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1. 发明授权

US07031641B2 Image-forming apparatus having pre-charge exposure device for image carrier 失效
标题翻译：图像形成装置具有用于图像载体的预充电曝光装置
公开(公告)号：US07031641B2
公开(公告)日：2006-04-18
申请号：US10835303
申请日：2004-04-28
申请人： Hisashi Nakahara , Yasunori Chigono , Yasuhiro Nakata
发明人： Hisashi Nakahara , Yasunori Chigono , Yasuhiro Nakata
IPC分类号： G03G21/00 , G03G15/24
CPC分类号： G03G15/0225 , G03G2221/0005
摘要： An image-forming apparatus includes a pre-charge exposure device which removes electric charge from a photoconductor drum to increase a potential contrast between the surface of the photoconductor drum and the surface of a charge roller in an upstream region of a nip region between the photoconductor drum and the charge roller in the rotating direction of the photoconductor drum, so that toner accumulating in an upstream region of the nip region in the rotating direction of the photoconductor drum is restrained and prevented from being discharged onto an image-forming region. When the toner accumulating in the upstream region of the nip region in the rotating direction of the photoconductor drum is to be discharged onto a non-image-forming region, the pre-charge exposure device is turned off so that the potential contrast decreases.
摘要翻译：图像形成装置包括预充电曝光装置，其从感光鼓移除电荷，以增加感光鼓的表面与感光鼓之间的压区的上游区域中的充电辊的表面之间的潜在对比度鼓和充电辊在感光鼓的旋转方向上，使得在感光鼓的旋转方向上积聚在夹持区域的上游区域中的调色剂被抑制并防止被排出到图像形成区域。当在感光鼓的旋转方向上积聚在夹持区域的上游区域中的调色剂被排出到非图像形成区域时，预充电曝光装置被关闭，使得电位对比度降低。

2. 发明授权

US07020407B2 Transferring apparatus with two or more voltage output modes 有权
标题翻译：具有两个或多个电压输出模式的传输设备
公开(公告)号：US07020407B2
公开(公告)日：2006-03-28
申请号：US10778064
申请日：2004-02-17
申请人： Yasuhiro Nakata , Hisashi Nakahara
发明人： Yasuhiro Nakata , Hisashi Nakahara
IPC分类号： G03G15/16
CPC分类号： G03G15/1675
摘要： To provide a transferring apparatus, it is possible to perform switching between a high mode and a low mode in a transfer voltage generator circuit of a transferring apparatus by using a microcomputer. The high mode is a mode in which a positive transfer voltage generator circuit is operated independently, and a voltage generated by the positive transfer voltage generator circuit is output as a transfer voltage. The low mode is a mode in which the positive transfer voltage generator circuit and a negative transfer voltage generator circuit are both operated, and the voltages generated by each of the circuits are superimposed and output as the transfer voltage.
摘要翻译：为了提供传送装置，可以通过使用微型计算机在传送装置的传送电压发生器电路中进行高模式和低模式之间的切换。高模式是其中正转移电压发生器电路独立操作并且由正转移电压发生器电路产生的电压作为转移电压被输出的模式。低模式是正转印电压发生器电路和负转印电压发生器电路都被操作的模式，并且由每个电路产生的电压被叠加并作为转印电压输出。

3. 发明申请

US20120020709A1 IMAGE HEATING DEVICE AND PRESSING ROLLER FOR USE WITH THE IMAGE HEATING DEVICE 有权
标题翻译：图像加热装置和压辊用于图像加热装置
公开(公告)号：US20120020709A1
公开(公告)日：2012-01-26
申请号：US13186546
申请日：2011-07-20
申请人： Koji Uchiyama , Hisashi Nakahara , Yutaka Sato
发明人： Koji Uchiyama , Hisashi Nakahara , Yutaka Sato
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2057
摘要： An image heating device for heating a toner image while nip-conveying a recording material, in a nip, on which the toner image is carried, includes a heating member; and a pressing roller, including an elastic layer, for forming the nip in contact with the heating member. The elastic layer of the pressing roller includes a thermosetting silicon rubber containing a thermal conductive filler. The thermosetting silicon rubber includes pore portions formed with resin microballoons and a pore connecting portion for connecting the pore portions. The elastic layer has a thermal conductivity of 0.15 W/mK to 0.5 W/mK.
摘要翻译：一种图像加热装置，用于加热调色剂图像，同时在其上承载有调色剂图像的辊隙中夹持记录材料，包括加热构件; 以及包括弹性层的加压辊，用于形成与加热构件接触的辊隙。加压辊的弹性层包括含有导热填料的热固性硅橡胶。热固性硅橡胶包括由树脂微球形成的孔部分和用于连接孔部分的孔连接部分。弹性层的导热率为0.15W / mK〜0.5W / mK。

4. 发明授权

US06424814B1 Image forming apparatus using shaped toner particles and transfer roller pressure for fine image quality 有权
公开(公告)号：US06424814B1
公开(公告)日：2002-07-23
申请号：US09789637
申请日：2001-02-22
申请人： Yasumasa Otsuka , Daizo Fukuzawa , Hisashi Nakahara
发明人： Yasumasa Otsuka , Daizo Fukuzawa , Hisashi Nakahara
IPC分类号： G03G1516
摘要： An image forming apparatus is disclosed in which a specific toner is used, and a transferring means has a transfer roller which is in contact with the surface of an electrostatic image bearing member and rotates when the electrostatic image bearing member rotates. The toner is comprised of particles which have a weight average particle diameter of 4 to 12 &mgr;m, and in a circularity distribution for particles 3 &mgr;m or more in circle-equivalent diameter which are included in the toner, particles having a circularity of 0.90 or more account for 90% by number or more.

5. 发明授权

US09110416B2 Image heating device and pressing roller for use with the image heating device 有权
标题翻译：图像加热装置和加压辊用于图像加热装置
公开(公告)号：US09110416B2
公开(公告)日：2015-08-18
申请号：US13186546
申请日：2011-07-20
申请人： Koji Uchiyama , Hisashi Nakahara , Yutaka Sato
发明人： Koji Uchiyama , Hisashi Nakahara , Yutaka Sato
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2057
摘要： An image heating device for heating a toner image while nip-conveying a recording material, in a nip, on which the toner image is carried, includes a heating member; and a pressing roller, including an elastic layer, for forming the nip in contact with the heating member. The elastic layer of the pressing roller includes a thermosetting silicon rubber containing a thermal conductive filler. The thermosetting silicon rubber includes pore portions formed with resin microballoons and a pore connecting portion for connecting the pore portions. The elastic layer has a thermal conductivity of 0.15 W/mK to 0.5 W/mK.
摘要翻译：一种图像加热装置，用于加热调色剂图像，同时在其上承载有调色剂图像的辊隙中夹持记录材料，包括加热构件; 以及包括弹性层的加压辊，用于形成与加热构件接触的辊隙。加压辊的弹性层包括含有导热填料的热固性硅橡胶。热固性硅橡胶包括由树脂微球形成的孔部分和用于连接孔部分的孔连接部分。弹性层的导热率为0.15W / mK〜0.5W / mK。

6. 发明申请

US20120294641A1 IMAGE HEATING APPARATUS 有权
标题翻译：图像加热装置
公开(公告)号：US20120294641A1
公开(公告)日：2012-11-22
申请号：US13471927
申请日：2012-05-15
申请人： Hisashi Nakahara , Kentaro Yamashita
发明人： Hisashi Nakahara , Kentaro Yamashita
IPC分类号： G03G15/20
CPC分类号： G03G15/205 , H05B3/0095 , H05B3/141 , H05B2203/013
摘要： An image heating apparatus for heating a toner image in a nip while conveying a recording material on which the toner image is held is provided. The image heating apparatus includes a heater for generating heat by being supplied with electric power from an AC power source; a rotatable heating member for being heated by the heater; a pressing member for forming the nip in contact to the rotatable heating member; a temperature detecting portion for detecting a temperature of the heater or the rotatable heating member; and a controller for setting the electric power supplied to the heater every renewal cycle depending on a detected temperature by the temperature detecting portion. The renewal cycle is shorter in a rise period of the heater than in a period in which the recording material is conveyed in the nip.
摘要翻译：提供一种图像加热装置，用于在传送保持调色剂图像的记录材料的同时加热辊隙中的调色剂图像。图像加热装置包括：加热器，用于通过从交流电源供给电力产生热量; 用于被加热器加热的可旋转加热构件; 用于形成与所述可旋转加热构件接触的压区的按压构件; 用于检测加热器或可旋转加热构件的温度的温度检测部分; 以及控制器，用于根据所述温度检测部分的检测温度来设置供应给所述加热器的电力。加热器的上升期间的更新周期比在辊隙中记录材料输送的期间短。

7. 发明申请

US20120183336A1 IMAGE HEATING APPARATUS 有权
标题翻译：图像加热装置
公开(公告)号：US20120183336A1
公开(公告)日：2012-07-19
申请号：US13429006
申请日：2012-03-23
申请人： Hisashi Nakahara , Goichi Kitadai , Yoshihiro Matsuo , Yoji Tomoyuki , Takahiro Uchiyama , Koji Uchiyama
发明人： Hisashi Nakahara , Goichi Kitadai , Yoshihiro Matsuo , Yoji Tomoyuki , Takahiro Uchiyama , Koji Uchiyama
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2035
摘要： The present invention relates to an image heating apparatus in which a nip portion is formed by a heating unit, which includes a flexible sleeve and a heater, and a pressure roller. The position of the heating unit is appropriately maintained by pressing the heating unit against the pressure roller using a pressure member so that the heating unit can contact two or more portions of a downstream side rim of a groove arranged on a frame that holds the heating unit, even when the pressure roller is rotated.
摘要翻译：本发明涉及一种图像加热装置，其中夹持部由包括柔性套管和加热器的加热单元以及加压辊形成。加热单元的位置适当地通过使用加压构件将加热单元压靠压力辊来保持，使得加热单元可以接触布置在保持加热单元的框架上的凹槽的下游侧边缘的两个或更多个部分即使当压力辊旋转时。

8. 发明授权

US07953359B2 Apparatus for heating an image formed on a recording material 失效
标题翻译：用于加热形成在记录材料上的图像的装置
公开(公告)号：US07953359B2
公开(公告)日：2011-05-31
申请号：US11302328
申请日：2005-12-14
申请人： Shinsuke Kobayashi , Akira Kato , Akira Hayakawa , Kenichi Ogawa , Hisashi Nakahara , Tatsuo Nishiyama
发明人： Shinsuke Kobayashi , Akira Kato , Akira Hayakawa , Kenichi Ogawa , Hisashi Nakahara , Tatsuo Nishiyama
IPC分类号： G03G15/20
CPC分类号： G03G21/1685
摘要： An image heating apparatus for heating an image formed on a recording material, including a heating unit having a heater and a flexible sleeve to be rotated in contact with the heater; an elastic roller for constituting a nip portion, in cooperation with the heater and through the flexible sleeve, for heating the recording material under pinching and conveying; and a frame having a roller supporting portion for supporting the heating unit and the elastic roller; wherein the frame has a guide portion for mounting the heating unit on the frame; and the roller supporting portion of the frame is positioned, in a conveying direction of the recording material, in a downstream position of an imaginary line passing through a center of the guide portion.
摘要翻译：一种用于加热形成在记录材料上的图像的图像加热装置，包括具有加热器的加热单元和与加热器接触旋转的柔性套管; 与加热器配合并通过柔性套筒构成夹持部的弹性辊，用于在夹持和输送下加热记录材料; 以及框架，其具有用于支撑所述加热单元和所述弹性辊的辊支撑部; 其中所述框架具有用于将所述加热单元安装在所述框架上的引导部分; 并且框架的辊支撑部分在记录材料的传送方向上定位在穿过引导部分的中心的假想线的下游位置。

9. 发明申请

US20060133868A1 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US20060133868A1
公开(公告)日：2006-06-22
申请号：US11302328
申请日：2005-12-14
申请人： Shinsuke Kobayashi , Akira Kato , Akira Hayakawa , Kenichi Ogawa , Hisashi Nakahara , Tatsuo Nishiyama
发明人： Shinsuke Kobayashi , Akira Kato , Akira Hayakawa , Kenichi Ogawa , Hisashi Nakahara , Tatsuo Nishiyama
IPC分类号： G03G15/20
CPC分类号： G03G21/1685
摘要： An image heating apparatus for heating an image formed on a recording material, including a heating unit having a heater and a flexible sleeve to be rotated in contact with the heater; an elastic roller for constituting a nip portion, in cooperation with the heater and through the flexible sleeve, for heating the recording material under pinching and conveying; and a frame having a roller supporting portion for supporting the heating unit and the elastic roller; wherein the frame has a guide portion for mounting the heating unit on the frame; and the roller supporting portion of the frame is positioned, in a conveying direction of the recording material, in a downstream position of an imaginary line passing through a center of the guide portion.
摘要翻译：一种用于加热形成在记录材料上的图像的图像加热装置，包括具有加热器的加热单元和与加热器接触旋转的柔性套筒; 与加热器配合并通过柔性套筒构成夹持部的弹性辊，用于在夹持和输送下加热记录材料; 以及框架，其具有用于支撑所述加热单元和所述弹性辊的辊支撑部; 其中所述框架具有用于将所述加热单元安装在所述框架上的引导部分; 并且框架的辊支撑部分在记录材料的传送方向上定位在穿过引导部分的中心的假想线的下游位置。

10. 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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