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:
Aug. 04, 1992
Filed:
Jul. 25, 1991
Tsuyoshi Eida, Yokohama, JP;
Megumi Saito, Kawasaki, JP;
Katsuhiro Shirota, Kawasaki, JP;
Takao Yamamoto, Isehara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink comprises a dye and a liquid medium, wherein said dye is a dye represented by the following Formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent hydrogen atom, a methyl group, a methoxy group or --SO.sub.3 M, R.sub.3 and R.sub.4 each represent a methyl group, methoxy group or an acetylamino group; X represents an acetyl group, a benzoyl group, --SO.sub.2 C.sub.6 H.sub.5, --SO.sub.2 C.sub.6 H.sub.4 --CH.sub.3, or --N.sub.3 C.sub.3 (NHR.sub.5)(NHR.sub.6), where R.sub.5 and R.sub.6 each represent a hydrogen atom, or --C.sub.2 H.sub.4 OH; and M represents an alkali metal, an ammonium group, or an organic ammonium group. An ink-jet recording process comprising applying the ink to a recording medium.