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:
Dec. 16, 1986
Filed:
Apr. 20, 1984
Applicant:
Inventors:
Isamu Itoh, Kanagawa, JP;
Mitsunori Ono, Kanagawa, JP;
Keiji Mihayashi, Kanagawa, JP;
Seiji Ichijima, Kanagawa, JP;
Hidetoshi Kobayashi, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430390 ; 430218 ; 430219 ; 430222 ; 430223 ; 430405 ; 430410 ; 430428 ; 430430 ; 430435 ; 430445 ; 430484 ; 430566 ; 430955 ; 430957 ; 430959 ; 430960 ;
Abstract
A method of processing a photographic material which contains a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent capable of releasing a photographically useful agent by ring cleavage of a 4- to 7-membered ring containing at least one carbonyl group in the presence of a hydroxylamine, whereby both high stability of the photographic material upon storage and timely release of the photographically useful agent upon processing are achieved.