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:
May. 14, 2002
Filed:
Sep. 29, 2000
Yoshiro Ochiai, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Abstract
There is disclosed a spectrally and chemically sensitized silver halide emulsion, which comprises silver halide grains, wherein 50% or more of total projected area of the grains is provided by tabular grains having {111} principal planes and an aspect ratio of 2.0 or more, and said tabular grains contain silver iodobromochloride or bromochloride grains each having an AgCl content of 90 mole % or more, and having angular corners. There is also disclosed a silver halide color photographic light-sensitive material containing the silver halide emulsion in at least one silver halide emulsion layer, and image-forming method comprising subjecting the material to scanning exposure, and then conducting color development. The present invention provides a silver halide emulsion, which is monodispersed, high-speed, and high contrast emulsion excellent in grain shape stability of {111} tabular grains; and, the emulsion improves high illumination reciprocity law failure and latent image stability after exposure to light. The present invention further provides a color photographic light-sensitive material using the emulsion, and image-forming method that exerts photographic characteristics of the above-described emulsion or material even when they are processed by rapid processing using a scanning exposure.