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:
Jan. 15, 1991
Filed:
Jan. 25, 1990
Hideo Ikeda, Minami-Ashigara, JP;
Shingo Ishimaru, Minami-Ashigara, JP;
Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;
Abstract
A silver halide photographic light-sensitive material includes a support having thereon at least one silver halide light-sensitive emulsion layer, characterized in that at least one of a plurality of emulsions contained in the emulsion layer contains tabular grains having a thickness of less than 0.5 .mu.m, a diameter of at least 0.3 .mu.m, and an average ratio of grain diameter to grain thickness of at least 2, the tabular grains occupy at least 50% of the entire projected area of all the grains contained in the emulsion, the surfaces of the grains are chemically sensitized, and a ratio of surface sensitivity to internal sensitivity of the grains is 0.5 to 2.