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. 24, 1980
Filed:
Jun. 22, 1977
Yuzuru Sato, Hachioji, JP;
Ryuichiro Kobayashi, Hachioji, JP;
Naoshi Kunieda, Tokyo, JP;
Kazumasa Watanabe, Tokyo, JP;
Noboru Mizukura, Hachioji, JP;
Kenji Yoshida, Yokohama, JP;
Tadanori Oya, Kawasaki, JP;
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Mitsubishi Chemical Industries Limited, Tokyo, JP;
Abstract
In a dye image forming process in color photography comprising imagewise exposing a photographic element comprising a support and a light sensitive silver halide emulsion layer, and processing the exposed photographic element with an alkaline processing solution in the presence of a dye developer whereby a dye image corresponding to the imagewise exposure is formed by oxidation of said developer as a function of development of silver halide, the improvement which comprises the dye developer being a mono azo dye developer represented by the following formula: