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:
Feb. 21, 1984
Filed:
Sep. 09, 1981
Takao Abe, Hino, JP;
Satoru Hohnishi, Hino, JP;
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
A direct positive type light sensitive silver halide photographic material is disclosed. At least one layer containing an unfogged internal latent image type silver halide emulsion, is provided on a support, and an internal latent image type silver halide emulsion having fog centers in silver halide grains, is incorporated in said layer or in another constituent layer of the photographic material. A dye image forming substance may be incorporated in the same layer or in a separate layer to form a color diffusion transfer type light sensitive photograhic material. The photographic materials present a positive image having a high maximum density and a low minimum density.