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:
Oct. 02, 1990
Filed:
Sep. 27, 1989
Yasuhiko Kawashima, Hino, JP;
Shinri Tanaka, Hino, JP;
Tamotsu Kojima, Kokubunji, JP;
Nobuaki Kagawa, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
A silver halide photographic light sensitive material containing a water-soluble oxonol dye is disclosed. The dye is represented by the following Formula I: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom, an alkyl group, an aryl group or a alkenyl group; R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each a hydrogen atom, an alkyl group, an aryl group, an alkenyl group or a heterocyclic group provided that at least one of said R.sup.3 , R.sup.4, R.sup.5 and R.sup.6 is a heterocyclic group and R.sup.3 and R.sup.4, and R.sup.5 and R.sup.6 are respectively allowed to bond to form a heterocyclic ring; and the groups represented by said R.sup.1 through R.sup.6 are allowed to be substituted or unsubstituted provided that at least one of said groups a water-solubilizing group or a group having a water solubilizing group; L.sub.1, L.sub.2 and L.sub.3 are each a substituted or unsubstituted methine group; and n is an integer of zero, 1 or 2.