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:
Mar. 01, 1988
Filed:
May. 22, 1986
Toshihiko Yagi, Hino, JP;
Toshifumi Iijima, Kokubunji, JP;
Syoji Matsuzaka, Hachioji, JP;
Hisashi Yamaguchi, Hachioji, JP;
Mikio Miura, Hino, JP;
Abstract
The present invention is to provide a method for uniforming a group of silver halide particles of a silver halide emulsion to be used in a silver halide photographic light-sensitive material into a group of particles which is monodispersive and whose crystal habit is tetradecahedral or octahedral so that the complication and instabilization of the conventional particles can be reduced to be processed. Namely, in a process for growing particles in which a water-soluble silver salt is added to a core emulsion and a silver halide is produced to add to the core, this method is to adjust the pAg values of an emulsion being applied to the abovementioned process to increase by not less than 0.3 multistepwise or continuously.