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 8399166 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 19, 2013

Filed:

Mar. 20, 2009
Applicants:

Mikio Kouyama, Tokyo, JP;

Hiroshi Yamazaki, Tokyo, JP;

Ken Ohmura, Tokyo, JP;

Kenji Hayashi, Tokyo, JP;

Inventors:

Mikio Kouyama, Tokyo, JP;

Hiroshi Yamazaki, Tokyo, JP;

Ken Ohmura, Tokyo, JP;

Kenji Hayashi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed are a toner for developing an electrostatic image, a full color toner kit and an image formation method layer, the toner comprising at least a resin and a colorant, wherein the colorant includes quinacridone pigment having a number average primary particle size of from 30 to 150 nm and having a ratio of a long axis length to a short axis length of from 1.0 to 2.0.


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