公开(公告)号：US4522907A

公开(公告)日：1985-06-11

申请号：US529125

申请日：1983-09-02

申请人： Yasuo Mitsuhashi ,  Ichiro Ohsaki

发明人： Yasuo Mitsuhashi ,  Ichiro Ohsaki

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/08 ,  G03G15/08

CPC分类号： G03G9/097 ,  G03G9/08 ,  Y10S430/102

摘要： A method for developing electric latent images with a triboelectrified toner without use of carrier particles therefor comprises using as a member for imparting triboelectric charges to said toner, a member containing at least on the surface at least one kind selected from poly (phenylene oxide); polycarbonate, styrene type resin, silicone resin, polymer of vinyl ester type monomer, silane compound, and polyethersulfone. Also, an apparatus for developing electric latent images comprises a toner-holding member, a means for supplying a toner to said toner-holding member and a means for moving said toner-holding member and supplying said toner to a portion for development of the electric latent images; in which at least the surface of said toner-holding member contains at least one kind selected from poly (phenylene oxide), polycarbonate, styrene type resin, silicone resin, polymer of vinyl ester type monomer, silane compound, and polyethersulfone.

摘要翻译： 使用不使用载体颗粒的摩擦带电调色剂来显影电潜像的方法包括使用作为向所述调色剂施加摩擦电荷的构件，至少在表面上至少含有选自聚苯醚的一种; 聚碳酸酯，苯乙烯类树脂，硅树脂，乙烯基酯型单体的聚合物，硅烷化合物和聚醚砜。 另外，用于显影电潜象的装置包括调色剂保持构件，用于向所述调色剂保持构件供应调色剂的装置和用于移动所述调色剂保持构件并将所述调色剂供应到用于显影电气的部分的装置 潜像 其中至少所述调色剂保持构件的表面包含选自聚（苯醚），聚碳酸酯，苯乙烯型树脂，硅树脂，乙烯基酯型单体的聚合物，硅烷化合物和聚醚砜中的至少一种。

公开(公告)号：US5102761A

公开(公告)日：1992-04-07

申请号：US517191

申请日：1990-05-01

申请人： Ichiro Ohsaki ,  Takaaki Kohtaki ,  Yuko Sato ,  Hiroyuki Kobayashi ,  Toshiyuki Ugai

发明人： Ichiro Ohsaki ,  Takaaki Kohtaki ,  Yuko Sato ,  Hiroyuki Kobayashi ,  Toshiyuki Ugai

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G9/097

CPC分类号： G03G9/0914 ,  G03G9/08748 ,  G03G9/092 ,  G03G9/09733

摘要： A color toner for developing an electrostatic latent image, which includes a binder resin, a xanthene-type dye and a compound containing a phenolic --OH (hydroxyl) group.

公开(公告)号：US4939060A

公开(公告)日：1990-07-03

申请号：US420732

申请日：1989-10-12

申请人： Koichi Tomiyama ,  Seiichi Takagi ,  Ichiro Ohsaki ,  Satoshi Yasuda ,  Yoshihiko Hyosu

发明人： Koichi Tomiyama ,  Seiichi Takagi ,  Ichiro Ohsaki ,  Satoshi Yasuda ,  Yoshihiko Hyosu

IPC分类号： G03G9/083 ,  G03G9/087

CPC分类号： G03G9/0836 ,  G03G9/0837 ,  G03G9/087 ,  G03G9/08793 ,  G03G9/08795 ,  Y10S430/104 ,  Y10S524/901 ,  Y10S524/904 ,  Y10S525/934 ,  Y10S526/934

摘要： A magnetic toner for developing electrostatic images, comprising at least a binder resin and a magnetic powder; the binder resin having 10 to 70 wt. % of a THF (tetrahydrofuran)-insoluble and a THF-soluble, the THF-soluble providing a molecular weight distribution in the chromatogram of GPC (gel permeation chromatography) thereof such that it provides a rate (Mw/Mn) of weight-average molecular weight (Mw)/number-average molecular weight (Mn).gtoreq.5, there are a peak in the molecular weight range of 2,000 to 10,000 and a peak or shoulder in the molecular weight range of 15,000 to 100,000 and a component having a molecular weight of 10,000 or smaller is contained in an amount of 10-50 wt. % based on the binder resin; the magnetic powder comprising spherical magnetic particles having a bulk density of 0.6 g/ml or larger.