Invention Grant
US09201328B2 Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier
有权
用于树脂填充的铁素体载体的芯材和用于电子照相显影剂的铁氧体载体，以及使用铁氧体载体的电子照相显影剂
- Patent Title: Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier
- Patent Title (中): 用于树脂填充的铁素体载体的芯材和用于电子照相显影剂的铁氧体载体，以及使用铁氧体载体的电子照相显影剂
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Application No.: US14219162Application Date: 2014-03-19
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Publication No.: US09201328B2Publication Date: 2015-12-01
- Inventor: Hiroki Sawamoto , Takao Sugiura
- Applicant: POWDERTECH CO., LTD.
- Applicant Address: JP Chiba
- Assignee: POWDERTECH CO., LTD.
- Current Assignee: POWDERTECH CO., LTD.
- Current Assignee Address: JP Chiba
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2013-058778 20130321
- Main IPC: G03G9/00
- IPC: G03G9/00 ; G03G9/10 ; G03G9/113 ; G03G9/107
Abstract:
Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle having an average compression strength of 100 mN or more and a coefficient of variation of the compression strength of 50% or less, a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material, and an electrophotographic developer using the ferrite carrier.
Public/Granted literature
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