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:
May. 23, 2006

Filed:

Sep. 29, 2003
Applicants:

Toshiki Taguchi, Shizuoka, JP;

Toshiaki Aono, Shizuoka, JP;

Inventors:

Toshiki Taguchi, Shizuoka, JP;

Toshiaki Aono, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a black ink for inkjet recording obtained by dissolving and/or dispersing, in an aqueous medium, at least one black azo dye having a specific property or structure and further containing at least one metal chelating agent, which is excellent in durability of image including image quality and discharge property even after the ink is filled in an ink cassette and stored for a long period of time while being set in a printer.


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