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:
Mar. 18, 2008
Filed:
Jun. 29, 2004
Applicants:
Nobuyuki Takizawa, Wakayama, JP;
Takehiro Tsutsumi, Wakayama, JP;
Shigeki Nagashima, Wakayama, JP;
Inventors:
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an aqueous ink for ink jet printer recording including a water dispersion of water-insoluble vinyl polymer particles containing carbon black, wherein the carbon black has a volatile content of 5% or less at 950° C. and includes at least two kinds of carbon black differing from each other in at least one of a primary particle diameter, a specific surface area and a DBP absorption amount.