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1. 发明授权

US4259427A Image-forming developer 失效
标题翻译：成像显影剂
公开(公告)号：US4259427A
公开(公告)日：1981-03-31
申请号：US25783
申请日：1979-04-02
申请人： Yuzo Ohmuro , Nin-ichi Kamogawa , Shigeru Uetake , Yoshio Yamazaki
发明人： Yuzo Ohmuro , Nin-ichi Kamogawa , Shigeru Uetake , Yoshio Yamazaki
IPC分类号： G03G9/08 , G03G9/083 , G03G13/09 , G03G9/14
CPC分类号： G03G9/083 , G03G13/09 , G03G9/0825 , Y10S430/104 , Y10S430/105
摘要： An image-forming method using a developer comprising as the main component ferromagnetic and insulating toner particles. Said method comprises the steps of holding said developer on a delivery member by a magnetic force, causing the developer to tuft at the developing position and to fall in contact with an electrostatic latent image-supporting member, developing the electrostatic latent image and forming a toner image by the toner particles charged predominantly by mutual friction of the toner particles, and transferring the toner image onto a plain paper superimposed on the electrostatic latent image-supporting member by electrostatic transfer means. Said developer has a specific resistance of at least 10.sup.14 .OMEGA.-cm and the potential decay ratio of the developed developer is lower than 50% as measured according to the method defined in the specification.
摘要翻译：使用显影剂的图像形成方法，该显影剂包含作为主要成分的铁磁性和绝缘性调色剂颗粒。所述方法包括以下步骤：通过磁力将所述显影剂保持在传送部件上，使显影剂在显影位置上簇起来并与静电潜像支撑部件接触，使静电潜像显影并形成调色剂通过主要由调色剂颗粒的相互摩擦而充电的调色剂颗粒形成图像，并且通过静电转印装置将调色剂图像转印到叠加在静电潜像支撑构件上的普通纸上。所述显影剂具有至少1014欧姆 - 厘米的电阻率，并且显影显影剂的潜在衰减比率低于根据说明书中定义的方法测量的50％。

2. 发明授权

US4137188A Magnetic toner for electrophotography 失效
标题翻译：用于电子照相的磁性调色剂
公开(公告)号：US4137188A
公开(公告)日：1979-01-30
申请号：US874151
申请日：1978-02-01
申请人： Shigeru Uetake , Katsutoshi Tozawa , Keiji Sato
发明人： Shigeru Uetake , Katsutoshi Tozawa , Keiji Sato
IPC分类号： G03G9/08 , G03G9/14
CPC分类号： G03G9/0815 , G03G9/081 , Y10S430/104
摘要： An insulating magnetic toner useful as a one component developer for electro-photography consisting essentially of a ferro-magnetic material, a resin and a charge controlling agent. The preferred toner mixture has an average particle size in the range from about 7 to about 30 .mu.m and is substantially free of particles having a size smaller than 1 .mu.m. The toner is preferably prepared by mixing a ferromagnetic material, a resin and a charge controlling agent, heat kneading, cooling and then granulating the mixture to form fine particles, contacting the pacticles with a hot gas of a temperature higher than the toner softening point and lower than 500.degree. C to fuse particles smaller than about 1 .mu.m to larger particles, cooling and selecting the particles of an average particle size of about 7 to about 30 .mu.m.
摘要翻译：用作用于电摄影的单组分显影剂的绝缘磁性调色剂，其基本上由铁磁性材料，树脂和电荷控制剂组成。优选的调色剂混合物的平均粒度在约7至约30μm的范围内，并且基本上不含具有小于1μm的尺寸的颗粒。调色剂优选通过混合铁磁材料，树脂和电荷控制剂来制备，热捏合，冷却，然后将混合物制粒以形成细颗粒，使颗粒与温度高于调色剂软化点的热气接触，低于500℃，将小于约1μm的颗粒熔合成较大的颗粒，冷却并选择平均粒度为约7至约30μm的颗粒。

3. 发明授权

US4164476A Developer for latent electrostatic image and process for preparation thereof 失效
标题翻译：静电潜像显影剂及其制备方法
公开(公告)号：US4164476A
公开(公告)日：1979-08-14
申请号：US867500
申请日：1978-01-06
申请人： Shotaro Watanabe , Fumio Koizumi , Katsutoshi Tozawa , Shigeru Uetake
发明人： Shotaro Watanabe , Fumio Koizumi , Katsutoshi Tozawa , Shigeru Uetake
IPC分类号： G03G9/08 , G03G9/083 , G03G9/097
CPC分类号： G03G9/0838 , G03G9/0808 , G03G9/081 , G03G9/0817 , G03G9/09716 , G03G9/09725
摘要： The present invention is for the improvements of a developer for a one-component latent electrostatic image and the process for the preparation thereof. The present invention is the one which has improved points at issue in the case of using a developer for the conventional conductive one-component latent electrostatic image for a copying machine using a corona discharger and in which particles are prepared by uniformly mixing a magnetic substance in resin and the magnetic substance is substantially exposed on the particle surface by heat treatment and hydrophobic silica fine powders are supported on, or interposed in, said particles; the particles are, as a whole, electrically insulating and given electric charge necessary to form an image by friction of mutual particles; thus even in a copying machine using a corona discharger, good development can be obtained with this developer; and further the present invention is the one which provides a process for the preparation of said particles.
摘要翻译：本发明是为了改善单组分静电潜像的显影剂及其制备方法。本发明是在使用电晕放电器的复印机的传统的导电性单组分静电潜像中使用显影剂的情况下的改进点，其中通过将磁性物质均匀混合而制备颗粒树脂，并且磁性物质通过热处理基本上暴露在颗粒表面上，并且疏水性二氧化硅细粉末负载在或插入所述颗粒中; 作为整体，颗粒通过相互颗粒的摩擦而电绝缘并给予形成图像所需的电荷; 因此即使在使用电晕放电器的复印机中，也可以用该显影剂获得良好的显影性; 并且本发明进一步提供了制备所述颗粒的方法。

4. 发明授权

US4335196A Electrostatic image developing and transfer method uses single component magnetic developer 失效
标题翻译：静电图像显影和转印方法使用单组分磁性显影剂
公开(公告)号：US4335196A
公开(公告)日：1982-06-15
申请号：US211344
申请日：1980-11-28
申请人： Yuzo Ohmuro , Nin-ichi Kamogawa , Shigeru Uetake , Yoshio Yamazaki
发明人： Yuzo Ohmuro , Nin-ichi Kamogawa , Shigeru Uetake , Yoshio Yamazaki
IPC分类号： G03G9/08 , G03G9/083 , G03G13/09 , G03G13/22
CPC分类号： G03G13/09 , G03G13/22 , G03G9/0823 , G03G9/083 , Y10S430/104
摘要： An image-forming method using a developer comprising as the main component ferromagnetic and insulating toner particles. Said method comprises the steps of holding said developer on a delivery member by a magnetic force, causing the developer to tuft at the developing position and to fall in contact with an electrostatic latent image-supporting member, developing the electrostatic latent image and forming a toner image by the toner particles charged predominantly by mutual friction of the toner particles, and transferring the toner image onto a plain paper superposed on the electrostatic latent image-supporting member by electrostatic transfer means. Said developer has a specific resistance of at least 10.sup.14 .OMEGA.-cm and the potential decay ratio of the developed developer is lower than 50% as measured according to the method defined in the specification.
摘要翻译：使用显影剂的图像形成方法，该显影剂包含作为主要成分的铁磁性和绝缘性调色剂颗粒。所述方法包括以下步骤：通过磁力将所述显影剂保持在传送部件上，使显影剂在显影位置上簇起来并与静电潜像支撑部件接触，使静电潜像显影并形成调色剂通过主要由调色剂颗粒的相互摩擦而充电的调色剂颗粒形成图像，并且通过静电转印装置将调色剂图像转印到叠加在静电潜像支撑构件上的普通纸上。所述显影剂具有至少1014欧姆 - 厘米的电阻率，并且显影显影剂的潜在衰减比率低于根据说明书中定义的方法测量的50％。

5. 发明授权

US4230787A Magnetic toner for developing latent electrostatic images and a process for the preparation thereof 失效
标题翻译：用于显影静电潜像的磁性调色剂及其制备方法
公开(公告)号：US4230787A
公开(公告)日：1980-10-28
申请号：US822786
申请日：1977-08-08
申请人： Shotaro Watanabe , Katsutoshi Tozawa , Shigeru Uetake
发明人： Shotaro Watanabe , Katsutoshi Tozawa , Shigeru Uetake
IPC分类号： G03G9/08 , G03G9/083 , G03G9/14
CPC分类号： G03G9/0832 , G03G9/0833 , G03G9/0834 , Y10S430/104 , Y10T428/2998
摘要： A one-component developer for developing a latent electrostatic image which comprises magnetic particles, thermoplastic resins and electric charge controlling dyestuffs as main components and in which the magnetic particles are substantially coated with the electric charge controlling dyestuffs. The resulting toner forms no fringe or ghost and has good duplicativity of halftone images. The toner is made by coating the magnetic particles with the electric charge controlling dyestuffs before mixing the magnetic particles with the resin.
摘要翻译：用于显影静电潜像的单组分显影剂，其包含磁性颗粒，热塑性树脂和电荷控制染料作为主要组分，其中磁性颗粒基本上涂覆有电荷控制染料。所得到的调色剂不形成边缘或重影，并且具有良好的半色调图像重复性。在将磁性颗粒与树脂混合之前，通过用电荷控制染料涂覆磁性颗粒来制备调色剂。

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