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.:
Date of Patent:
Oct. 22, 2013
Filed:
Nov. 30, 2007
Sukanya Rengaswamy, Corvallis, OR (US);
Zia Ur Rehman, Corvallis, OR (US);
Mary E. Austin, Corvallis, OR (US);
Sukanya Rengaswamy, Corvallis, OR (US);
Zia Ur Rehman, Corvallis, OR (US);
Mary E. Austin, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of decreasing L*min and reducing stacked haze in a black region of an ink-jet printed image is disclosed which includes providing an ink-jet ink receptive medium and ink-jetting at least one ink-jet ink onto the medium to form a printed medium including an image having at least one black region. At least one of the ink-jet inks includes a black ink-jet ink including a liquid vehicle and a certain black azo dye having the Formula 1. The method includes stacking the printed medium, to obtain a printed medium having decreased L*min and reduced stacked haze in the black region(s).