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. 02, 2014

Filed:

Jan. 27, 2012
Applicants:

Ryo Saito, Kanagawa, JP;

Yasufumi Ooishi, Kanagawa, JP;

Inventors:

Ryo Saito, Kanagawa, JP;

Yasufumi Ooishi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/01 (2006.01); C09D 11/00 (2014.01); B41J 2/21 (2006.01);
U.S. Cl.
CPC ...
C09D 11/40 (2013.01); B41J 2/2107 (2013.01); C09D 11/324 (2013.01); C09D 11/54 (2013.01);
Abstract

An ink composition is disclosed which includes carbon black; at least one selected from the group consisting of a cyan pigment and a magenta pigment; at least one selected from the group consisting of polyvinyl pyrrolidone, polyvinyl alcohol, and polyethylene glycol, at a ratio of 0.01% by mass or higher but lower than 1.00% by mass, relative to the total amount of the composition; water-insoluble or substantially water-insoluble resin particles, water-insoluble or substantially water-insoluble wax particles or any mixture thereof; and water. An ink set and an image forming method are also disclosed.


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