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:
Jan. 06, 2015

Filed:

Jul. 13, 2011
Applicants:

Howard S Tom, San Jose, CA (US);

Doris Pik-yiu Chun, Santa Clara, CA (US);

Sivapackia Ganapathiappan, Los Altos, CA (US);

Hou T. NG, Campbell, CA (US);

Inventors:

Howard S Tom, San Jose, CA (US);

Doris Pik-Yiu Chun, Santa Clara, CA (US);

Sivapackia Ganapathiappan, Los Altos, CA (US);

Hou T. Ng, Campbell, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/01 (2006.01); B41J 2/175 (2006.01); B41J 2/21 (2006.01); C09D 11/322 (2014.01); C09D 11/40 (2014.01);
U.S. Cl.
CPC ...
B41J 2/17506 (2013.01); B41J 2/2107 (2013.01); C09D 11/322 (2013.01); C09D 11/40 (2013.01);
Abstract

An ink set includes a first ink and a second ink, where each of the inks has a conductivity that is less than 200 pS/cm. The first ink includes a first pigment of a first color; a carrier fluid; and a concentration of a dispersant. The second ink includes a second pigment of a second color that is different from the first color; the same carrier fluid as the first ink; and substantially the same concentration of the dispersant as the first ink.


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