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:
Oct. 21, 1997

Filed:

Dec. 03, 1996
Applicant:
Inventors:

Tomomi Oshiba, Hachioji, JP;

Kenji Yamane, Hachioji, JP;

Hatsumi Yamada, Hachioji, JP;

Yuji Marukawa, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ; 430111 ;
Abstract

A toner used for developing an electrostatic charge image containing a coloring agent, a quaternary ammonium salt compound and polyolefin is disclosed. The quaternary ammonium salt compound is represented by formula (A) and have solubility to water of not more than 2.0%, and number-averaged dispersed diameter of polyolefin is 0.1 .mu.m-1.0 .mu.m. The toner satisfies formula (1);


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