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:
Aug. 23, 1977
Filed:
Nov. 07, 1975
Eiichi Okutsu, Minami-ashigara, JA;
Katsumi Hayashi, Minami-ashigara, JA;
Shigenori Moriuchi, Minami-ashigara, JA;
Takeo Sakai, Minami-ashigara, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
A continuous method for producing halftone images comprising: 1. image-wise exposing a lith-type silver halide photographic material comprising a silver halide emulsion with not less than about 85 mol% silver chloride and not more than about 8 mol% of silver iodide and containing at least one organic silver complex compound which is substantially insoluble in water in contiguous relationship with a photosensitive silver halide emulsion which contains not less than 60 mol% silver chloride and which is chemically and spectrally sensitized; and 2. developing the photographic material in a continuous fashion with a developer containing hydroquinone and a carbonyl-bisulfite adduct in the presence of a polyalkylene oxide of a molecular weight not less than 1000.