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Patent Searching and Data


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.

Inventors:
IIDA TOMOHIDE (JP)
YAMADA TOMOYA (JP)
FUJIWARA TAKASHI (JP)
Application Number:
JP2012/055189
Publication Date:
September 20, 2012
Filing Date:
March 01, 2012
Export Citation:
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Assignee:
DOWA ELECTRONICS MATERIALS CO (?1010021, JP)
DOWA IP CREATION CO LTD (?7028053, JP)
IIDA TOMOHIDE (JP)
YAMADA TOMOYA (JP)
FUJIWARA TAKASHI (JP)
International Classes:
G03G9/107; G03G9/113
Foreign References:
JP2001027828A2001-01-30
JP2002296846A2002-10-09
JP2006337828A2006-12-14
JPH10198077A1998-07-31
JP2008261955A2008-10-30
JP2008241742A2008-10-09
JP2005314176A2005-11-10
JP2002296846A2002-10-09
JP2008191322A2008-08-21
Other References:
See also references of EP 2584410A4
Attorney, Agent or Firm:
ITOH, Hidehiko et al. (?5420082, JP)
Hidehiko Ito (?5420082, JP)
Download PDF:
Claims: