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    Image forming apparatus that prevents attachment of toner to lateral sides of the developing roll
    1.
    发明授权
    Image forming apparatus that prevents attachment of toner to lateral sides of the developing roll 失效
    图像形成装置防止调色剂附着到显影辊的侧面

    公开(公告)号：US06917780B2

    公开(公告)日：2005-07-12

    申请号：US10173416

    申请日：2002-06-13

    申请人： Yoshio Ozawa ,  Eiji Ochiai ,  Shoichi Sakata ,  Toshinori Nishimura ,  Masayoshi Yamada

    发明人： Yoshio Ozawa ,  Eiji Ochiai ,  Shoichi Sakata ,  Toshinori Nishimura ,  Masayoshi Yamada

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0808 ,  G03G2215/0607 ,  G03G2215/0634

    摘要： An image forming apparatus of non-contact developing method using two-component developer material which is capable of obtaining a clear image free from fogging, ghost and toner contamination. The image forming apparatus has at least one developing unit which includes a developing roll and a magnetic roll, the developing unit develops an electrostatic latent image on a photosensitive body with a toner thin layer formed on the surface of a developing roll wherein a toner thin layer forming region on the developing roll is smaller than a magnetic brush forming region on the magnetic roll. A high resistivity region is adjacent each end of the toner thin layer forming region on the developing roll. A control device controls a developer material replenishment and controls the biasing to the developing roll and magnetic roll.

    摘要翻译： 一种使用双组分显影剂材料的非接触显影方法的图像形成装置，其能够获得没有起雾，重影和调色剂污染的清晰图像。 图像形成装置具有至少一个包括显影辊和磁性辊的显影单元，显影单元在感光体上显影，其中形成在显影辊表面上的调色剂薄层，其中调色剂薄层 显影辊上的成膜区域小于磁辊上的磁刷形成区域。 高电阻率区域与显影辊上的调色剂薄层形成区域的每一端相邻。 控制装置控制显影剂材料补充并控制对显影辊和磁辊的偏置。

    Image forming process and apparatus and control method thereof
    2.
    发明授权
    Image forming process and apparatus and control method thereof 有权

    公开(公告)号：US06512909B2

    公开(公告)日：2003-01-28

    申请号：US09922003

    申请日：2001-07-31

    申请人： Yoshio Ozawa ,  Eiji Ochiai ,  Shoichi Sakata

    发明人： Yoshio Ozawa ,  Eiji Ochiai ,  Shoichi Sakata

    IPC分类号： G03G1509

    CPC分类号： G03G13/08 ,  G03G15/065 ,  G03G2215/0607 ,  G03G2215/0634

    摘要： When image formation is performed by an apparatus comprising: a magnetic roll for generating a magnetic brush by carrier having toner adhering triboelectrically thereto, a developer roll on the surface of which a thin layer of the toner supplied by the magnetic brush is formed, and a photoreceptor onto which the toner of thin layer jumps selectively in accordance with the latent image thereon; positively chargeable toner of which charge amount is controlled in 5˜20 &mgr;C/g is used, the surface potential of the photoreceptor is set to a range above 0 to 250 V, and the after exposure potential which is the potential right after the photoreceptor is exposed is in a range of 0˜ to 100 V.

    Image forming process and an image forming apparatus
    3.
    发明授权
    Image forming process and an image forming apparatus 有权
    图像形成处理和图像形成装置

    公开(公告)号：US06324354B1

    公开(公告)日：2001-11-27

    申请号：US09507880

    申请日：2000-02-22

    申请人： Hiroyoshi Tode ,  Masayoshi Yamada ,  Eiji Ochiai

    发明人： Hiroyoshi Tode ,  Masayoshi Yamada ,  Eiji Ochiai

    IPC分类号： G03G1508

    CPC分类号： G03G15/0806

    摘要： The present invention relates to an image forming process and an image forming apparatus, which have a refresh means which refreshes the developing sleeve by allowing the toner on the developing sleeve to jump toward the photoreceptor drum when transfer to recording medium is not done. Refresh is performed by applying an AC bias between the photoreceptor drum and the developing sleeve. The number of dots of latent image corresponding to actual image pattern is counted and the ratio of this number of dots to the number of dots corresponding to full black original image is defined as print rate, and cumulative average print rate is calculated each time when a page or a predetermined number of pages is printed. When the average print rate falls short of proper print rate, refresh is performed. It is suitable to set several proper print rate, and the duration of application of the AC bias is varied according to the average print rate. It is also effective to apply AC bias for refresh higher in effective voltage than applied for developing. It is also effective to prevent “fog” by applying transfer reverse bias to transfer part until the toner on the photoreceptor passes the transfer part and transfer positive bias after cleaning of the toner on the photoreceptor is finished. Generally, when an image forming apparatus is used for an extended period of time or when low print rate original image is copied in large quantity, deterioration such as reduction in print density and “fog” is liable to occur. According to the present invention, even if images of low print rate is copied in large quantity, deterioration does not occur.

    摘要翻译： 本发明涉及一种图像形成处理和图像形成装置，其具有刷新装置，该刷新装置通过使未显影转印到记录介质上的显影套筒上的调色剂向着感光鼓跳转而刷新显影套筒。刷新是 通过在感光鼓和显影套筒之间施加AC偏压来执行。对与实际图像图案相对应的潜像的点数进行计数，并且定义该点数与对应于全黑色原始图像的点数的比率 作为打印率，并且每当打印页面或预定页数时计算累积平均打印速率。当平均打印速率低于正确的打印速率时，执行刷新。 适合设定几种正确的打印速度，AC偏置的使用持续时间根据平均打印速度而变化。在施加有效电压的AC偏压上应用交流偏压也适用于显影。它也是有效的 通过将转印反转偏压施加到转印部件直到感光体上的调色剂通过转印部分并且在清洁感光体上的调色剂之后传递正偏压才能有效地防止“雾”。通常，当图像形成装置用于 延长的时间段或者当大量拷贝低打印率的原始图像时，易于发生诸如打印浓度降低和“雾”的劣化。根据本发明，即使打印率低的图像被大量地复印 数量，不发生变质。

    Process for producing image and two-component developer
    4.
    发明授权
    Process for producing image and two-component developer 失效
    生产图像和双组分显影剂的方法

    公开(公告)号：US5824445A

    公开(公告)日：1998-10-20

    申请号：US855789

    申请日：1997-05-12

    申请人： Eiji Ochiai ,  Makoto Hamaguchi ,  Hiroyoshi Tode

    发明人： Eiji Ochiai ,  Makoto Hamaguchi ,  Hiroyoshi Tode

    IPC分类号： G03G9/08 ,  G03G5/08 ,  G03G5/082 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G9/083

    CPC分类号： G03G5/08221 ,  G03G9/107 ,  G03G9/113

    摘要： A process for producing an image comprising the steps of: electrically charging a photoreceptor under dark; forming a latent image on the photoreceptor through selective imagewise exposure to light; and developing the latent image with a two-component developer comprising a carrier and a toner, the photoreceptor comprising a conductive substrate having thereon a photoconductive layer comprising amorphous silicon having a thickness of 25 .mu.m or less, the carrier is a magnetic material carrier comprising particles of a magnetic material having an average particle diameter of from 35 to 60 .mu.m, where the content of particles having a diameter of 44 .mu.m or more is 35% by weight or more. A two-component developer comprising a carrier and a toner, the carrier comprising particles of a magnetic material having an average particle diameter of from 35 to 60 .mu.m, where the content of particles having a diameter of 44 .mu.m or more is 35% by weight or more.

    摘要翻译： 一种用于产生图像的方法，包括以下步骤：在黑暗下对感光体进行充电; 通过选择性地成像曝光在感光体上形成潜像; 并使用包含载体和调色剂的双组分显影剂显影潜像，所述感光体包括其上具有厚度为25μm或更小的非晶硅的光电导层的导电基底，所述载体是包含 具有平均粒径为35〜60μm的磁性材料的粒子，其中直径为44μm以上的粒子的含量为35重量％以上。 包含载体和调色剂的双组分显影剂，载体包含平均粒径为35至60μm的磁性材料颗粒，其中直径为44μm或更大的颗粒的含量为35％ 重量以上。

    Developing apparatus
    8.
    发明授权
    Developing apparatus 失效
    开发设备

    公开(公告)号：US6021295A

    公开(公告)日：2000-02-01

    申请号：US086076

    申请日：1998-05-28

    申请人： Eiji Ochiai ,  Shigeki Tsukahara ,  Makoto Hamaguchi ,  Naoki Date

    发明人： Eiji Ochiai ,  Shigeki Tsukahara ,  Makoto Hamaguchi ,  Naoki Date

    IPC分类号： G03G15/08 ,  G03G15/09

    CPC分类号： B82Y15/00 ,  G03G15/09 ,  G03G2215/0614

    摘要： A developing apparatus employing a three-pole stationary magnetic roller for use with a uni-component magnetic developer or toner. The apparatus includes a rotational sleeve which accommodates the stationary roller, a mixer disposed in a toner vessel for stirring the toner, and a toner layer thickness regulator disposed upstream in the sleeve rotation direction from the developing position at which the image on a photo-sensitive drum is developed. The magnetic roller has a developing pole located near the developing position, a blade-facing pole facing the toner layer thickness regulator, and a shield pole located downstream in the sleeve rotation direction from the developing position, where the blade-facing pole and the shield pole are of the opposite polarity to the developing pole. The blade-facing pole and the shield pole generate a repulsive magnetic field therebetween, where the toner that has been stirred in the vessel comes in contact with the sleeve.

    摘要翻译： 一种采用三磁极固定磁辊用于单组分磁性显影剂或调色剂的显影装置。 该装置包括容纳固定辊的旋转套筒，设置在用于搅拌调色剂的调色剂容器中的混合器，以及调色剂层厚度调节器，其从显影位置在显影位置处设置在套筒旋转方向上游， 鼓开发。 磁辊具有位于显影位置附近的显影极，面向调色剂层厚度调节器的面向刀片的磁极和位于显影位置的套筒旋转方向下游的屏蔽极，其中面向刀片的磁极和屏蔽 极极与显影极极性相反。 面向刀片的杆和屏蔽杆在其间产生排斥磁场，其中已经在容器中搅拌的调色剂与套筒接触。

    23-yne-vitamin D3 derivative
    9.
    发明授权
    23-yne-vitamin D3 derivative 有权
    23-维生素D3衍生物

    公开(公告)号：US09006220B2

    公开(公告)日：2015-04-14

    申请号：US13880637

    申请日：2011-10-24

    申请人： Hiroshi Saito ,  Masato Komiyama ,  Eiji Ochiai ,  Kenichiro Takagi ,  Takayuki Chida ,  Mariko Fujita ,  Keiichiro Imaizumi ,  Toshiyuki Kaneko

    发明人： Hiroshi Saito ,  Masato Komiyama ,  Eiji Ochiai ,  Kenichiro Takagi ,  Takayuki Chida ,  Mariko Fujita ,  Keiichiro Imaizumi ,  Toshiyuki Kaneko

    IPC分类号： C07C401/00 ,  C07F7/18

    CPC分类号： C07C401/00 ,  C07C2601/02 ,  C07C2601/08 ,  C07C2601/14 ,  C07C2602/24 ,  C07F7/1804 ,  C07F7/1852 ,  Y02P20/55

    摘要： To provide a novel vitamin D3 derivative useful as a therapeutic agent for osteoporosis.Provided is a vitamin D3 derivative represented by the following formula (1) or a medicinally acceptable solvate thereof: wherein R1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkylcarbonyloxyalkyl group with each alkyl having 1 to 6 carbon atoms, or an arylcarbonyloxyalkyl group with the aryl having 6 to 10 carbon atoms and the alkyl having 1 to 6 carbon atoms; R2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms or, together with the other R2 and the carbon atom to which they are bound to, may form a cyclic alkyl group having 3 to 6 carbon atoms; R3 represents an alkyl group having 1 to 6 carbon atoms or, together with the other R3 and the carbon atom to which they are bound to, may form a cyclic alkyl group having 3 to 6 carbon atoms; X represents an oxygen atom or a methylene group; and n represents an integer of 1 or 2.

    摘要翻译： 提供可用作骨质疏松症治疗剂的新型维生素D3衍生物。 本发明提供由下式（1）表示的维生素D3衍生物或其药学上可接受的溶剂合物：其中，R1表示氢原子，碳原子数1〜6的烷基，碳原子数1〜6的烷基的烷基羰氧基烷基 或芳基具有6至10个碳原子的芳基羰氧基烷基和具有1至6个碳原子的烷基; R 2表示氢原子或碳原子数1〜6的烷基，或者与其它的R 2和与它们相连的碳原子一起形成可以形成碳原子数为3〜6的环状烷基。 R 3表示碳原子数为1〜6的烷基，或者与另外的R 3及与它们相连的碳原子一起形成碳原子数为3〜6的环状烷基。 X表示氧原子或亚甲基; n表示1或2的整数。