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:
Apr. 08, 2008
Filed:
May. 25, 2005
Yasuhiro Nito, Kanagawa, JP;
Shinya Mishina, Kanagawa, JP;
Shinichi Hakamada, Kanagawa, JP;
Yoichi Takada, Kanagawa, JP;
Toshifumi Akasaka, Kanagawa, JP;
Masashi Tsujimura, Kanagawa, JP;
Yasuhiro Nito, Kanagawa, JP;
Shinya Mishina, Kanagawa, JP;
Shinichi Hakamada, Kanagawa, JP;
Yoichi Takada, Kanagawa, JP;
Toshifumi Akasaka, Kanagawa, JP;
Masashi Tsujimura, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A reaction solution to be used for image recording with an ink containing a coloring material in a dissolved or dispersed state in order to achieve a high level of image density with stability, wherein the reaction solution contains a polyvalent metal ion and an organic solvent to destabilize the dissolved or dispersed state of the coloring material in the ink in contact with the ink, has a pH of 2 or higher, and has a buffering action for pH, wherein the buffering action means it can maintain pH variation within the range of 0.5 before and after the addition of 1.0 ml of a 0.1 N aqueous lithium hydroxide solution to 50 ml of the reaction solution.