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:
Jan. 11, 2011
Filed:
Apr. 04, 2006
Hisao Kamo, Ushiku, JP;
Masanori Ito, Tokyo, JP;
Takashi Sawada, Yokohama, JP;
Muneyoshi Sunada, Tokyo, JP;
Yasuyuki Ishida, Odawara, JP;
Hiroshi Asakawa, Ebina, JP;
Tsuyoshi Santo, Yokohama, JP;
Mariko Suzuki, Kawasaki, JP;
Satoko Ito, Tokyo, JP;
Hisao Kamo, Ushiku, JP;
Masanori Ito, Tokyo, JP;
Takashi Sawada, Yokohama, JP;
Muneyoshi Sunada, Tokyo, JP;
Yasuyuki Ishida, Odawara, JP;
Hiroshi Asakawa, Ebina, JP;
Tsuyoshi Santo, Yokohama, JP;
Mariko Suzuki, Kawasaki, JP;
Satoko Ito, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an inkjet recording medium in which hydrated alumina and a sulfinic acid compound or thiosulfonic acid compound coexist in a pigment in an ink receiving layer, and which can prevent white-background yellowing during storage in a resin file holder or the like and ensure printing quality at the same time. The ink receiving layer of the inkjet recording medium contains the sulfinic acid compound or thiosulfonic acid compound, which functions to prevent yellowing, in a salt form or in a free form so as to be diffusible.