Title:
CARRIER CORE FOR ELECTRONOGRAPH DEVELOPER, CARRIER FOR ELECTRONOGRAPH DEVELOPER, AND ELECTRONOGRAPH DEVELOPER
Document Type and Number:
WIPO Patent Application WO/2012/124484
Kind Code:
A1
Abstract:
According to a carrier core for an electronograph developer of the present invention, a value of a central particle diameter in a volume particle diameter distribution is in the range of 30 μm to 40 μm, a ratio of a particle diameter equal to or less than 22 μm in the volume particle diameter distribution is equal to or higher than 1.0% and equal to or lower than 2.0%, a ratio of a particle diameter equal to or less than 22μm in a number particle diameter distribution is equal to or lower than 10%, and a magnetization value at an external magnetic field of 10,000e is equal to or higher than 50 emu/g and equal to or lower than 75 emu/g.
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Inventors:
IIDA TOMOHIDE (JP)
YAMADA TOMOYA (JP)
FUJIWARA TAKASHI (JP)
YAMADA TOMOYA (JP)
FUJIWARA TAKASHI (JP)
Application Number:
PCT/JP2012/055189
Publication Date:
September 20, 2012
Filing Date:
March 01, 2012
Export Citation:
Assignee:
DOWA ELECTRONICS MATERIALS CO (JP)
DOWA IP CREATION CO LTD (JP)
IIDA TOMOHIDE (JP)
YAMADA TOMOYA (JP)
FUJIWARA TAKASHI (JP)
DOWA IP CREATION CO LTD (JP)
IIDA TOMOHIDE (JP)
YAMADA TOMOYA (JP)
FUJIWARA TAKASHI (JP)
International Classes:
G03G9/113; G03G9/107
Foreign References:
| JP2001027828A | 2001-01-30 | |||
| JP2002296846A | 2002-10-09 | |||
| JP2006337828A | 2006-12-14 | |||
| JPH10198077A | 1998-07-31 | |||
| JP2008261955A | 2008-10-30 | |||
| JP2008241742A | 2008-10-09 | |||
| JP2005314176A | 2005-11-10 | |||
| JP2002296846A | 2002-10-09 | |||
| JP2008191322A | 2008-08-21 |
Other References:
See also references of EP 2584410A4
Attorney, Agent or Firm:
ITOH, Hidehiko et al. (JP)
Hidehiko Ito (JP)
Hidehiko Ito (JP)
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Claims: