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1. 发明授权

US07965965B2 Development device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US07965965B2
公开(公告)日：2011-06-21
申请号：US12620703
申请日：2009-11-18
申请人： Masahiro Maeda , Yoichi Yamada , Yoshiyuki Kurebayashi , Daisuke Matsumoto , Masaru Kobashi , Takatomo Fukumoto
发明人： Masahiro Maeda , Yoichi Yamada , Yoshiyuki Kurebayashi , Daisuke Matsumoto , Masaru Kobashi , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634
摘要： Provided is a development device including: a development roller in which continuous spiraling inclined grooves having different inclinations with respect to an axial direction are formed so as to cross each other; and a feed roller which is in contact with the development roller and feeds toner to the development roller, wherein transportation force, which is used for transporting the toner on the development roller from one side to the other side of the axial direction of the development roller, is generated by the rotation of the feed roller.
摘要翻译：提供一种显影装置，包括：显影辊，其中形成有相对于轴向方向具有不同倾斜度的连续螺旋倾斜槽，以便彼此交叉; 以及与显影辊接触并将调色剂供给到显影辊的进给辊，其中用于将显影辊上的调色剂从显影辊轴向方向的一侧传送到另一侧的输送力由进给辊的旋转产生。

2. 发明授权

US08170454B2 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US08170454B2
公开(公告)日：2012-05-01
申请号：US12511848
申请日：2009-07-29
申请人： Yoichi Yamada , Daisuke Matsumoto , Takatomo Fukumoto
发明人： Yoichi Yamada , Daisuke Matsumoto , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0813 , G03G2215/0619
摘要： An image forming apparatus includes: a latent image holder that holds on its surface an electrostatic latent image in which an image portion and a non-image portion have different potentials; a toner carrying roller that carries a toner layer including both contact toner which directly contacts a surface of the roller and non-contact toner which contacts the contact toner but does not contact the surface of the roller; and an electric field forming unit that forms an alternating electric field to cause an electric field strength exerted between the non-image portion on the surface of the latent image holder and the surface of the toner carrying roller to be lower than a contact toner fly start electric field strength and higher than a non-contact toner fly start electric field strength, between the latent image holder and the toner carrying roller, as a toner fly electric field.
摘要翻译：图像形成装置包括：潜像保持器，其在其表面上保持图像部分和非图像部分具有不同电位的静电潜像; 携带调色剂层的调色剂承载辊，其包括直接接触辊表面的接触调色剂和与接触调色剂接触但不接触辊的表面的非接触式调色剂; 以及电场形成单元，其形成交变电场以使施加在潜像保持器的表面上的非图像部分和调色剂承载辊的表面之间的电场强度低于接触式调色剂起始点作为调色剂飞电场，在潜像保持器和调色剂承载辊之间，电场强度高于非接触式调色剂起飞电场强度。

3. 发明授权

US08412080B2 Developing roller manufacturing method, developing roller, developing device, and image forming apparatus 有权
标题翻译：显影辊制造方法，显影辊，显影装置和成像装置
公开(公告)号：US08412080B2
公开(公告)日：2013-04-02
申请号：US12620693
申请日：2009-11-18
申请人： Masahiro Maeda , Yoichi Yamada , Yoshiyuki Kurebayashi , Daisuke Matsumoto , Masaru Kobashi , Takatomo Fukumoto
发明人： Masahiro Maeda , Yoichi Yamada , Yoshiyuki Kurebayashi , Daisuke Matsumoto , Masaru Kobashi , Takatomo Fukumoto
IPC分类号： G03G15/08 , B21D53/00 , B21K1/02 , B23P17/00
CPC分类号： G03G15/0818 , B21H7/18 , G03G2215/0634 , Y10T29/4956
摘要： A method of manufacturing a developing roller, including: a first rolling process for forming a first inclined groove which is continuous in a helical shape, by rotating a first die having blades inclined with respect to an axial direction and a circumferential direction, and a non-bladed die, and feeding an unprocessed developing roller between the first die and the non-bladed die; and a second rolling process for forming a second inclined groove which is continuous in a helical shape and intersects with the first inclined groove, by rotating a second die having blades inclined with respect to an axial direction and a circumferential direction in the direction opposite to that of the first die, and the non-bladed die in the same direction opposite to that in the first rolling process, and feeding the developing roller between the second die and the non-bladed die.
摘要翻译：一种显影辊的制造方法，其特征在于，包括：第一轧制工序，其通过旋转具有相对于轴向和圆周方向倾斜的叶片的第一模具形成螺旋状连续的第一倾斜槽，在第一模具和非叶片模具之间进给未加工的显影辊; 以及第二轧制工艺，用于形成第二倾斜槽，该第二倾斜槽与螺旋形连续并与第一倾斜槽相交，通过旋转具有相对于轴向方向和圆周方向相对于轴向方向和圆周方向倾斜的叶片的第二模具，的第一模具和非叶片模具在与第一轧制过程相反的方向上，并且将显影辊馈送在第二模具和非叶片模具之间。

4. 发明授权

US08401443B2 Toner-particle bearing roller, developing device, and image forming apparatus 有权
标题翻译：调色剂承载辊，显影装置和图像形成装置
公开(公告)号：US08401443B2
公开(公告)日：2013-03-19
申请号：US13271140
申请日：2011-10-11
申请人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai , Katsumi Okamoto , Hiroshi Kato , Masanao Kunugi , Takatomo Fukumoto
发明人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai , Katsumi Okamoto , Hiroshi Kato , Masanao Kunugi , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634
摘要： A developing device includes a toner particle-bearing roller that bears toner particles on its surface and develops a latent image borne by an image-bearing member with those toner particles, the toner particle-bearing roller has a projection portion disposed on its surface, the projection portion having a top surface having a flat portion, and a width of the top surface being equal to or more than a volume average particle diameter of the toner particles.
摘要翻译：显影装置包括：调色剂颗粒承载辊，其表面上带有调色剂颗粒，并且通过这些调色剂颗粒显影由图像承载部件承载的潜像，调色剂颗粒承载辊具有设置在其表面上的突出部分，突起部分具有平坦部分的顶表面，并且顶表面的宽度等于或大于调色剂颗粒的体积平均粒径。

5. 发明授权

US08086152B2 Developing device, image forming apparatus, image forming system, developing method, and toner bearing member 有权
标题翻译：显影装置，图像形成装置，图像形成系统，显影方法和调色剂承载部件
公开(公告)号：US08086152B2
公开(公告)日：2011-12-27
申请号：US12124939
申请日：2008-05-21
申请人： Yoichi Yamada , Takatomo Fukumoto
发明人： Yoichi Yamada , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： The present invention provides a developing device that includes a toner bearing member that includes regularly arranged projection sections and depressed sections for bearing toner, and that develops a latent image borne on an image bearing member with the toner borne on the projection sections and the depressed sections, wherein the latent image is developed in a state in which a projection section covering ratio at which toner contacting the projection sections covers the projection sections is smaller than a depressed section covering ratio at which toner contacting the depressed sections covers the depressed sections.
摘要翻译：本发明提供了一种显影装置，其包括调色剂承载部件，该调色剂承载部件包括规则地布置的突出部分和用于承载调色剂的凹陷部分，并且在承载在图像承载部件上的潜像显影，所述调色剂承载在突出部分和凹陷部分上其中，所述潜像以与所述突出部分接触的调色剂覆盖所述突出部分的突出部分覆盖率小于所述凹陷部分接触所述凹陷部分的调色剂覆盖所述凹陷部分的凹陷部覆盖率的状态显影。

6. 发明授权

US08081911B2 Development roller, development device, and image forming apparatus 失效
标题翻译：显影辊，显影装置和成像装置
公开(公告)号：US08081911B2
公开(公告)日：2011-12-20
申请号：US12388857
申请日：2009-02-19
申请人： Yoichi Yamada , Masahiro Maeda , Junichi Suzuki , Takatomo Fukumoto
发明人： Yoichi Yamada , Masahiro Maeda , Junichi Suzuki , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： A development roller includes a base unit having a base recess and a base projection formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit.
摘要翻译：显影辊包括：基座单元，具有形成在基座单元的圆周表面的预定区域中的基部凹部和基部突起;以及基底单元的圆周表面上形成的凹部和突起，分别根据基部凹部和基部单元的基底突起。

7. 发明授权

US07609993B2 Image forming apparatus that prevents developer from spilling 失效
标题翻译：防止显影剂溢出的图像形成装置
公开(公告)号：US07609993B2
公开(公告)日：2009-10-27
申请号：US11537917
申请日：2006-10-02
申请人： Masahiro Maeda , Yoichi Yamada , Mamoru Mizunokura , Takatomo Fukumoto , Fuyuto Yamashita
发明人： Masahiro Maeda , Yoichi Yamada , Mamoru Mizunokura , Takatomo Fukumoto , Fuyuto Yamashita
IPC分类号： G03G15/16 , G03G21/00
CPC分类号： G03G15/161 , G03G21/12 , G03G2215/1661 , G03G2221/1627
摘要： An image forming apparatus, includes: a developer moving element that moves developer in order to transfer the developer onto a medium by rotating with the developer being borne on the developer moving element; and a collector for collecting the developer that has not been transferred onto the medium and remains on the developer moving element, the collector having a scraper blade that can abut against and separate from the developer moving element and that is for scraping off the developer on the developer moving element by abutting against the developer moving element, a sealing member that can contact with and separate from the developer moving element and that is for preventing, by contacting the developer moving element, the developer from spilling outside the collector, a ventilation opening for moving air in the collector outside the collector, and a valve for adjusting an amount of air passing through the ventilation opening, and the collector being made such that when either one of the scraper blade and the sealing member, whichever separates earlier from the developer moving element, starts separating therefrom, air can pass through the ventilation opening.
摘要翻译：一种图像形成装置，包括：显影剂移动元件，其移动显影剂以便通过与显影剂承载在显影剂移动元件上的转动而将显影剂转印到介质上; 以及收集器，用于收集尚未转印到介质上并保留在显影剂移动元件上的显影剂，该收集器具有可与显影剂移动元件抵接并与显影剂移动元件分离的刮板，并且用于刮除显影剂移动元件上的显影剂显影剂移动元件通过抵靠显影剂移动元件，与显影剂移动元件接触并与显影剂移动元件分离的密封元件，并且用于通过使显影剂移动元件接触显影剂而不会溢出集电器外部的通风开口，在收集器外部的收集器中移动空气，以及用于调节通过通气开口的空气量的阀，并且收集器被制成使得当刮板和密封构件中的任一个与显影剂移动元件开始分离，空气可以通过通风口。

8. 发明授权

US07907879B2 Development roller, development device, image forming apparatus, and method of manufacturing development roller 有权
标题翻译：显影辊，显影装置，成像装置和显影辊的制造方法
公开(公告)号：US07907879B2
公开(公告)日：2011-03-15
申请号：US12388908
申请日：2009-02-19
申请人： Yoichi Yamada , Masahiro Maeda , Junichi Suzuki , Takatomo Fukumoto
发明人： Yoichi Yamada , Masahiro Maeda , Junichi Suzuki , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634 , G03G2215/0861 , G03G2215/0863
摘要： A development roller includes a base unit having a base recess and a base projection that are formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having on the circumference thereof a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit. Surface hardness of the projection is higher than surface hardness of the recess.
摘要翻译：显影辊包括具有底座凹部和基部突出部的基座单元，基座突起形成在基座单元的圆周表面的预定区域中，并且表面层形成在基座单元的圆周表面上并且在其圆周上分别形成有与基座部的底座凹部和底座突起部形成的凹部和突起。突起的表面硬度高于凹部的表面硬度。

9. 发明申请

US20100014890A1 Image Forming Apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20100014890A1
公开(公告)日：2010-01-21
申请号：US12502881
申请日：2009-07-14
申请人： Masaru Kobashi , Yoichi Yamada , Masahiro Maeda , Takatomo Fukumoto
发明人： Masaru Kobashi , Yoichi Yamada , Masahiro Maeda , Takatomo Fukumoto
IPC分类号： G03G15/02
CPC分类号： G03G21/00 , G03G2221/1609
摘要： Provided is an image forming apparatus including: a rotatable image carrier; a protective agent supplying unit supplying a protective agent to the image carrier; a first charging unit charging the image carrier to the same polarity as a regular charging polarity of a toner; a second charging unit charging the protective agent supplied to the image carrier to the opposite polarity to the regular charging polarity of the toner; an exposure unit forming an electrostatic latent image on the image carrier; a development unit developing the electrostatic latent image of the image carrier; and a transfer unit transferring the image of the image carrier, wherein the second charging unit is disposed between the protective agent supplying unit and the development unit.
摘要翻译：提供一种图像形成装置，包括：可旋转图像载体; 保护剂供给单元，向图像载体供给保护剂; 第一充电单元将图像载体充电至与调色剂的常规充电极性相同的极性; 第二充电单元将提供给图像载体的保护剂充电到与调色剂的常规充电极性相反的极性; 在所述图像载体上形成静电潜像的曝光单元; 显影单元显影所述图像载体的静电潜像; 以及传送图像载体的图像的转印单元，其中所述第二充电单元设置在所述保护剂供给单元和所述显影单元之间。

10. 发明授权

US07555252B2 Image forming apparatus that prevents conspicuous unevenness in image density 有权
标题翻译：防止图像浓度显着不均匀的图像形成装置
公开(公告)号：US07555252B2
公开(公告)日：2009-06-30
申请号：US11623669
申请日：2007-01-16
申请人： Tomohiro Aruga , Yoichi Yamada , Noboru Sakurai , Takatomo Fukumoto
发明人： Tomohiro Aruga , Yoichi Yamada , Noboru Sakurai , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： An image forming apparatus includes: an image bearing body that is rotatable about a central axis thereof, and that bears a dot-like latent image, on a surface of the image bearing body, in each of a plurality of divided regions that are arranged in rows along a direction that intersects an axial direction of the central axis at a predetermined intersection angle; and a developer bearing roller that is rotatable in order to make visible, as a developer image, the dot-like latent images borne by the image bearing body, using a developer borne on a surface of the developer bearing roller, the developer bearing roller opposing the image bearing body such that an axial direction of the developer bearing roller is parallel to the axial direction of the image bearing body, and that includes a helical groove portion on the surface of the developer bearing roller, the helical groove portion being inclined at a predetermined inclination angle with respect to the axial direction of the developer bearing roller and being formed having a uniform pitch in the axial direction, wherein a value that is a tangent of the inclination angle divided by a ratio of a moving speed of the surface of the developer bearing roller to a moving speed of the surface of the image bearing body is different from a tangent of the intersection angle.
摘要翻译：图像形成装置包括：图像承载体，其能够围绕其中心轴线旋转并且在图像承载体的表面上具有点状潜像，所述图像承载体分布在多个分割区域中沿着与中心轴的轴向相交的方向以预定的交叉角度排列; 以及显影剂承载辊，其可旋转以使作为显影剂图像可见的由图像承载体承载的点状潜像，使用承载在显影剂承载辊的表面上的显影剂，显影剂承载辊相对于所述图像承载体使得所述显影剂承载辊的轴向平行于所述图像承载体的轴向方向，并且所述图像承载体在所述显影剂承载辊的表面上包括螺旋槽部分，所述螺旋槽部分倾斜于相对于显影剂承载辊的轴向的预定倾斜角度并且在轴向方向上具有均匀的间距，其中，倾斜角的切线值除以所述倾斜角度的表面的移动速度的比率显影轴承辊与图像承载体的表面的移动速度不同于交叉角的切线。

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