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:
Mar. 27, 1990

Filed:

Jul. 15, 1988
Applicant:
Inventors:

Ikutaroh Nagatsuka, Kanagawa, JP;

Yasuo Matsumura, Kanagawa, JP;

Masayuki Takeda, Kanagawa, JP;

Emi Takahashi, Kanagawa, JP;

Takayoshi Aoki, Kanagawa, JP;

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

A carrier for a developer is disclosed, comprising a carrier core containing a binder resin and a magnetic powder as essential components, and a coating layer provided on the surface of the carrier core, the coating layer containing a polymer obtained by polymerizing a charge controlling monomer in the presence of polyolefin.


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