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
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