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.
Patent No.:
Date of Patent:
Oct. 26, 1993
Filed:
Dec. 30, 1991
Applicant:
Inventors:
Takao Kawamura, Sakai-shi, Osaka-fu, JP;
Yasuo Nishiguchi, Tokyo, JP;
Yoshio Ozawa, Watarai, JP;
Yukio Ikeda, Watarai, JP;
Katsuhiro Yoshioka, Watarai, JP;
Hiroshi Itoh, Yohkaichi, JP;
Assignees:
Kyocera Corporation, Kyoto, JP;
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
4301066 ; 430108 ;
Abstract
An electroconductive magnetic carrier which is composed of basic particles, each of the basic particles comprising a binder resin and a magnetic material dispersed in the binder resin, and an electroconductive layer formed on the surface of the basic particle, a developer which is composed of the above electroconductive magnetic carrier and (b) an electrically insulating toner, and an image formation method of forming toner images on a photoconductor by using this developer are described.