Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1992-09-03
1995-05-30
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, 252 6254, 252 6255, G03G 9107
Patent
active
054199948
ABSTRACT:
An iron carrier for an electrophotographic developer, the carrier having a mean particle diameter of 25 to 40 .mu.m, a magnetization of at least 160 emu/g at 3000 Oe, an apparent density of 3.0 to 4.2 g/cm.sup.3, a percentage sphericity of at least 80%, and a specific surface area of at least 350 cm.sup.2 /g as determined by an air permeation method; a process for preparing the carrier by a plasma method; and an electrophotographic developer comprising the carrier.
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patent: 4781753 (1988-11-01), Kopatz et al.
patent: 4950570 (1990-08-01), Sano et al.
patent: 4996126 (1991-02-01), Anno et al.
Honjo Toshio
Kayamoto Kanao
Ogata Masahiro
Sato Yuji
Powdertech Co., Ltd.
Rodee Christopher D.
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