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:
Nov. 23, 2004
Filed:
May. 20, 2003
Kouji Tashiro, Hachioji, JP;
Toyoki Nishijima, Hachioji, JP;
Shinichi Suzuki, Hachioji, JP;
Kunimasa Hiyama, Hachioji, JP;
Junji Ito, Hino, JP;
Konica Corporation, Tokyo, JP;
Abstract
An ink-jet recording sheet comprising a support having thereon in the following order: (i) a first ink absorbing layer comprising gelatin and a first cationic polymer; and (ii) a second ink absorbing layer comprising gelatin and a second cationic polymer, wherein the first cationic polymer has a larger ink absorption ratio A than the second cationic polymer, the ink absorption ratio A being defined by the following equation: A (%)=((an optical density of a print after immersion in water)/(an optical density of a print before immersion in water))×100.