The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 13, 1994

Filed:

Nov. 30, 1992
Applicant:
Inventors:

Yoshio Ozawa, Tamaki, JP;

Yukio Ikeda, Tamaki, JP;

Katsuhiro Yoshioka, Tamaki, JP;

Assignee:

Kyocera Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
4301066 ; 430108 ; 430122 ;
Abstract

An electroconductive magnetic carrier which is composed of carrier particles, each of the carrier particles comprising a basic particle in which magnetic particles with an average particle diameter of 0.05 to 1.0 .mu.m are dispersed in a binder resin, and electroconductive finely-divided particles with an average particle diameter of 0.5 .mu.m or less which are fixed on the surface of said basic particle to form a carrier particle with an average particle diameter of 5 to 100 .mu.m; a developer which is composed of the above electroconductive magnetic carrier and an electrically insulating toner; and an image formation method of forming toner images on a photoconductor by using this developer are described.


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