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:
Nov. 06, 2007
Filed:
May. 02, 2006
Itaru Tsuji, Kawasaki, JP;
Yoshio Nakajima, Yokohama, JP;
Shinichi Hakamada, Kawasaki, JP;
Yoichi Takada, Yokohama, JP;
Itaru Tsuji, Kawasaki, JP;
Yoshio Nakajima, Yokohama, JP;
Shinichi Hakamada, Kawasaki, JP;
Yoichi Takada, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy can improve the ink ejection stability. An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy is characterized in that the ink comprises a pigment represented by the general formula (1), a dispersant and a water-soluble organic compound, and the pigment substantially shows neither an exothermic peak nor an endothermic peak in the range 25° C. or more to 200° C. or less of a DSC curve obtained by means of a differential scanning calorimeter (DSC)