Invention Grant
- Patent Title: Carrier core material and electrophotographic development carrier using same and electrophotographic developer
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Application No.: US15553623Application Date: 2016-03-01
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Publication No.: US09964878B2Publication Date: 2018-05-08
- Inventor: Yohei Ishikawa , Shinya Sasaki
- Applicant: DOWA ELECTRONICS MATERIALS CO., LTD. , DOWA IP CREATION CO., LTD.
- Applicant Address: JP Tokyo JP Okayama
- Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.,DOWA IP CREATION CO., LTD.
- Current Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.,DOWA IP CREATION CO., LTD.
- Current Assignee Address: JP Tokyo JP Okayama
- Agency: Oliff PLC
- Priority: JP2015-039887 20150302
- International Application: PCT/JP2016/056172 WO 20160301
- International Announcement: WO2016/140206 WO 20160909
- Main IPC: G03G9/107
- IPC: G03G9/107 ; G03G9/08 ; G03G9/113
Abstract:
A carrier core material is represented by a composition formula MxFe3-xO4 (where M is Mn and/or Mg, and X is a total of Mn and Mg and is a substitution number of Fe by Mn and Mg, 0
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