logo

For the Inventor, By the Inventor

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.:

US 6066423 B1

PDFFull Text
Date of Patent:
May. 23, 2000

Filed:

Mar. 11, 1999

Toner for electrophotography

Applicant:
Inventors:

Tatsuo Imafuku, Nara, JP;

Toshihisa Ishida, Kashiba, JP;

Yoshinori Urata, Kashihara, JP;

Takahiro Bito, Nara, JP;

Nobuyasu Honda, Tenri, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka, JP;

Attorney:

Nixon & Venderhye P.C.

Primary Examiner:

John Goodrow

Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 45 ; 430106 ; 430109 ;
Abstract

A toner for electrophotography includes a binder resin as the main component and a coloring agent, wherein the binder resin contains a low molecular weight polypropylene as a separating agent, encapsulated therein; the acid value of the binder resin is adjusted equal to 1.0 (mgKOH/g) or below; and the coloring agent has a surface which is not oxidation treated and presents a pH of 7.0 or higher. Limiting the added amount and the diameter of encapsulated and dispersed polypropylene wax provides prevention against both the setoff and filming phenomena.

Find Patent Forward Citations

Imafuku, Tatsuo. (2000). Toner for electrophotography (U.S. Patent No. 6066423). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6066423

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…