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:
Feb. 16, 2010
Filed:
Aug. 03, 2004
Hitoshi Nagashima, Kanagawa, JP;
Tsuyoshi Santo, Kanagawa, JP;
Motoaki Sato, Tokyo, JP;
Hiroshi Asakawa, Kanagawa, JP;
Muneyoshi Sunada, Tokyo, JP;
Satoko Kakumoto, Kanagawa, JP;
Hitoshi Nagashima, Kanagawa, JP;
Tsuyoshi Santo, Kanagawa, JP;
Motoaki Sato, Tokyo, JP;
Hiroshi Asakawa, Kanagawa, JP;
Muneyoshi Sunada, Tokyo, JP;
Satoko Kakumoto, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides a recording medium providing an image storage property over a prolonged period and satisfactory recording properties at the same time, and a producing method for securely realizing such characteristics. In incorporating a colorant deterioration preventing agent in an ink-receiving layer, the colorant deterioration preventing agent is dissolved in a solvent and is applied on the ink-receiving layer thereby forming a high concentration region containing the colorant deterioration preventing agent at a high concentration and a low concentration region containing the colorant deterioration preventing agent at a low concentration, with the high concentration region positioned closer to the recording surface.