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:
Apr. 12, 2005
Filed:
Oct. 30, 2003
Applicants:
Simona Fava, Genoa, IT;
Roberta Bellunghi, Carcare, IT;
Roberta Ganduglia, Vado Ligure, IT;
Luca Ceruti, Savona, IT;
Inventors:
Simona Fava, Genoa, IT;
Roberta Bellunghi, Carcare, IT;
Roberta Ganduglia, Vado Ligure, IT;
Luca Ceruti, Savona, IT;
Assignee:
Ferrania, S.p.A., Ferrania, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C001/005 ; G03C001/494 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to a new silver halide tabular grain emulsion, wherein said silver halide emulsion comprises tabular grains having average thickness lower than 0.15 μm, an average diameter of at least 1.20 μm and an average aspect ratio of at least 8:1, and showing a coefficient of diameter variation COVd within the range of from 31% to 44% and a coefficient of thickness variation COVt lower than 25%.