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1. 发明授权

US5550619A Electrophotographic apparatus of improved low image density 失效
标题翻译：改善低图像密度的电子照相设备
公开(公告)号：US5550619A
公开(公告)日：1996-08-27
申请号：US179590
申请日：1994-01-10
申请人： Hiroshi Komakine , Hiroshi Terada , Hajime Yamamoto , Kazumasa Hayashi , Masahiro Aizawa
发明人： Hiroshi Komakine , Hiroshi Terada , Hajime Yamamoto , Kazumasa Hayashi , Masahiro Aizawa
IPC分类号： G03G15/09 , G03G15/095 , G03G13/00
CPC分类号： B82Y15/00 , G03G15/0921 , G03G15/095 , G03G2215/0621 , G03G2215/0639
摘要： An electrophotographic apparatus includes a photoconductor drum, also known as an electrostatic latent image holding member, with a magnet placed therein. An electrostatic latent image is formed on the magnetic drum. Then, the drum is brought into contact with a magnetic developer, or toner, in a developer reservoir to have the magnetic developer attached to the photoconductor drum surface by a magnetic force. A removing roller, having an AC voltage applied thereto, is passed in close vicinity of the magnetic drum with the resultant development of images because toner remains at image areas only. In the electrophotographic apparatus, the photoconductor drum, the removing roller or both include two magnetic poles. A device for increasing friction force of the surface of the photoconductor drum, of the removing roller or both may also be provided.
摘要翻译：电子照相设备包括也称为静电潜像保持构件的感光鼓，其中放置有磁体。在磁鼓上形成静电潜像。然后，使鼓与显影剂储存器中的磁性显影剂或调色剂接触，以使磁性显影剂通过磁力附着到感光鼓表面。具有施加交流电压的去除辊由于调色剂仅留在图像区域而靠近磁鼓而导致图像的显影。在电子照相设备中，感光鼓，去除辊或两者都包括两个磁极。还可以提供用于增加感光鼓的表面，除去辊或两者的摩擦力的装置。

2. 发明授权

US5543901A Electrophotographic developing method using magnetic developing material and apparatus employed therefor 失效
标题翻译：使用磁性显影材料的电子照相显影方法及其用途
公开(公告)号：US5543901A
公开(公告)日：1996-08-06
申请号：US480079
申请日：1995-06-07
申请人： Hajime Yamamoto , Hiroshi Terada
发明人： Hajime Yamamoto , Hiroshi Terada
IPC分类号： G03G15/00 , G03G15/09 , G03G15/095 , G03G13/00
CPC分类号： B82Y15/00 , G03G15/09 , G03G15/095 , G03G15/751 , G03G2215/0621 , G03G2215/0639
摘要： An electrophotographic method and an apparatus employed for effecting the method, in which a photoreceptor drum having a fixed magnet member in it is employed. After forming an electrostatic latent image on the surface of the photoreceptor drum, the photoreceptor surface is brought into contact with the magnetic developing material within a developing material hopper so as to attract the developing material onto the surface of the photoreceptor drum by magnetic force. When the photoreceptor surface further passes an electrode roller, the toner remains only at the image portion for development into a visible toner image. As a force for removing the magnetic developing material from the photoreceptor surface, a resultant force of a magnetic force connecting the photoreceptor drum and the electrode roller and an electrostatic force connecting the photoreceptor drum and the electrode roller, is employed. Thus, the present invention provides the novel electrophotographic method and the apparatus for executing the method, which is simple in construction and a compact in size, and capable of providing images with a high resolution.
摘要翻译：用于实现该方法的电子照相方法和装置，其中使用其中具有固定磁体的感光鼓。在感光鼓的表面上形成静电潜像之后，感光体表面与显影材料料斗内的磁性显影材料接触，以便通过磁力将显影材料吸引到感光鼓的表面上。当感光体表面进一步通过电极辊时，调色剂仅保留在图像部分以显影成可见的调色剂图像。作为用于从感光体表面除去磁性显影材料的力，采用连接感光鼓和电极辊的磁力的合力以及连接感光鼓和电极辊的静电力。因此，本发明提供了一种新颖的电子照相方法和执行方法的装置，其结构简单，尺寸紧凑，并且能够提供高分辨率的图像。

3. 发明授权

US6021303A Image heating device and image forming device using the same 有权
标题翻译：图像加热装置及其使用的图像形成装置
公开(公告)号：US6021303A
公开(公告)日：2000-02-01
申请号：US309922
申请日：1999-05-11
申请人： Hiroshi Terada , Akinori Toyoda , Yoshihito Urata , Hajime Yamamoto , Nobuo Genji , Naoaki Ishimaru , Tatsuo Nakatsugawa , Masakazu Naito
发明人： Hiroshi Terada , Akinori Toyoda , Yoshihito Urata , Hajime Yamamoto , Nobuo Genji , Naoaki Ishimaru , Tatsuo Nakatsugawa , Masakazu Naito
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2039 , G03G2215/2016 , G03G2215/2029 , G03G2215/2032 , G03G2215/2035
摘要： An image heating device comprises a cylindrical heating roller with a Curie temperature of 210.degree. C., a magnetization coil for magnetizing the heating roller with an alternating magnetic field, which is arranged inside the heating roller, and a nip portion for heating a recording material that carries a toner image with heat from the heating roller, while the recording material is being conveyed along said nip portion. The ratio between the amount of heat generated in said heat-generating member at Curie temperature or higher to the amount of heat generated at room temperature in said heat-generating member is not more than 1/2. With this configuration, the heating roller can regulate its own temperature to stabilize at a temperature that is suitable for fixing, and the problems of partial overheating or underheating, unstable heat generation, or damage of the device can be eliminated.
摘要翻译：图像加热装置包括居里温度为210℃的圆柱形加热辊，设置在加热辊内部的具有交变磁场的加热辊磁化的磁化线圈和用于加热记录材料的辊隙部分其中所述记录材料沿所述压合部分输送，所述图像具有来自所述加热辊的热量的调色剂图像。所述发热元件在居里温度以上产生的热量与所述发热元件在室温下产生的热量的比率不大于+ E，（f 1/2 + EE）。利用这种构造，加热辊可以调节其自身的温度以稳定在适于固定的温度，并且可以消除部分过热或过热，不稳定的发热或器件损坏的问题。

4. 发明授权

US5610701A Color electrophotographic apparatus and image forming units used therein 失效
标题翻译：彩色电子照相设备及其中使用的图像形成单元
公开(公告)号：US5610701A
公开(公告)日：1997-03-11
申请号：US276704
申请日：1994-07-18
申请人： Hiroshi Terada , Hajime Yamamoto , Masahiko Nakamura
发明人： Hiroshi Terada , Hajime Yamamoto , Masahiko Nakamura
IPC分类号： G03G15/01
CPC分类号： G03G15/011 , G03G15/0121 , G03G15/0194 , G03G2215/0116
摘要： A color electrophotographic apparatus for forming color images has advantages of compact and simple construction, easy positioning of an exposure position and easy inspection. The apparatus includes a plurality of rotatable image forming units corresponding to the number of colors, each of the units including a pivotable photosensitive member on which a toner image is formed and a developing device containing a color toner. The apparatus further includes an exposure device for exposing a toner image by emitting a signal light from outside of the image forming units and a mirror for reflecting the signal light to an exposure position, the mirror being placed in the neighbor of a rotation axis.
摘要翻译：用于形成彩色图像的彩色电子照相设备具有结构紧凑和简单，易于定位曝光位置和容易检查的优点。该装置包括对应于颜色数量的多个可旋转图像形成单元，每个单元包括其上形成调色剂图像的可枢转感光构件和包含彩色调色剂的显影装置。该装置还包括曝光装置，用于通过从图像形成单元的外部发射信号光而使调色剂图像曝光，以及用于将信号光反射到曝光位置的反射镜，该反射镜被放置在旋转轴的相邻位置。

5. 发明授权

US5303018A Color electrophotographic apparatus 失效
标题翻译：彩色电子照相设备
公开(公告)号：US5303018A
公开(公告)日：1994-04-12
申请号：US79881
申请日：1993-06-23
申请人： Hiroshi Terada , Hajime Yamamoto
发明人： Hiroshi Terada , Hajime Yamamoto
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/0163 , G03G2215/0112
摘要： A color electrophotographic apparatus arranged as follows is disclosed. A plurality of image forming units (1BK, 1C, 1M, 1Y) each including a developing device having an electrostatic latent image holding member and toner of a different color are employed. Each of the image forming units is arranged to be displaceable so as to be moved to the same image forming position for positioning. At the image forming position, the image forming unit is exposed to light image by an exposure device for image formation, with its toner image being transferred onto a transfer material through a confronting transfer transport device. The image forming unit at the image forming position is sequentially exchanged, and by the reciprocation of the transfer material through the transfer/transport device, toner images of respective colors are transferred as overlapped through positioning for coincidence, onto the same transfer material.
摘要翻译：公开了如下布置的彩色电子照相设备。使用包括具有静电潜像保持部件的显影装置和不同颜色的调色剂的多个图像形成单元（1BK，1C，1M，1Y）。每个图像形成单元布置成可移动，以便移动到用于定位的相同图像形成位置。在图像形成位置，图像形成单元通过用于图像形成的曝光装置暴露于光图像，其调色剂图像通过面对的转印输送装置转印到转印材料上。图像形成单元在图像形成位置被顺序地更换，并且通过转印/输送装置的转印材料的往复运动，各种颜色的调色剂图像被重叠地转印到相同的转印材料上。

6. 发明授权

US5298949A Method and apparatus for removing a portion of a developing material deposited on a non-image area of a surface of a latent image carrier 失效
标题翻译：用于去除沉积在潜像载体的表面的非图像区域上的显影材料的一部分的方法和装置
公开(公告)号：US5298949A
公开(公告)日：1994-03-29
申请号：US868338
申请日：1992-04-14
申请人： Hajime Yamamoto , Hiroshi Terada
发明人： Hajime Yamamoto , Hiroshi Terada
IPC分类号： G03G15/08 , G03G15/09 , G03G15/095 , G03G13/00
CPC分类号： G03G15/08 , G03G15/09 , G03G15/095 , G03G2215/0621 , G03G2215/0639
摘要： An electrophotographic apparatus has a photoreceptor drum supported for rotation in one direction sequentially past a plurality of processing stations, a corona charger for electrostatically charging the photoreceptor drum, a developer hopper accommodating therein a mass of developing material used to form a visible toner image and a transfer charger for transferring the toner image onto a recording paper. The developer hopper has its bottom portion formed with an opening open so as to accommodate a portion of the photoreceptor drum, so that the developing material can be electrostatically deposited on the photoreceptor drum, including both non-image and image areas, to form a toner layer. The apparatus also includes an electrode member operable to electrostatically remove a portion of the toner layer covering the non-image area, thereby leaving the remaining portion of the toner layer in the image area to form the visible toner image.
摘要翻译：电子照相设备具有一个感光鼓，该感光鼓被支撑成一个方向上顺序地经过多个处理站，用于静电充电感光鼓的电晕充电器，容纳有用于形成可见调色剂图像的显影材料块的显影剂料斗，转印充电器，用于将调色剂图像转印到记录纸上。显影剂料斗的底部形成有开口，以便容纳感光鼓的一部分，使得显影材料可以静电沉积在感光鼓上，包括非图像和图像区域，以形成调色剂层。该装置还包括电极部件，其可操作以静电去除覆盖非图像区域的调色剂层的一部分，从而使得图像区域中的调色剂层的剩余部分形成可见的调色剂图像。

7. 发明授权

US5282012A Color electronic photographic apparatus with multiple image forming units 失效
标题翻译：具有多个成像单元的彩色电子摄影装置
公开(公告)号：US5282012A
公开(公告)日：1994-01-25
申请号：US952996
申请日：1992-09-29
申请人： Hiroshi Terada , Hajime Yamamoto
发明人： Hiroshi Terada , Hajime Yamamoto
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/0121 , G03G15/0194 , G03G15/0163 , G03G2215/0112
摘要： A color electronic photographic apparatus includes plurality of image forming units, each having a different electrostatic carrier and a different colored toner. Each of the image forming units can be moved to the same image forming position when exposed to light by a light exposing mechanism at the image forming position so as to effect an image forming operation, so that toner images are individually transferred onto a transfer material. In the color electronic photographic apparatus, the image forming units are sequentially moved into the image forming position, and also, the transfer material is reciprocated by the transfer carrying device so that the toner images of each color are properly superposed on the same transfer material.
摘要翻译：彩色电子摄影装置包括多个图像形成单元，每个图像形成单元具有不同的静电载体和不同的着色调色剂。当图像形成位置处的光曝光机构暴露于光时，每个图像形成单元可以移动到相同的图像形成位置，以便进行图像形成操作，使得调色剂图像被单独转印到转印材料上。在彩色电子摄影装置中，图像形成单元顺序地移动到图像形成位置，并且转印材料也通过转印装置往复运动，使得每种颜色的调色剂图像被适当地重叠在相同的转印材料上。

8. 再颁专利

USRE38810E1 Image heating device and image forming device using the same 有权
标题翻译：图像加热装置及其使用的图像形成装置
公开(公告)号：USRE38810E1
公开(公告)日：2005-10-04
申请号：US10066035
申请日：2002-02-01
申请人： Hiroshi Terada , Akinori Toyoda , Yoshihito Urata , Hajime Yamamoto , Nobuo Genji , Naoaki Ishimaru , Tatsuo Nakatsugawa , Masakazu Naito
发明人： Hiroshi Terada , Akinori Toyoda , Yoshihito Urata , Hajime Yamamoto , Nobuo Genji , Naoaki Ishimaru , Tatsuo Nakatsugawa , Masakazu Naito
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2039 , G03G2215/2016 , G03G2215/2029 , G03G2215/2032 , G03G2215/2035
摘要： An image heating device comprises a cylindrical heating roller with a Curie temperature of 210° C., a magnetization coil for magnetizing the heating roller with an alternating magnetic field, which is arranged inside the heating roller, and a nip portion for heating a recording material that carriers a toner image with heat from the heating roller, while the recording material is being conveyed along said nip portion. The ratio between the amount of heat generated in said heat-generating member at Curie temperature or higher to the amount of heat generated at room temperature in said heat-generating member is not more than ½. With this configuration, the heating roller can regulate its own temperature to stabilize at a temperature that is suitable for fixing, and the problems of partial overheating or underheating, unstable heat generation, or damage of the device can be eliminated.
摘要翻译：图像加热装置包括居里温度为210℃的圆柱形加热辊，设置在加热辊内部的用于使加热辊磁化的交变磁场的磁化线圈和用于加热记录材料的辊隙部分其中记录材料沿着所述夹持部分被输送，所述图像从加热辊承载着具有热量的调色剂图像。所述发热元件在居里温度以上产生的热量与所述发热元件在室温下产生的热量之比不大于1/2。利用这种构造，加热辊可以调节其自身的温度以稳定在适于固定的温度，并且可以消除部分过热或过热，不稳定的发热或器件损坏的问题。

9. 发明授权

US5956552A Color image forming apparatus comprising a regular mode and a high speed mode 失效
标题翻译：彩色图像形成装置包括常规模式和高速模式
公开(公告)号：US5956552A
公开(公告)日：1999-09-21
申请号：US043549
申请日：1998-03-19
申请人： Noboru Katakabe , Hiroshi Terada , Hajime Yamamoto , Masanori Yoshikawa , Kenji Asakura
发明人： Noboru Katakabe , Hiroshi Terada , Hajime Yamamoto , Masanori Yoshikawa , Kenji Asakura
IPC分类号： G03G15/01
CPC分类号： G03G15/0194 , G03G15/0121 , G03G2215/0116
摘要： In a color image forming apparatus, a plurality of image forming units 3Y, 3M, 3C and 3K, which correspond to a plurality of colors and with each unit including a developing device and a photosensitive drum, are retained so as to define a cylinder. The color image forming apparatus includes: a conveying apparatus for conveying the plurality of image forming units around the main axis of the cylinder between an image forming position and a waiting position by simultaneously rotating all image forming units; an exposing device 6 for exposure of the photosensitive drum of the image forming unit that is in the image forming position 10; a transfer apparatus 5, which contacts a transfer belt 50 with the photosensitive drum 30 of the image forming unit that is in the image forming position, and when the image forming unit that is in the image forming position is switched, successively transcribes the toner images of all colors formed on the photosensitive drums onto the transfer belt, superimposes the toner images of all colors and forms a colored toner image on the transfer belt; and a transfer belt driving apparatus for driving the transfer belt at a constant speed. When a second color image is formed after a first color image, the first toner image color of the second color image is formed on the transfer belt by using the image forming unit of the last color added to the first color image. The exposing device includes a light source accommodated by the inner portion of the cylinder defined by the image forming units.
摘要翻译： PCT No.PCT / JP97 / 03349 Sec。 371日期：1998年3月19日 102（e）1998年3月19日PCT PCT 1997年9月22日PCT公布。第WO98 / 13732号公报日期：1998年4月2日在彩色图像形成装置中，与多种颜色对应的多个图像形成单元3Y，3M，3C和3K以及包括显影装置和感光鼓的每个单元被保持为定义一个圆柱体。彩色图像形成装置包括：传送装置，用于通过同时旋转所有图像形成单元在图像形成位置和等待位置之间传送多个图像形成单元围绕圆筒的主轴线; 用于曝光图像形成单元的图像形成位置10中的感光鼓的曝光装置6; 与转印带50接触的转印装置5与图像形成单元的感光鼓30处于图像形成位置，并且当图像形成单元处于图像形成位置时，转印装置5依次转印调色剂图像将形成在感光鼓上的所有颜色的所有颜色转印到转印带上，将所有颜色的调色剂图像叠加并在转印带上形成着色调色剂图像; 以及用于以恒定速度驱动转印带的转印带驱动装置。当在第一彩色图像之后形成第二彩色图像时，通过使用添加到第一彩色图像的最后一个颜色的图像形成单元，在转印带上形成第二彩色图像的第一调色剂图像颜色。曝光装置包括由图像形成单元限定的圆筒的内部容纳的光源。

10. 发明授权

US5488465A Electrophotographic developing method using magnetic developing material and apparatus employed therefor 失效
标题翻译：使用磁性显影材料的电子照相显影方法及其用途
公开(公告)号：US5488465A
公开(公告)日：1996-01-30
申请号：US919905
申请日：1992-07-27
申请人： Hajime Yamamoto , Hiroshi Terada
发明人： Hajime Yamamoto , Hiroshi Terada
IPC分类号： G03G15/00 , G03G15/09 , G03G15/095 , G03G13/00
CPC分类号： B82Y15/00 , G03G15/09 , G03G15/095 , G03G15/751 , G03G2215/0621 , G03G2215/0639
摘要： An electrophotographic method, and an apparatus for performing the method, which is simple in construction, compact in size, and capable of providing images with a high resolution employs the use of a photoreceptor drum having a fixed magnet member therein. After forming an electrostatic latent image on the surface of the photoreceptor drum, the photoreceptor surface is placed in contact with magnetic developing material within a developing material hopper so as to attract the developing material onto the surface of the photoreceptor drum by magnetic force. When the photoreceptor surface further passes an electrode roller, the toner remains only at the image portion for development into a visible toner image. To remove the magnetic developing material from the photoreceptor surface, a magnetic force connecting the photoreceptor drum and the electrode roller and an electrostatic force connecting the photoreceptor drum and the electrode roller are employed.
摘要翻译：一种电子照相方法和一种执行该方法的装置，其结构简单，体积小巧，并且能够提供高分辨率的图像使用其中具有固定磁体的感光鼓。在感光鼓的表面上形成静电潜像之后，将感光体表面与显影材料料斗内的磁性显影材料接触，以便通过磁力将显影材料吸引到感光鼓的表面上。当感光体表面进一步通过电极辊时，调色剂仅保留在图像部分以显影成可见的调色剂图像。为了从感光体表面去除磁性显影材料，采用连接感光鼓和电极辊的磁力以及连接感光鼓和电极辊的静电力。

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