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. 29, 2002
Filed:
May. 22, 1998
Applicant:
Inventors:
Yoshihisa Takizawa, Machida, JP;
Hisashi Teraoka, Kawasaki, JP;
Koichi Osumi, Yokohama, JP;
Yoichi Takada, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 1/102 ;
U.S. Cl.
CPC ...
C09D 1/102 ;
Abstract
Disclosed herein is an ink set comprising two black inks the coloring materials for which are both pigments, wherein one black ink is cationic, and the other black ink is anionic.