发明名称 |
MAGNET COMPOUND MATERIAL, MAGNET MOLDING, DEVELOPING MAGNET ROLLER, DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnet compound material for a dispersive type compression molding magnet by which variations of magnetic characteristics are controlled by evenly dispersing magnet powders and resin corpuscles in the magnet compound material. <P>SOLUTION: The magnet compound material is used for compression molding wherein the magnet powders 1 and the resin corpuscles 2 are mixed and agitated, then the resin corpuscles 2 are electrostatically adhered to the magnet powders 1. Magnetism of a magnet molding thus obtained is made uniform in a wide range, and the variations of the magnetism are reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
申请公布号 |
JP2005072553(A) |
申请公布日期 |
2005.03.17 |
申请号 |
JP20040016977 |
申请日期 |
2004.01.26 |
申请人 |
RICOH CO LTD |
发明人 |
KAMOI SUMIO;IMAMURA TAKESHI;KAKEGAWA MIEKO;KAMIYA NORIYUKI;HIZUKA KYOTA;TAKANO YOSHIYUKI;TERAJIMA TOMOHITO |
分类号 |
G03G15/09;H01F1/053;H01F1/08;H01F7/02 |
主分类号 |
G03G15/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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