Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Reexamination Certificate
2008-04-15
2008-04-15
Visconti, Geraldina (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
C430S618000, C430S619000, C430S620000, C430S348000, C430S567000, C430S640000, C430S642000, C430S598000, C430S264000
Reexamination Certificate
active
11341366
ABSTRACT:
The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a (111) face as a major face; the tabular grains have at least 2 parallel twin crystal planes in a grain; and a variation coefficient of a distribution of distances between closest twin crystal planes is 20% or less. Also provided is an image forming method that includes image exposure using fluorescent intensifying screens and thermal development.
REFERENCES:
patent: 6576410 (2003-06-01), Zou et al.
patent: 6890705 (2005-05-01), Miyake et al.
Funakubo Takeshi
Miyake Kiyoteru
Takahashi Kazutaka
Burke Margaret A.
FUJIFILM Corporation
Moss Sheldon J.
Visconti Geraldina
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