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公开(公告)号：US12055879B2
公开(公告)日：2024-08-06
申请号：US18327159
申请日：2023-06-01
Applicant: Canon Kabushiki Kaisha
Inventor： Kouji Yasukawa , Yusuke Nakashima , Ryo Okuzumi
CPC classification number: G03G15/2053 , G03G15/2064 , G03G15/5004
Abstract: A fixing unit includes a film including a tubular shape and configured to rotate, a heater arranged inside the film and including a heating resistor configured to generate heat by passing alternating current therethrough and an insulator configured to cover the heating resistor, a sliding member arranged between the heater and the film and configured to be in sliding contact with an inner surface of the film, the sliding member having electric conductivity, a pressing member configured to be in pressure contact with the sliding member across the film to form a nip portion between the sliding member and the pressing member, and a conductive member electrically connected to a ground potential via at least one impedance element. The sliding member is electrically connected to the conductive member.
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公开(公告)号：US10942476B2
公开(公告)日：2021-03-09
申请号：US16715313
申请日：2019-12-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryota Ogura , Yusuke Nakashima
IPC: G03G15/20
Abstract: In an image forming apparatus including an image heating portion that heats an image formed on a recording material using heat of a heater constituted of a substrate and a plurality of heat generating resistors disposed on the substrate, the plurality of heat generating resistors include (i) a first heat generating resistor that has a first temperature coefficient of resistance, and (ii) a second heat generating resistor that has a second temperature coefficient of resistance which is smaller than the first temperature coefficient of resistance, and heats a second heating region of which width in the longitudinal direction of the substrate is narrower than the first heating region which is heated by the first heat generating resistor, among the plurality of heating regions heated by the plurality of heat generating resistors.
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3.发明授权Heater with insulated substrate having through holes and image heating apparatus including the heater 有权具有通孔的绝缘基板的加热器和包括加热器的图像加热装置公开(公告)号：US09091977B2
公开(公告)日：2015-07-28
申请号：US13659266
申请日：2012-10-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
CPC classification number: G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
Abstract: The image heating apparatus includes an endless belt, a connector and a heater including an insulated substrate, a heat generating resistor, an electrode brought into contact with a contact of the connector; and a conductor provided on a surface of the insulated substrate opposite to a surface on which the electrode wherein the insulated substrate includes multiple through holes electrically connecting the electrode and the conductor to each other, in an area in which the electrode is provided, wherein the distances between a position on the electrode brought into contact with the contact and the multiple through holes are substantially equal to each other, so that burning of the through hole and conduction failure caused by the burning can be prevented.
Abstract translation: 图像加热装置包括环形带，连接器和加热器，其包括绝缘基板，发热电阻器，与连接器的触点接触的电极; 以及设置在所述绝缘基板的与所述电极相对的表面上的导体，所述导体在所述绝缘基板的所述电极的所述电极的区域中包括将所述电极和所述导体彼此电连接的多个通孔， 与触点接触的电极上的位置和多个通孔之间的距离基本上彼此相等，从而可以防止通孔的燃烧和由燃烧引起的导电故障。
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公开(公告)号：US20150139672A1
公开(公告)日：2015-05-21
申请号：US14541657
申请日：2014-11-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yusuke Nakashima , Atsuhiko Yamaguchi
IPC: G03G15/20
CPC classification number: G03G15/80 , G03G15/2039 , G03G2215/2035
Abstract: An image forming apparatus includes a fixing portion for heating and fixing an unfixed image formed on a recording material, the fixing portion including a cylindrical film, a heater provided in a cylindrical shape of the film, a switch portion actuatable by heat from the heater, and a protection element for shutting off electric power supplied to the heater; a DC voltage source for generating a DC voltage from commercial AC voltage source, wherein the protection element is disposed in the shape of cylinder of the film is connected in a DC circuit operable by the DC voltage source, and wherein when the switch portion is rendered off, the electric power supply to the heater is shut off.
Abstract translation: 图像形成装置包括用于加热和固定形成在记录材料上的未定影图像的固定部分，所述固定部分包括圆柱形膜，设置在所述胶片的圆柱形状中的加热器，可通过来自所述加热器的热量致动的开关部分， 以及用于切断供给到加热器的电力的保护元件; 用于从商业交流电压源产生直流电压的直流电压源，其中所述保护元件设置在所述膜的圆筒形状中，所述直流电压源由直流电压源可操作的直流电路连接，并且其中当所述开关部分呈现时 关闭，加热器的电源被关闭。
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公开(公告)号：US20240337974A1
公开(公告)日：2024-10-10
申请号：US18748232
申请日：2024-06-20
Applicant: Canon Kabushiki Kaisha
Inventor： Kouji Yasukawa , Yusuke Nakashima , Ryo Okuzumi
CPC classification number: G03G15/2053 , G03G15/2064 , G03G15/5004
Abstract: A fixing unit includes a film including a tubular shape and configured to rotate, a heater arranged inside the film and including a heating resistor configured to generate heat by passing alternating current therethrough and an insulator configured to cover the heating resistor, a sliding member arranged between the heater and the film and configured to be in sliding contact with an inner surface of the film, the sliding member having electric conductivity, a pressing member configured to be in pressure contact with the sliding member across the film to form a nip portion between the sliding member and the pressing member, and a conductive member electrically connected to a ground potential via at least one impedance element. The sliding member is electrically connected to the conductive member.
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Patent Agency Ranking
公开(公告)号：US20230305463A1
公开(公告)日：2023-09-28
申请号：US18327159
申请日：2023-06-01
Applicant: Canon Kabushiki Kaisha
Inventor： Kouji Yasukawa , Yusuke Nakashima , Ryo Okuzumi
CPC classification number: G03G15/2053 , G03G15/5004 , G03G15/2064
Abstract: A fixing unit includes a film including a tubular shape and configured to rotate, a heater arranged inside the film and including a heating resistor configured to generate heat by passing alternating current therethrough and an insulator configured to cover the heating resistor, a sliding member arranged between the heater and the film and configured to be in sliding contact with an inner surface of the film, the sliding member having electric conductivity, a pressing member configured to be in pressure contact with the sliding member across the film to form a nip portion between the sliding member and the pressing member, and a conductive member electrically connected to a ground potential via at least one impedance element. The sliding member is electrically connected to the conductive member.
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公开(公告)号：US20210405561A1
公开(公告)日：2021-12-30
申请号：US17359140
申请日：2021-06-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yusuke Nakashima
Abstract: A heating unit includes a board including metal, an insulating layer including insulating material and formed on a surface of the board, a heating element disposed on the insulating layer to generate heat by passing an electric current through the heating element, and a conductive portion electrically connecting the heating element and the board to each other. The heating unit further includes a first power supplying electrode electrically connected to the heating element and a second power supplying electrode electrically connected to the board. The heating element, the conductive portion and the board constitute an electric circuit between the first power supplying electrode and the second power supplying electrode. The heating element generates the heat in a case where the first power supplying electrode and the second power supplying electrode are electrically connected to a power source and the electric current is passed through the electric circuit.
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公开(公告)号：US10433380B2
公开(公告)日：2019-10-01
申请号：US16259840
申请日：2019-01-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yusuke Nakashima , Takao Kawazu , Tetsuya Yamamoto
Abstract: A triac driving circuit according to an embodiment of the present disclosure includes a phototriac coupler, a first resistive element, and a second resistive element, which are connected in series to a gate terminal of a triac. A minimum resistance of the first resistive element including tolerance is higher than a maximum resistance of the second resistive element including tolerance.
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公开(公告)号：US20190239301A1
公开(公告)日：2019-08-01
申请号：US16259840
申请日：2019-01-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yusuke Nakashima , Takao Kawazu , Tetsuya Yamamoto
IPC: H05B33/08
CPC classification number: H05B33/0818 , H02M5/275 , H05B33/0821 , H05B33/089
Abstract: A triac driving circuit according to an embodiment of the present disclosure includes a phototriac coupler, a first resistive element, and a second resistive element, which are connected in series to the gate terminal of the triac. A minimum resistance of the first resistive element including tolerance is higher than the maximum resistance of the second resistive element including tolerance.
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公开(公告)号：US20150268608A1
公开(公告)日：2015-09-24
申请号：US14733283
申请日：2015-06-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
CPC classification number: G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
Abstract: The image heating apparatus includes an endless belt, a connector and a heater including an insulated substrate, a heat generating resistor, an electrode brought into contact with a contact of the connector; and a conductor provided on a surface of the insulated substrate opposite to a surface on which the electrode wherein the insulated substrate includes multiple through holes electrically connecting the electrode and the conductor to each other, in an area in which the electrode is provided, wherein the distances between a position on the electrode brought into contact with the contact and the multiple through holes are substantially equal to each other, so that burning of the through hole and conduction failure caused by the burning can be prevented.
Abstract translation: 图像加热装置包括环形带，连接器和加热器，其包括绝缘基板，发热电阻器，与连接器的触点接触的电极; 以及设置在所述绝缘基板的与所述电极相对的表面上的导体，所述导体在所述绝缘基板的所述电极的所述电极的区域中包括将所述电极和所述导体彼此电连接的多个通孔， 与触点接触的电极上的位置和多个通孔之间的距离基本上彼此相等，从而可以防止通孔的燃烧和由燃烧引起的导电故障。
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