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:
Sep. 04, 2012
Filed:
Jan. 26, 2011
Hiroshi Asakawa, Ebina, JP;
Hitoshi Nagashima, Kawasaki, JP;
Takatoshi Tanaka, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording medium includes a substrate and two or more ink receiving layers on each of a first surface and a second surface of the substrate. The ink receiving layers each contain a pigment and a binder. A, A, B, and B(nm) satisfy the relationships (1), (2), and (3), where Ais the peak of the pore radius distribution of the outermost ink receiving layer on the first surface side, Ais the peak of the pore radius distribution of the ink receiving layer adjacent to the outermost layer, Bis the peak of the pore radius distribution of the outermost ink receiving layer on the second surface side, and Bis the peak of the pore radius distribution of the ink receiving layer adjacent to the outermost layer. The arithmetic average roughness Ra specified in JIS B 0601 of each of the outermost ink receiving layers is 0.50 μm or more.