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1. 发明授权

US5508139A Magnetic toner for developing electrostatic image 失效
标题翻译：用于静电图像显影的磁性调色剂
公开(公告)号：US5508139A
公开(公告)日：1996-04-16
申请号：US215624
申请日：1994-03-22
申请人： Katsuhiko Tanaka , Takayuki Nagatsuka , Rika Doi
发明人： Katsuhiko Tanaka , Takayuki Nagatsuka , Rika Doi
IPC分类号： G03G9/083 , G03G9/09
CPC分类号： G03G9/083 , G03G9/0836 , G03G9/091
摘要： A magnetic toner for developing an electrostatic image is disclosed which has a binder resin, a magnetic material and an iron compound of the formula (I). The magnetic toner has a saturation magnetization of 20 to 50 Am.sup.2 /kg and a coercive force of 40 to 200 oersted.
摘要翻译：公开了用于显影静电图像的磁性调色剂，其具有粘合剂树脂，磁性材料和式（I）的铁化合物。磁性调色剂的饱和磁化强度为20〜50Am 2 / kg，矫顽力为40〜200奥斯特。

2. 发明授权

US5306588A Treated silica fine powder and toner for developing electrostatic images 失效
标题翻译：处理二氧化硅细粉和用于显影静电图像的调色剂
公开(公告)号：US5306588A
公开(公告)日：1994-04-26
申请号：US854001
申请日：1992-03-19
申请人： Katsuhiko Tanaka , Tsuyoshi Takigushi , Rika Doi
发明人： Katsuhiko Tanaka , Tsuyoshi Takigushi , Rika Doi
IPC分类号： G03G9/097 , G03G9/08
CPC分类号： G03G9/09716 , Y10T428/2993
摘要： A treated silica fine powder and a toner having this powder to be used as a toner for developing an electrostatic image. The treated silica fine powder is formed of treated fine silica particles obtained by treating fine silica particles with (a) a first silane coupling agent in which at least one of a substituted secondary alkyl group, an unsubstituted secondary alkyl group, a substituted tertiary alkyl group, an unsubstituted tertiary alkyl group, a substituted cyclic hydrocarbon group and an unsubstituted cyclic hydrocarbon group is bonded to a silicon atom of the silane coupling agent, and by thereafter treating the resultant fine particles of silica with a second silane coupling agent having the formula ##STR1## wherein R1 represents a methyl group, a halomethyl group, a saturated straight chain hydrocarbon group or an unsaturated straight chain hydrocarbon group; Y represents an alkoxy group or a halogen group; m represents an integer of 1 to 3; n represents an integer of 1 to 3; and m and n are 4.
摘要翻译：处理过的二氧化硅细粉末和具有该粉末的调色剂用作显影静电图像的调色剂。经处理的二氧化硅细粉末由（a）第一硅烷偶联剂处理二氧化硅微粒得到的经处理的二氧化硅微粒形成，其中取代的仲烷基，未取代的仲烷基，取代的叔烷基中的至少一个，未取代的叔烷基，取代的环状烃基和未取代的环状烃基键合到硅烷偶联剂的硅原子上，然后用具有式（II）的第二硅烷偶联剂处理得到的二氧化硅微粒， *化学结构*）其中R1表示甲基，卤代甲基，饱和直链烃基或不饱和直链烃基; Y表示烷氧基或卤素基; m表示1〜3的整数， n表示1〜3的整数， m和n为4。

3. 发明授权

US5288579A Developer for developing electrostatic image, image forming apparatus, apparatus unit and facsimile apparatus 失效
标题翻译：用于显影静电图像，图像形成装置，装置单元和传真装置的显影剂
公开(公告)号：US5288579A
公开(公告)日：1994-02-22
申请号：US801486
申请日：1991-12-02
申请人： Katsuhiko Tanaka , Kazuyoshi Hagiwara , Tsuyoshi Takiguchi , Rika Doi
发明人： Katsuhiko Tanaka , Kazuyoshi Hagiwara , Tsuyoshi Takiguchi , Rika Doi
IPC分类号： G03G9/097 , H04N1/29 , G03G9/00 , G03G9/083 , G03G9/107
CPC分类号： G03G9/09775
摘要： A developer for developing electrostatic images is constituted by toner containing a binder resin and a charge controller. The charge controller comprises an arylurea compound which is an arylurea having at least one electron-attracting group or electron-donating group, or a polyarylurea including such an arylurea as a recurring unit. The arylurea compound is substantially colorless and can have stable but different levels of triboelectric chargeability depending on the substituents.
摘要翻译：用于显影静电图像的显影剂由含有粘合剂树脂和充电控制器的调色剂构成。电荷控制剂包括芳基脲化合物，其为具有至少一个吸电子基团或给电子基团的芳基脲，或包含作为重复单元的芳基脲的聚芳基脲。芳基脲化合物基本上是无色的并且根据取代基可以具有稳定但不同的摩擦带电性。

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