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:
Jun. 14, 1983
Filed:
Jun. 15, 1981
Masatoshi Sugiyama, Minami-ashigara, JP;
Akira Ogawa, Minami-ashigara, JP;
Shinichi Imai, Odawara, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An aqueous ink composition having a water-soluble dye and a wetting agent dissolved in water is disclosed. The composition uses at least one water-soluble dye of the formula (I): ##STR1## wherein R.sub.1 is a phenyl group, a substituted phenyl group, an alkyl group or a substituted alkyl group; R.sub.2 is an alkyl group, a phenyl group, a substituted phenyl group, a cyano group, a hydroxyl group, an alkoxy group, an amino group, an acylamino group, an anilino group, a ureido group, an alkoxycarbonyl group or a carbamoyl group; X is a halogen atom, an alkyl group or an alkoxy group; n is 1, 2, 3, 4 or 5; and m is 1, 2, or 3, provided that the sulfo group in the formula (I) may be an alkali metal salt, an ammonium salt or an organic amine salt.