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. 06, 1976
Filed:
May. 16, 1974
Motohiko Tsubota, Minami-ashigara, JA;
Yoshiharu Fuseya, Minami-ashigara, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
A light-sensitive member for use in a color diffusion transfer element which comprises a support having thereon at least one silver halide emulsion layer and at least one dye developing agent combined with the silver halide in the silver halide emulsion layer, wherein at least one layer on the support contains an auxiliary developing agent selected from the group consisting of a catechol having at least one substituent, with at least one of the substituents being selected from the group consisting of an alkoxy group, an acylamino group, an acylimino group, an alkylsulfonamido group, an alkylthio group, an arylthio group, an alkylseleno group, an arylseleno group and a heterocyclic group; dissolved in a substantially water-insoluble solvent and present in the layer as finely divided liquid droplets.