Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Reexamination Certificate
2005-04-12
2005-04-12
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
C430S569000, C430S449000
Reexamination Certificate
active
06878511
ABSTRACT:
A process of producing a silver halide photographic emulsion containing tabular silver halide grains having an aspect ratio of 5 or more, which comprises using silver halide fine grains as prepared by the following method in at least one of a nucleation step and a growth step of the production of silver halide emulsion, the method comprising mixing at least a silver salt aqueous solution and a halide aqueous solution to prepare silver halide fine grains, wherein one of the silver salt aqueous solution and the halide aqueous solution is introduced as a jet flow into a mixer; a region where the jet flow slows down is provided within the mixer; and the other solution is introduced into the jet flow before the velocity of the jet flow has become {fraction (1/10)} of the velocity at the time when the jet flow comes into the slowing-down region.
REFERENCES:
patent: 6645713 (2003-11-01), Saito
patent: 2000-338620 (2000-12-01), None
patent: 2001-290231 (2001-10-01), None
Mitsui Tetsuro
Nakatsugawa Haruyasu
Ohzeki Katsuhisa
Fuji Photo Film Co. , Ltd.
Letscher Geraldine
Sughrue & Mion, PLLC
LandOfFree
Process of producing silver halide photographic emulsions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of producing silver halide photographic emulsions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing silver halide photographic emulsions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3383666