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21. 发明授权

US07203438B2 Image heating apparatus and heater for use therein 有权
标题翻译：用于其中的图像加热装置和加热器
公开(公告)号：US07203438B2
公开(公告)日：2007-04-10
申请号：US11038066
申请日：2005-01-21
申请人： Masahito Omata , Hisashi Nakahara , Yusuke Nakazono , Satoshi Nishida , Eiji Uekawa , Isamu Takeda , Noriyuki Ito
发明人： Masahito Omata , Hisashi Nakahara , Yusuke Nakazono , Satoshi Nishida , Eiji Uekawa , Isamu Takeda , Noriyuki Ito
IPC分类号： G03G15/20
CPC分类号： G03G15/2042 , H05B3/0095
摘要： Image heating apparatus capable of preventing an excessive temperature increase in a sheet non-passing area and heater for use in the image heating apparatus including: a substrate, a heat generating resistor formed on the substrate, and first and second electrodes for supplying an electric power to the heat generating resistor. Each of the first and second electrodes has a first area to contact a power supplying connector and a second area provided at an end portion electrically opposite to the first area along a longitudinal direction of the substrate, and the heat generating resistor is provided to electrically connect the second area of the first and second electrode so that when the heater is at a set temperature for an image heating operation a resistance value Rc of the second area, and a resistance value Rt between a portion within the second area of the first and second electrode and electrically closest to the first area satisfy a relation Rc/Rt
摘要翻译：一种图像加热装置，其能够防止图像加热装置中使用的片材不通过区域和加热器的温度升高，包括：基板，形成在基板上的发热电阻器，以及用于提供电力的第一和第二电极到发热电阻器。第一电极和第二电极中的每一个具有接触供电连接器的第一区域和沿着基板的纵向方向设置在与第一区域电相对的端部处的第二区域，并且发热电阻器被设置为电连接第一和第二电极的第二区域，使得当加热器处于图像加热操作的设定温度时，第二区域的电阻值Rc和第一和第二电极的第二区域内的部分之间的电阻值Rt 电极和最靠近第一区域的电极满足关系Rc / Rt <= 1/30。

22. 发明授权

US09037020B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09037020B2
公开(公告)日：2015-05-19
申请号：US13823969
申请日：2011-12-09
申请人： Eiji Uekawa , Yasuo Yoda , Yasunari Kobaru , Takahiro Uchiyama
发明人： Eiji Uekawa , Yasuo Yoda , Yasunari Kobaru , Takahiro Uchiyama
IPC分类号： G03G15/16 , G03G15/06 , G03G15/32
CPC分类号： G03G15/065 , G03G15/325
摘要： An image forming apparatus includes a toner carrying member for carrying a toner; an image carrying member on which a toner image is formed with the toner; and a plurality of divided electrode portions provided at a position in which the electrode portions oppose the toner carrying member via the image carrying member interposed therebetween. The electrode portions are supplied with a voltage on the basis of image information to move the toner between the toner carrying member and the image carrying member thereby to form the toner image. The electrode portions includes a first electrode portion for forming an image portion and a second electrode portion, adjacent to the first electrode portion, for forming a non-image portion. The image forming apparatus further includes a controller for variably controlling at least one of potential differences |Vp−Vt| and |Vt−V0| depending on the image information, where a potential of the toner carrying member is Vt, a potential of the first electrode portion is Vp and a potential of the second electrode portion is V0.
摘要翻译：图像形成装置包括用于承载调色剂的调色剂承载构件; 图像承载部件，其上用调色剂形成调色剂图像; 以及设置在所述电极部分经由所述图像承载部件与所述调色剂承载部件相对的位置处的多个分开的电极部分。基于图像信息向电极部分提供电压，以便在调色剂承载构件和图像承载构件之间移动调色剂，从而形成调色剂图像。电极部分包括用于形成图像部分的第一电极部分和与第一电极部分相邻的用于形成非图像部分的第二电极部分。图像形成装置还包括用于可变地控制电位差| Vp-Vt |中的至少一个的控制器和| Vt-V0 | 取决于图像信息，调色剂承载部件的电位为Vt，第一电极部分的电位为Vp，第二电极部分的电位为V0。

23. 发明申请

US20050163523A1 Image heating apparatus and heater for use therein 有权
公开(公告)号：US20050163523A1
公开(公告)日：2005-07-28
申请号：US11038066
申请日：2005-01-21
申请人： Masahito Omata , Hisashi Nakahara , Yusuke Nakazono , Satoshi Nishida , Eiji Uekawa , Isamu Takeda , Noriyuki Ito
发明人： Masahito Omata , Hisashi Nakahara , Yusuke Nakazono , Satoshi Nishida , Eiji Uekawa , Isamu Takeda , Noriyuki Ito
IPC分类号： G03G15/20 , H05B3/00 , H05B3/03 , H05B3/12
CPC分类号： G03G15/2042 , H05B3/0095
摘要： The invention is to provide an image heating apparatus capable of preventing an excessive temperature increase in a sheet non-passing area and a heater for use in such apparatus, and the heater for use in the image heating apparatus of the invention is constructed by including: a substrate; a heat generating resistor formed on the substrate; and first and second electrodes for supplying an electric power to the heat generating resistor; wherein each of the first and second electrodes has a first area to be contacted with a power supplying connector and a second area provided at an end portion electrically opposite to the first area, the second areas are provided along a longitudinal direction of the substrate, and the heat generating resistor is so provided as to electrically connect the second area of the first electrode and the second area of the second electrode; wherein, within the second area of the first electrode, a portion electrically closest to the first area of the first electrode is provided in the vicinity of an end portion of the substrate in the longitudinal direction thereof, and within the second area of the second electrode, a portion electrically closest to the first area of the second electrode is provided in the vicinity of the other end portion of the substrate in the longitudinal direction thereof; and wherein, when the heater is at a set temperature for an image heating operation in the image heating apparatus, a resistance value Rc of the second area of either of the first and second electrodes and a resistance value Rt between a portion within the second area of the first electrode electrically closest to the first area of the first electrode and a portion within the second area of the second electrode electrically closest to the first area of the second electrode satisfy a relation: Rc/Rt≦1/30.

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