公开(公告)号：US06641967B2

公开(公告)日：2003-11-04

申请号：US10107053

申请日：2002-03-28

申请人： Tsuyoshi Takiguchi ,  Kenji Okado ,  Tetsuya Ida

发明人： Tsuyoshi Takiguchi ,  Kenji Okado ,  Tetsuya Ida

IPC分类号： G03G1308

CPC分类号： G03G9/107 ,  G03G9/0821 ,  G03G9/08755

摘要： A carrier for electrophotography and a two component type developer using the carrier. The carrier is composed of magnetic particles of a magnetic ferrite component represented by Formula: (Fe2O3)X(MnO)Y(A)Z. An image forming method is also disclosed which uses the two component type developer.

公开(公告)号：US5795693A

公开(公告)日：1998-08-18

申请号：US908624

申请日：1997-08-08

申请人： Kenji Okado ,  Tsuyoshi Takiguchi ,  Tetsuya Ida

发明人： Kenji Okado ,  Tsuyoshi Takiguchi ,  Tetsuya Ida

IPC分类号： G03G9/083 ,  G03G9/107 ,  G03G9/113 ,  G03G9/10

CPC分类号： G03G9/0833 ,  G03G9/0834 ,  G03G9/107 ,  G03G9/1136 ,  G03G9/1137

摘要： A carrier for electrophotography is constituted by magnetic carrier core particles and a resin coating layer coating the magnetic carrier core particles. The carrier core particles contain a magnetic ferrite component represented by the following formula (I): (Fe.sub.2 O.sub.3).sub.x (A).sub.y (B).sub.z (I), wherein A denotes a member selected from the group consisting of MgO, AgO and mixtures thereof; B denotes a member selected from the group consisting of Li.sub.2 O, MnO, CaO, SrO, Al.sub.2 O.sub.3, SiO.sub.2 and mixtures thereof; and x, y and z are numbers representing weight ratios and satisfying the relation of: 0.2.ltoreq.x.ltoreq.0.95, 0.005.ltoreq.y.ltoreq.0.3, 0

摘要翻译： 用于电子照相的载体由磁性载体芯颗粒和涂覆磁性载体芯颗粒的树脂涂层构成。 载体芯颗粒包含由下式（I）表示的磁性铁氧体组分:( Fe 2 O 3）x（A）y（B）z（I），其中A表示选自MgO，AgO和混合物 的; B表示选自Li2O，MnO，CaO，SrO，Al2O3，SiO2及其混合物的成员; 并且x，y和z是表示重量比的数字，并且满足以下关系：0.2≤x≤0.95,0.003≤y≤0.3,0≤z≤0.795，x + y + z