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:
Aug. 12, 2003

Filed:

Mar. 18, 2002
Applicant:
Inventor:

Shigeharu Urabe, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C 1/015 ;
U.S. Cl.
CPC ...
G03C 1/015 ;
Abstract

A process for producing a silver halide emulsion is disclosed, which comprises disposing a mixer equipped with a first channel and a second channel brought into partial contact therewith; and allowing a silver salt solution (Fluid 1) and a halide solution (Fluid 2) to pass through said first channel and said second channel, respectively, to thin said two fluids into lamellae having an open interface therebetween and having a thickness of 1 to 500 &mgr;m in a normal line direction on the contact interface, thereby inducing diffusion, transfer and reaction of silver ions and halogen ions between said two thin layers, and thus forming silver halide grains continuously.


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