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. 23, 2014

Filed:

Jul. 13, 2009
Applicants:

Shiro Hirano, Tokyo, JP;

Naohiro Hirose, Tokyo, JP;

Kaori Soeda, Tokyo, JP;

Miyuki Murakami, Tokyo, JP;

Youhei Ohno, Tokyo, JP;

Inventors:

Shiro Hirano, Tokyo, JP;

Naohiro Hirose, Tokyo, JP;

Kaori Soeda, Tokyo, JP;

Miyuki Murakami, Tokyo, JP;

Youhei Ohno, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 9/08 (2006.01); G03G 9/09 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0178 (2013.01); G03G 9/0821 (2013.01); G03G 9/09 (2013.01); G03G 9/0926 (2013.01); G03G 9/0918 (2013.01);
Abstract

Provided is a full color image forming method wherein high color reproducibility especially on a blue system and a green system can be obtained and an excellent gradation property can be obtained in a full color image to be obtained. The full color image forming method for forming a full color image by using at least yellow toner, magenta toner, and two kinds of cyan toners (1, 2) is characterized in that a toner image formed by the cyan toner (1) alone has the value of the maximum color saturation (C*) of not less than 50 and the value of lightness (L*) in a color space represented by an L*a*b* colorimetric system of not less than 30 and not more than 52, and that a toner image formed by the cyan toner (2) alone has the value of the maximum color saturation (C*) of not less than 50 and the value of the lightness (L*) in the color space represented by the L*a*b* colorimetric system of not less than 58 and not more than 75.


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