| 发明名称 |
ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND METHOD OF MANUFACTURING THE CARRIER |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a carrier for electrophotographic developer which is excellent in electromagnetic characteristic, electrical chargeability and developability. SOLUTION: A material composed of a metal oxide having a composition described below is used for the carrier for electrophotographic developer: the composition formula is Co<SB>x</SB>Fe<SB>3-x</SB>O<SB>4</SB>and 1<x≤2. COPYRIGHT: (C)2004,JPO |
| 申请公布号 |
JP2004046014(A) |
申请公布日期 |
2004.02.12 |
| 申请号 |
JP20020206203 |
申请日期 |
2002.07.15 |
| 申请人 |
RICOH CO LTD |
发明人 |
TANAKA MOTOHARU;YAMAGUCHI KIMITOSHI;IMAHASHI NAOKI;KOBAN AKIHIRO;TAKAHASHI HIROAKI |
| 分类号 |
G03G9/08;G03G9/087;G03G9/10;G03G9/107;G03G9/113;(IPC1-7):G03G9/107 |
主分类号 |
G03G9/08 |
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