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. 29, 2002
Filed:
Oct. 26, 1998
Applicant:
Inventors:
Noribumi Koitabashi, Yokohama, JP;
Yoshihisa Takizawa, Machida, JP;
Yutaka Kurabayashi, Higashimurayama, JP;
Takeo Eguchi, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 1/100 ; C09D 1/102 ;
U.S. Cl.
CPC ...
C09D 1/100 ; C09D 1/102 ;
Abstract
An ink of the present invention has a dye and a pigment. The pigment is a self-dispersant type pigment and an anionic dye in which at least one anionic group is bound on a surface of the pigment directly or through another atomic group and having a Ka value of less than 1 ml·m ·msec according to a Bristow method. An image having an excellent image quality is formed by using such an ink in the process of ink jet recording.