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.

Date of Patent:
Apr. 10, 1984

Filed:

Jul. 07, 1982
Applicant:
Inventors:

Syun Takada, Odawara, JP;

Takashi Kadowaki, Odawara, JP;

Mitsuhiro Okumura, Odawara, JP;

Shinichi Nakamura, Tokyo, JP;

Masaru Iwagaki, Hachioji, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430569 ; 430570 ; 430571 ; 430572 ; 430573 ; 430574 ; 430576 ; 430577 ;
Abstract

A method for producing a silver halide photographic light-sensitive material having on a support thereof at least one layer formed of an emulsion containing light-sensitive silver halide particles sensitized by a sensitizing dye comprising the steps of adding a first sensitizing dye to an emulsion containing silver halide particles, during the chemical ripening of the silver halide particles, to sensitize the silver halide particles; adding a second sensitizing dye to the emulsion containing the sensitized silver halide particles, after the chemical ripening of the silver halide particles, to form a coating liquid; and coating a support with the coating liquid to produce a silver halide photographic light-sensitive material.


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