LTD.Inventors: Nobuyoshi KOMATSU, Masaki NAGATA, Motoi NOYA, Yusuke KANAI
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Publication number: 20160246231Abstract: A fixing device includes a fixing roller, a rotatable endless belt forming a nip between the fixing roller and the belt, a heating member whose heat source heats the nip, a support member disposed in the belt to face the fixing roller and having a surface having a substantially non-arc shape in a rotation direction of the belt and being in contact with an inner surface of the belt to sandwich the belt between the support member and the fixing roller, and a pressing member including guiding members that support and guide end edges of the belt. The guiding members each have a groove having inner and outer walls that guide an edge of the belt in a direction in which a rotation axis of the belt extends and a substantially arc-shaped bottom surface that extends around the axis and along which an end surface of the belt slides.Type: ApplicationFiled: August 31, 2015Publication date: August 25, 2016Applicant: FUJI XEROX CO., LTD.Inventors: Motoi NOYA, Masaki NAGATA, Nobuyoshi KOMATSU, Yusuke KANAI
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Patent number: 9235171Abstract: Provided is a fixing device including a heating unit that includes a circularly moving heating belt, and a pressurizing roller that presses an external face of the heating belt, the fixing device fixing a toner image on a sheet onto the sheet by nipping the sheet between the heating belt and the pressurizing roller and by heating and pressurizing the sheet transported with the toner image being held.Type: GrantFiled: May 8, 2014Date of Patent: January 12, 2016Assignee: FUJI XEROX CO., LTDInventors: Hideaki Ohara, Mitsuhiro Matsumoto, Kazuyoshi Ito, Yasuhiro Uehara, Mikio Saiki, Hiromi Nagai, Nobuyoshi Komatsu, Hiroki Murakami, Junji Okada, Kimiyuki Kawakami, Tadashi Suto
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Patent number: 9122214Abstract: Provided is a fixing device including a fixing member that fixes a toner image onto a recording material, a pressurizing member that forms a pressurizing portion, in cooperation with the fixing member, through which the recording material holding a non-fixed toner image passes, a heating member that includes a heat generating portion having a predetermined pattern shape and being energized to generate heat, and heats the fixing member, a supporting member that supports the heating member along an inner circumferential surface of the fixing member, and a thermal diffusion member that faces the supporting member with interposing the heating member, and diffuses heat from the heating member and conducts the heat to the fixing member.Type: GrantFiled: May 19, 2014Date of Patent: September 1, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Mitsuhiro Matsumoto, Hideaki Ohara, Nobuyoshi Komatsu, Yasuhiro Uehara, Kazuyoshi Ito, Mikio Saiki, Hiromi Nagai
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Publication number: 20150125191Abstract: Provided is a fixing device including a heating unit that includes a circularly moving heating belt, and a pressurizing roller that presses an external face of the heating belt, the fixing device fixing a toner image on a sheet onto the sheet by nipping the sheet between the heating belt and the pressurizing roller and by heating and pressurizing the sheet transported with the toner image being held.Type: ApplicationFiled: May 8, 2014Publication date: May 7, 2015Applicant: FUJI XEROX CO., LTDInventors: Hideaki OHARA, Mitsuhiro MATSUMOTO, Kazuyoshi ITO, Yasuhiro UEHARA, Mikio SAIKI, Hiromi NAGAI, Nobuyoshi KOMATSU, Hiroki MURAKAMI, Junji OKADA, Kimiyuki KAWAKAMI, Tadashi SUTO
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Publication number: 20150098737Abstract: Provided is a fixing device including a fixing member that fixes a toner image onto a recording material, a pressurizing member that forms a pressurizing portion, in cooperation with the fixing member, through which the recording material holding a non-fixed toner image passes, a heating member that includes a heat generating portion having a predetermined pattern shape and being energized to generate heat, and heats the fixing member, a supporting member that supports the heating member along an inner circumferential surface of the fixing member, and a thermal diffusion member that faces the supporting member with interposing the heating member, and diffuses heat from the heating member and conducts the heat to the fixing member.Type: ApplicationFiled: May 19, 2014Publication date: April 9, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Mitsuhiro MATSUMOTO, Hideaki OHARA, Nobuyoshi KOMATSU, Yasuhiro UEHARA, Kazuyoshi ITO, Mikio SAIKI, Hiromi NAGAI
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Publication number: 20150030360Abstract: A fixing device includes a fixing member that fixes a toner image to a recording medium, a pressure member that forms, together with the fixing member, a pressure portion through which the recording medium carrying the toner image yet to be fixed passes, and a heating member including a heating layer that generates heat when energized and an insulating layer that encloses the heating layer so as to electrically insulate the heating layer. The heating member has a curved shape along an inner peripheral surface of the fixing member, in a state in which no external force is applied, and is in contact with the inner peripheral surface of the fixing member.Type: ApplicationFiled: February 25, 2014Publication date: January 29, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Mikio SAIKI, Mitsuhiro MATSUMOTO, Kazuyoshi ITO, Yasuhiro UEHARA, Atsumi KURITA, Hideaki OHARA, Hiromi NAGAI, Nobuyoshi KOMATSU
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Patent number: 8897686Abstract: A fixing device includes a heat assembly including an endless belt, a heat source, an attachment member having an attachment surface and first and second side surfaces, and a slide sheet having first and second end portions that are respectively fixed to a first fixing portion at the first side surface and a second fixing portion at the second side surface, the slide sheet having a larger length from the first end portion to the second end portion than a length of a path of the attachment member extending from the first fixing portion to the second fixing portion through the first side surface, the attachment surface, and the second side surface; and a pressure roller that presses the outer surface of the endless belt to the attachment surface.Type: GrantFiled: September 12, 2012Date of Patent: November 25, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Mitsuhiro Matsumoto, Hiroyoshi Inoue, Junpei Amano, Nobuyoshi Komatsu, Atsumi Kurita
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Publication number: 20130236223Abstract: A fixing device includes a heat assembly including an endless belt, a heat source, an attachment member having an attachment surface and first and second side surfaces, and a slide sheet having first and second end portions that are respectively fixed to a first fixing portion at the first side surface and a second fixing portion at the second side surface, the slide sheet having a larger length from the first end portion to the second end portion than a length of a path of the attachment member extending from the first fixing portion to the second fixing portion through the first side surface, the attachment surface, and the second side surface; and a pressure roller that presses the outer surface of the endless belt to the attachment surface.Type: ApplicationFiled: September 12, 2012Publication date: September 12, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Mitsuhiro MATSUMOTO, Hiroyoshi INOUE, Junpei AMANO, Nobuyoshi KOMATSU, Atsumi KURITA
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Publication number: 20130236224Abstract: A fixing device includes a heat assembly including an endless belt, a heat source, an attachment member having an attachment surface and first and second side surfaces, and a slide sheet having first and second end portions that are respectively fixed to a first fixing portion at the first side surface and a second fixing portion at the second side surface, the slide sheet having a larger length from the first end portion to the second end portion than a length of a path of the attachment member extending from the first fixing portion to the second fixing portion through the first side surface, the attachment surface, and the second side surface; and a pressure roller that presses the outer surface of the endless belt to the attachment surface.Type: ApplicationFiled: September 12, 2012Publication date: September 12, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Mitsuhiro MATSUMOTO, Hiroyoshi INOUE, Junpei AMANO, Nobuyoshi KOMATSU, Atsumi KURITA