发明申请
- 专利标题： CARRIER CORE PARTICLES FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER
- 专利标题（中）： 电子显影开发商的载体芯片，电子显影开发商的承运人和电子照相开发商
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申请号： US13641202申请日： 2012-03-01
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公开(公告)号： US20130344431A1公开(公告)日： 2013-12-26
- 发明人: Tomohide Iida , Tomoya Yamada , Takashi Fujiwara
- 申请人： Tomohide Iida , Tomoya Yamada , Takashi Fujiwara
- 申请人地址： JP Okayama-City, Okayama JP Tokyo
- 专利权人： DOWA IP CREATION CO., LTD.,DOWA ELECTRONICS MATERIALS CO., LTD.
- 当前专利权人： DOWA IP CREATION CO., LTD.,DOWA ELECTRONICS MATERIALS CO., LTD.
- 当前专利权人地址： JP Okayama-City, Okayama JP Tokyo
- 优先权： JP2011-057533 20110316
- 国际申请： PCT/JP12/55189 WO 20120301
- 主分类号： G03G9/10
- IPC分类号： G03G9/10
摘要：
The carrier core particles for electrophotographic developer have a volume size distribution with a median particle size ranging from 30 μm to 40 μm, the ratio of the carrier core particles having a diameter of 22 μm or lower in the volume size distribution is from 1.0% to 2.0%, the ratio of the carrier core particles having a diameter of 22 μm or lower in a number size distribution is 10% or lower, and the magnetization of the carrier core particles in an external magnetic field of 1000 Oe is from 50 emu/g to 75 emu/g.