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. 20, 2005

Filed:

Apr. 02, 2004
Applicants:

Yutaka Kanamaru, Wakayama, JP;

Hidenori Tachi, Wakayama, JP;

Shinji Moriyama, Wakayama, JP;

Yoshihiro Fukushima, Wakayama, JP;

Inventors:

Yutaka Kanamaru, Wakayama, JP;

Hidenori Tachi, Wakayama, JP;

Shinji Moriyama, Wakayama, JP;

Yoshihiro Fukushima, Wakayama, JP;

Assignee:

Kao Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G009/087 ;
U.S. Cl.
CPC ...
Abstract

A toner for development of electrostatic latent images, comprising a resin binder comprising a resin having a softening point of from 120° to 170° C., a glass transition point of from 58° to 75° C., and a percentage of chloroform-insoluble component of from 5 to 50% by weight; and a resin having a softening point of 90° C. or more and less than 120° C., a glass transition point of from 58° to 75° C., and a percentage of chloroform-insoluble component of less than 5% by weight; and at least one low-melting point wax having a melting point of from 60° to 90° C. The toner for development of electrostatic latent images has low lowest fixing temperature and is excellent in the offset resistance, the blocking resistance and the durability.


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