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:
Jan. 23, 2001
Filed:
Apr. 30, 1999
Applicant:
Inventors:
Vladek P. Kasperchik, Corvallis, OR (US);
Garold E. Radke, Lebanon, OR (US);
Assignee:
Hewlett Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 1/100 ;
U.S. Cl.
CPC ...
C09D 1/100 ;
Abstract
In accordance with the invention inks suitable for use in ink-jet printers and method for formulating the same are provided. More particularly, inks comprising the present dyes and buffers exhibit excellent color performance and lightfastness across a range of media. Furthermore, the inks enable good reliability in an environment having a relatively high concentration of precipitating agents. This reliability enables the use of precipitation bleed control mechanisms.