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21. 发明授权

US11640124B2 Developing device and image forming apparatus incorporating same 有权
公开(公告)号：US11640124B2
公开(公告)日：2023-05-02
申请号：US17460323
申请日：2021-08-30
申请人： Kentarou Matsumoto , Yuki Oshikawa
发明人： Kentarou Matsumoto , Yuki Oshikawa
IPC分类号： G03G15/08 , G03G15/30 , G03G15/16
摘要： A developing device includes a developing roller, a developing case, and a support. The developing roller includes a sleeve and a magnetic field generator. The sleeve is rotatable and includes a hollow shaft at an axial end of the sleeve. The magnetic field generator is irrotationally disposed inside the sleeve and includes a non-rotating shaft at an axial end of the magnetic field generator. The non-rotating shaft penetrates through the hollow shaft and projects outward. The developing case is configured to store developer and rotatably supports the hollow shaft. The support includes a fitting portion into which the non-rotating shaft of the magnetic field generator is irrotationally fitted. The support is supported on the developing case using the fitting portion as a main-positioning portion.

22. 外观设计

USD667047S1 Powder container 有权
标题翻译：粉末容器
公开(公告)号：USD667047S1
公开(公告)日：2012-09-11
申请号：US29398651
申请日：2011-08-03
申请人： Yuki Oshikawa , Hideo Yoshizawa
设计人： Yuki Oshikawa , Hideo Yoshizawa

23. 发明申请

US20080310865A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080310865A1
公开(公告)日：2008-12-18
申请号：US12138802
申请日：2008-06-13
申请人： Mugijirou UNO , Sadayuki Iwai , Yuki Oshikawa
发明人： Mugijirou UNO , Sadayuki Iwai , Yuki Oshikawa
IPC分类号： G03G15/08
CPC分类号： G03G15/5008 , G03G15/0822 , G03G21/0011 , G03G2215/0129 , G03G2215/0822 , G03G2215/0888
摘要： An image forming apparatus includes an image carrying member, a development unit, a first driving unit, a second driving unit, and a cleaning blade. The image carrying member forms a latent image thereon. The development unit develops the latent image formed on the image carrying member. The first driving unit drives the image carrying member. The second driving unit drives the development unit. The cleaning blade, contactable against the image carrying member, removes materials including toner remaining on the image carrying member. When an agent-empty development unit is filled with a developing agent, the second driving unit is activated to start a driving of the development unit, and the first driving unit is activated to start a driving of the image carrying member after starting a developing agent filling operation to the development unit.
摘要翻译：图像形成装置包括图像承载构件，显影单元，第一驱动单元，第二驱动单元和清洁刮板。图像承载部件在其上形成潜像。显影单元显影形成在图像承载构件上的潜像。第一驱动单元驱动图像承载构件。第二驱动单元驱动开发单元。与图像承载构件可接触的清洁刮板除去包括保留在图像承载构件上的调色剂的材料。当代理空的显影单元填充有显影剂时，第二驱动单元被激活以开始显影单元的驱动，并且启动显影剂之后第一驱动单元被激活以启动图像承载构件的驱动填充操作到开发单元。

24. 发明申请

US20080240792A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：US20080240792A1
公开(公告)日：2008-10-02
申请号：US12042848
申请日：2008-03-05
申请人： Emi Kita , Koichi Kato , Kiyonori Tsuda , Yuki Oshikawa , Susumu Tateyama , Yoshitaka Fujinuma
发明人： Emi Kita , Koichi Kato , Kiyonori Tsuda , Yuki Oshikawa , Susumu Tateyama , Yoshitaka Fujinuma
IPC分类号： G03G15/095
CPC分类号： G03G15/0887 , G03G15/0893 , G03G2215/0838
摘要： A developing device capable of preventing deterioration of the image quality, which is caused when a developer recovered by a developing roller re-adheres thereto, and an image forming apparatus equipped with the developing device. The developer conveyance amount on the upstream side of an agitation conveyance path in a developer conveyance direction becomes larger than the amount of developer to be transported from a recovery conveyance path to the agitation conveyance path, by making the developer conveyance amount on the upstream side of an agitating screw in the developer conveyance direction equal to or larger than the developer conveyance amount on the downstream side of a recovery screw in the developer conveyance direction. Accordingly, the amount of developer existing on the upstream side of the agitation conveyance path in the developer conveyance direction becomes small, whereby the developer can be delivered smoothly from the recovery conveyance path to the agitation conveyance path. Therefore, the bulk of the developer existing on the downstream side of the recovery conveyance path in the developer conveyance direction can be prevented from reaching the level where the recovered developer re-adheres to a developing roller, and further the developer existing on the downstream side of the recovery conveyance path in the developer conveyance direction can be prevented from re-adhering to the developing roller.
摘要翻译：一种能够防止由显影辊回收的显影剂重新附着的显影剂的图像质量劣化的显影装置和配备有显影装置的图像形成装置。在显影剂输送方向上的搅拌输送路径的上游侧的显影剂输送量比通过将回收输送路径向搅拌输送路径输送的显影剂的量变大，显影剂输送方向上的搅拌螺杆等于或大于在显影剂输送方向上的回收螺杆的下游侧的显影剂输送量。因此，显影剂输送方向上的搅拌输送路的上游侧的显影剂的量变小，能够使显影剂从回收输送路径平稳地输送到搅拌输送路径。因此，可以防止在显影剂输送方向上在回收输送路径的下游侧存在的显影剂的体积达到恢复的显影剂重新粘附到显影辊的水平，并且进一步存在于下游侧的显影剂可以防止显影剂传送方向上的恢复传送路径再次粘附到显影辊上。

25. 发明授权

US11086251B2 Image forming apparatus including control circuitry to execute a warm-up operation 有权
公开(公告)号：US11086251B2
公开(公告)日：2021-08-10
申请号：US16579882
申请日：2019-09-24
申请人： Ryusuke Mase , Yoshihiro Fujiwara , Yuki Oshikawa , Naohiro Kawashima , Yuuki Tsuchiya
发明人： Ryusuke Mase , Yoshihiro Fujiwara , Yuki Oshikawa , Naohiro Kawashima , Yuuki Tsuchiya
IPC分类号： G03G15/08
摘要： An image forming apparatus includes a developing device including at least one stirring rotator configured to stir a developer in the developing device, a driver configured to drive the at least one stirring rotator in forward and reverse rotation, a device detector configured to detect whether the developing device is set in the image forming apparatus, and control circuitry configured to execute a warm-up operation. In the warm-up operation, the driver drives the at least one stirring rotator alternately in the reverse rotation and the forward rotation in response to a detection of setting of the developing device in the image forming apparatus by the device detector and a detection of a predetermined condition.

26. 发明授权

US09772579B2 Developing device and image forming apparatus incorporating same 有权
公开(公告)号：US09772579B2
公开(公告)日：2017-09-26
申请号：US15394992
申请日：2016-12-30
申请人： Yuki Oshikawa , Akira Azami , Yoshiko Ogawa , Masaaki Yamada , Yoshihiro Fujiwara , Noriyuki Kimura , Yoshiharu Kishi , Yasunobu Shimizu , Junichi Matsumoto , Yoshiyuki Fukuda , Yuuji Ishikura , Kei Saito
发明人： Yuki Oshikawa , Akira Azami , Yoshiko Ogawa , Masaaki Yamada , Yoshihiro Fujiwara , Noriyuki Kimura , Yoshiharu Kishi , Yasunobu Shimizu , Junichi Matsumoto , Yoshiyuki Fukuda , Yuuji Ishikura , Kei Saito
IPC分类号： G03G15/08
CPC分类号： G03G15/0812 , G03G15/0893 , G03G15/09 , G03G2215/0132 , G03G2215/0838
摘要： A developing device includes a developer bearer disposed facing a latent image bearer in a developing range to transport developer by rotation, a support to support the developer bearer and including a holder mount, a rod-shaped developer regulator disposed facing a surface of the developer bearer across a gap, and a holder secured to the holder mount of the support to hold the rod-shaped developer regulator. The rod-shaped developer regulator extends in an axial direction of the developer bearer.

27. 发明授权

US09170530B2 Powder container and image forming apparatus incorporating same 有权
标题翻译：粉末容器和包含其的图像形成装置
公开(公告)号：US09170530B2
公开(公告)日：2015-10-27
申请号：US13157796
申请日：2011-06-10
申请人： Yuki Oshikawa , Yuuki Satoh , Takuya Seshita , Toshiki Hayashi , Masashi Nagayama , Hiroyuki Uenishi , Tomoji Ishikawa
发明人： Yuki Oshikawa , Yuuki Satoh , Takuya Seshita , Toshiki Hayashi , Masashi Nagayama , Hiroyuki Uenishi , Tomoji Ishikawa
IPC分类号： G03G15/06 , G03G15/08
CPC分类号： G03G15/0879 , G03G15/087 , G03G15/0872
摘要： A powder container includes a cylindrical container body to contain a powder, having an opening in one end thereof, to convey the powder contained in the container body to the opening with rotation of the container body, and having a container-body projection provided on an outer circumferential surface of the container body; and a cylindrical holder, into which the end of the container body having the opening is inserted, to hold the container body rotatably, having a powder outlet through which the powder is discharged from the holder and a holder projection provided on an inner circumferential surface thereof. The container-body projection repetitively contacts and separates from the holder projection with rotation of the container body to vibrate the container body and the holder.
摘要翻译：一种粉末容器，包括一个容纳一个粉末的圆柱形容器体，在其一端具有一个开口，用容器主体的旋转将包含在容器主体中的粉末输送到开口上，并且具有设置在容器主体上的容器体突起容器主体的外周面; 以及具有开口的容器主体的端部插入其中的筒状保持器，以可旋转地保持容器主体，具有粉末出口，粉末通过该出口从保持器排出;以及保持器突起，其设置在其内周面上。容器体突起随着容器主体的旋转重复地与保持器突起接触并分离，从而使容器主体和保持器振动。

28. 发明授权

US08755721B2 Powder container, powder supply assembly, and image forming apparatus in which a powder outlet faces in an opposite direction as an opening of a container body 有权
标题翻译：粉末容器，粉末供给组件和成像装置，其中粉末出口在与容器主体的开口相反的方向上面对
公开(公告)号：US08755721B2
公开(公告)日：2014-06-17
申请号：US13075641
申请日：2011-03-30
申请人： Yuki Oshikawa , Emi Kita
发明人： Yuki Oshikawa , Emi Kita
IPC分类号： G03G15/08
CPC分类号： G03G21/1875 , G03G15/0863 , G03G15/087 , G03G15/0872 , G03G15/0886 , G03G2215/0665 , G03G2215/0668 , G03G2215/0692 , G03G2221/1654
摘要： A powder container includes a powder containing compartment having a powder outlet connectable to a horizontally extending tube of an apparatus in conjunction with installation of the powder container in the apparatus, a removably insertable plug member to open and close the powder outlet in conjunction with installation of the powder container, and at least one discrimination protrusion projecting from an outer circumferential surface of the powder container. The powder contained in the powder containing compartment is discharged from the powder outlet thereof to the tube. A downstream end of the discrimination protrusion is positioned downstream from a downstream end of the powder outlet of the powder containing compartment in an installation direction in which the powder container is installed in the apparatus, and at least one of shape, arrangement, and quantity of the discrimination protrusion is unique to the type of powder contained in the powder container.
摘要翻译：粉末容器包括粉末容纳室，粉末出口可与装置的水平延伸的管连接，将粉末容器安装在设备中，可拆卸地插入的插塞构件，用于打开和关闭粉末出口，同时安装粉末容器以及从粉末容器的外周面突出的至少一个识别突起。包含在含粉末容纳室中的粉末从其粉末出口排出到管中。识别突起的下游端在粉末容器安装在装置中的安装方向上位于粉末容纳室的粉末出口的下游端的下游，并且至少一种形状，布置和数量识别突起对于粉末容器中所含的粉末的类型是独特的。

29. 外观设计

USD667048S1 Powder container 有权
公开(公告)号：USD667048S1
公开(公告)日：2012-09-11
申请号：US29398663
申请日：2011-08-03
申请人： Yuki Oshikawa
设计人： Yuki Oshikawa

30. 发明授权

US07773920B2 Toner drop suppressing developing apparatus 有权
标题翻译：调色剂抑制显影装置
公开(公告)号：US07773920B2
公开(公告)日：2010-08-10
申请号：US11772399
申请日：2007-07-02
申请人： Yuki Oshikawa
发明人： Yuki Oshikawa
IPC分类号： G03G15/08
CPC分类号： G03G15/0942 , G03G2215/0609 , G03G2215/0813
摘要： A developing apparatus includes a non-magnetic sleeve installing a magnetic field creating device, a developer carrier that carries and conveys developer including magnetic carrier and toner, and a development casing that contains developer. The development casing includes an opening that allows the developer carrier to be partially exposed and oppose a latent image carrier. The surface of the developer carrier vertically moves in the opening. An angle (θ) between an inner wall surface of the development casing, located in the vicinity of opening on the down stream side and the horizontal plane, meets the following relation, wherein μ represents a static friction coefficient of the inner wall surface in relation to the toner; Sin θ>μ×cos θ.
摘要翻译：显影装置包括安装磁场产生装置的非磁性套筒，承载和输送包括磁性载体和调色剂的显影剂的显影剂载体和含有显影剂的显影外壳。显影套管包括允许显影剂载体部分地暴露并与潜像载体相对的开口。显影剂载体的表面在开口中垂直移动。显影壳体的内壁表面位于下游侧开口附近和水平面之间的角度（＆amp; t）满足以下关系，其中μ表示内壁表面的静摩擦系数与调色剂的关系; Sin＆thetas;>μ×cos＆thetas;

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