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1. 发明授权

US10942476B2 Image forming apparatus with a plurality of individually-controlled heat generating resistors having different temperature coefficients of resistance 有权
公开(公告)号：US10942476B2
公开(公告)日：2021-03-09
申请号：US16715313
申请日：2019-12-16
申请人： CANON KABUSHIKI KAISHA
发明人： Ryota Ogura , Yusuke Nakashima
IPC分类号： G03G15/20
摘要： 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.

2. 发明授权

US09091977B2 Heater with insulated substrate having through holes and image heating apparatus including the heater 有权
标题翻译：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
申请人： CANON KABUSHIKI KAISHA
发明人： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20 , H05B3/46
CPC分类号： G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
摘要： 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.
摘要翻译：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。

3. 发明申请

US20150139672A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150139672A1
公开(公告)日：2015-05-21
申请号：US14541657
申请日：2014-11-14
申请人： CANON KABUSHIKI KAISHA
发明人： Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20
CPC分类号： G03G15/80 , G03G15/2039 , G03G2215/2035
摘要： 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.
摘要翻译：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。

4. 发明申请

US20210405561A1 HEATING UNIT, FIXING UNIT, AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210405561A1
公开(公告)日：2021-12-30
申请号：US17359140
申请日：2021-06-25
申请人： CANON KABUSHIKI KAISHA
发明人： Yusuke Nakashima
IPC分类号： G03G15/20 , G03G15/00
摘要： 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.

5. 发明授权

US10433380B2 Triac driving circuit and fixing apparatus having resistive elements in series with different characteristics for circuit protection 有权
公开(公告)号：US10433380B2
公开(公告)日：2019-10-01
申请号：US16259840
申请日：2019-01-28
申请人： CANON KABUSHIKI KAISHA
发明人： Yusuke Nakashima , Takao Kawazu , Tetsuya Yamamoto
IPC分类号： G05F5/06 , H05B33/08 , H02M5/275
摘要： 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.

6. 发明申请

US20190239301A1 TRIAC DRIVING CIRCUIT AND FIXING APPARATUS HAVING RESISTIVE ELEMENTS IN SERIES WITH DIFFERENT CHARACTERISTICS FOR CIRCUIT PROTECTION 审中-公开
公开(公告)号：US20190239301A1
公开(公告)日：2019-08-01
申请号：US16259840
申请日：2019-01-28
申请人： CANON KABUSHIKI KAISHA
发明人： Yusuke Nakashima , Takao Kawazu , Tetsuya Yamamoto
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , H02M5/275 , H05B33/0821 , H05B33/089
摘要： 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.

7. 发明申请

US20150268608A1 HEATER AND IMAGE HEATING APPARATUS INCLUDING THE HEATER 审中-公开
标题翻译：加热器和图像加热装置，包括加热器
公开(公告)号：US20150268608A1
公开(公告)日：2015-09-24
申请号：US14733283
申请日：2015-06-08
申请人： CANON KABUSHIKI KAISHA
发明人： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20 , H05B3/26
CPC分类号： G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
摘要： 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.
摘要翻译：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。

8. 发明授权

US08983328B2 Connector for heater, fixing apparatus and image forming apparatus 有权
标题翻译：加热器连接器，定影装置和成像装置
公开(公告)号：US08983328B2
公开(公告)日：2015-03-17
申请号：US13890501
申请日：2013-05-09
申请人： Canon Kabushiki Kaisha
发明人： Takayuki Mizuta , Hideki Ohta , Atsuhiko Yamaguchi , Yusuke Nakashima
IPC分类号： G03G21/00 , G03G21/18
CPC分类号： G03G15/80 , G03G15/2053 , G03G21/1652 , G03G21/1867
摘要： An image fixing apparatus includes a heater including a substrate, a first electrode provided on one side of the substrate and a second electrode provided on the other side of the substrate; and a connector, connected with the heater, for receiving electric power, the connector including an electrically insulative housing, and a contact terminal provided inside the housing and having first spring contact contacted to the first electrode and a second spring contact contacted to the second electrode, wherein the first spring contact and the second spring contact are disposed at positions different as seen in a direction perpendicular to a surface of the substrate.
摘要翻译：图像定影装置包括：加热器，包括基板，设置在基板一侧的第一电极和设置在基板另一侧的第二电极; 以及与所述加热器连接的用于接收电力的连接器，所述连接器包括电绝缘壳体和设置在所述壳体内的接触端子，并且具有与所述第一电极接触的第一弹簧接触件和与所述第二电极接触的第二弹簧接触件，其中所述第一弹簧触点和所述第二弹簧触点设置在垂直于所述基板的表面的方向上看不同的位置。

9. 发明申请

US20130108306A1 HEATER AND IMAGE HEATING APPARATUS INCLUDING THE HEATER 有权
公开(公告)号：US20130108306A1
公开(公告)日：2013-05-02
申请号：US13659266
申请日：2012-10-24
申请人： Canon Kabushiki Kaisha
发明人： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20 , H05B3/02
CPC分类号： G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
摘要： 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.

10. 发明申请

US20210405558A1 FIXING UNIT AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210405558A1
公开(公告)日：2021-12-30
申请号：US17341800
申请日：2021-06-08
申请人： Canon Kabushiki Kaisha
发明人： Kouji Yasukawa , Yusuke Nakashima , Ryo Okuzumi
IPC分类号： G03G15/20 , G03G15/00
摘要： 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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