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. 15, 2005
Filed:
Oct. 10, 2003
Yuko Yakushigawa, Kanagawa, JP;
Yoshihisa Takizawa, Tokyo, JP;
Kumiko Mafune, Kanagawa, JP;
Hisashi Teraoka, Kanagawa, JP;
Tsuyoshi Kanke, Kanagawa, JP;
Yuko Yakushigawa, Kanagawa, JP;
Yoshihisa Takizawa, Tokyo, JP;
Kumiko Mafune, Kanagawa, JP;
Hisashi Teraoka, Kanagawa, JP;
Tsuyoshi Kanke, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink set includes inks each containing a colorant and an aqueous medium, wherein in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, the difference between respective images' ΔE, the images being produced with the respective inks, is 10 or less in a CIELAB color space display system, and each of the images has a residual ratio of reflection density of 70% or more. By using the ink set including the color inks with which images having substantially the same fading ΔE after long-term storage are produced, the color balance of a recorded image can be maintained after long-term storage.