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:
May. 19, 1981
Filed:
Jan. 16, 1978
Applicant:
Inventors:
Tateshi Iytaka, Hino, JP;
Syunji Matsuo, Hino, JP;
Toshio Nagatani, Hino, JP;
Kazuo Takahashi, Hino, JP;
Takeshi Habu, Hino, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430403 ; 430436 ; 430264 ; 430949 ; 430600 ; 430570 ;
Abstract
A light-sensitive silver halide photographic material containing a tetrazolium compound, is treated with a developing solution containing no hydroquinone developing agent, which material comprises a support and a silver halide emulsion layer coated thereon, containing silver halide grains having an average grain size of 0.05 to 1.5.mu., at least 75% of said grains being within a range of 0.6 to 1.4 times the said average grain size and a sensitizing dye.