Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1997-07-11
1999-09-14
Yamnitzky, Marie
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
399174, 399175, 361225, 428212, B32B 516, B32B 702, G03G 1500
Patent
active
059521015
ABSTRACT:
A granular charging agent capable of injecting the electric charge into a material to charge the surface of the material when coming in contact with the material with the application of a voltage to the charging agent, comprising magnetic particles which comprise electroconductive magnetic particles and high-resistivity magnetic particles of which resistivity is higher than that of the electroconductive magnetic particles. A granular charging agent may comprise magnetic particles, each magnetic particle comprising an electroconductive surface portion capable of forming a flow path of electric current and a surface portion with a resistivity higher than that of the electroconductive surface portion. In addition, a method of charging a material such as a photoconductor using the above-mentioned granular charging agent is disclosed.
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patent: 4414322 (1983-11-01), Miyakawa et al.
patent: 4640880 (1987-02-01), Kawanishi et al.
patent: 5256513 (1993-10-01), Kawamura et al.
"New photoreceptor charging method by rubbing with magnetic conductive particles", Nobuji Tetsutani et al., J. Appl. Phys. 62(7), Oct. 1987, pp. 2665-2668.
Kikuchi Susumu
Mukataka Hisashi
Nishiguchi Yasuo
Ozawa Yoshio
Tsukahara Shigeki
Kyocera Corporation
Yamnitzky Marie
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